A test system for simulating single-sided thermal damage of resin-based composites

Abstract

The application provides a kind of test system for simulating resin matrix composite single-sided thermal damage, belongs to the technical field of composite material testing, the test system is composed of airflow loading mechanism, airflow processing mechanism, closed clamping mechanism, detection unit and data collector, airflow loading mechanism is used to transport inert gas;Airflow processing mechanism input end is connected with airflow loading mechanism output end to realize inert gas heating or refrigeration;Closed clamping mechanism input end is connected with airflow processing mechanism output end to fix the sample and form airtight environment.The system can quantitatively high / low temperature thermal damage of resin matrix composite, quantitatively single-sided and local airflow thermal damage, single-sided cold and hot cycle / cold and hot impact damage, and can also accurately measure the dynamic change of resin matrix composite parameters such as temperature, strain and thermal conductivity.The system structure is simple, stable and reliable in operation, and has good control effect on temperature and heat flow.

Description

Technical Field

[0001] This invention belongs to the field of composite material testing technology, specifically relating to a testing system for simulating one-sided thermal damage of resin-based composite materials. Background Technology

[0002] Resin-based composite materials, with their advantages such as high specific strength, high specific modulus, fatigue resistance, corrosion resistance, and designability, have become important candidate materials for high-performance cold-end components of aero engines and are gradually being applied to cold-end components of aero engines (such as thermal regulator plates, fan casings, and bypass casings).

[0003] The service environment of resin composite materials used in aero-engines is usually one-sided or localized heating, often accompanied by hot airflow. Currently, most researchers simply place the materials in humid heat and high and low temperature environmental chambers to test their environmental adaptability. This approach only considers the damage behavior of materials under a single uniform high and low temperature, humid heat, ultraviolet environment or uniform alternating environment. It cannot truly reflect the damage behavior of materials under one-sided or localized heating, especially under one-sided hot airflow. Moreover, actual research has found that due to thermal expansion and contraction and internal forces, the damage mode of materials under one-sided heating, especially under one-sided hot airflow, is very different from that under uniform heating.

[0004] In summary, the development of a resin-based composite material damage testing system with single-sided hot airflow can simultaneously collect data on the temperature, strain, and other parameters of the heated surface and the back surface of the material under airflow load. This is of great significance for studying the damage behavior and failure mechanism of materials under single-sided and localized heating environments, as well as for the safe service of material components. Summary of the Invention

[0005] The purpose of this invention is to provide a testing system for simulating one-sided thermal damage of resin-based composite materials, and to collect the changes in parameters such as temperature and strain of the heated surface and the back surface of the material under airflow load, which can effectively solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A testing system for simulating one-sided thermal damage of resin-based composite materials, comprising:

[0008] An airflow loading mechanism for conveying inert gas;

[0009] An airflow handling mechanism, the input end of which is connected to the output end of the airflow loading mechanism, is used to achieve inert gas heating or cooling;

[0010] A sealed clamping mechanism, the input end of which is connected to the output end of the airflow treatment mechanism, is used to fix the sample and form a sealed environment;

[0011] A detection unit, located on the sample, is used to collect temperature and pressure data; and

[0012] A data acquisition unit is mounted on the sealed clamping mechanism and electrically connected to the detection unit, and is used to receive the temperature data and the pressure data.

[0013] As a preferred embodiment of the present invention, the airflow loading mechanism includes:

[0014] The bottle is filled with inert gas.

[0015] Pipe A, one end of which is connected to and communicates with the top of the bottle; and

[0016] Pressure reducing valve-A is installed on the pipeline-A and is used to regulate the gas supply flow rate and gas pressure.

[0017] As a preferred embodiment of the present invention, the airflow handling mechanism includes:

[0018] A heating system used to heat inert gases.

[0019] As a preferred embodiment of the present invention, the heating system includes:

[0020] The heating chamber, with the other end of pipe-A connected and communicating with one end of the heating chamber;

[0021] The heating wires are provided in two sets, symmetrically arranged on the inner walls of both sides of the heating chamber, and are used to achieve inert gas heating;

[0022] Thermostat-A is located on the heating chamber and is electrically connected to the heating wire and the data acquisition unit to automatically adjust the heating temperature;

[0023] Pipe C is located at and connected to the other end of the heating chamber; and

[0024] Pressure reducing valve-C is installed on the pipeline-C and is used to regulate the gas supply flow rate and gas pressure.

[0025] As a preferred embodiment of the present invention, the airflow handling mechanism includes:

[0026] A refrigeration system used to achieve refrigeration of inert gases.

[0027] As a preferred embodiment of the present invention, the refrigeration system includes:

[0028] The other end of the pipe-A is connected to and communicates with one end of the cooling chamber;

[0029] An air compressor is installed on the inner wall of one side of the refrigeration chamber, which is used to achieve inert gas refrigeration;

[0030] Thermostat-B is located on the refrigeration chamber and is electrically connected to the air compressor and the data acquisition unit to automatically adjust the refrigeration temperature.

[0031] Pipe-D, one end of which is connected and communicates with the other end of the refrigeration chamber; and

[0032] Pressure reducing valve-D is installed on the pipeline-D and is used to regulate the gas supply flow rate and gas pressure.

[0033] As a preferred embodiment of the present invention, it further includes:

[0034] The nozzle, located at the output end of the airflow treatment mechanism, is positioned directly opposite the sample and is used to spray heated or cooled inert gas, wherein:

[0035] When the airflow handling mechanism is a heating system, the nozzle is located at the other end of the pipe-C;

[0036] When the airflow handling mechanism is a refrigeration system, the nozzle is located at the other end of the pipe-D.

[0037] As a preferred embodiment of the present invention, the sealed clamping mechanism includes:

[0038] The heat preservation and pressure preservation chamber includes:

[0039] When the airflow handling mechanism is a heating system, the pipe-C passes through the heat-insulating and pressure-holding chamber and extends inward;

[0040] When the airflow handling mechanism is a refrigeration system, the pipe-D passes through the heat-insulating and pressure-maintaining chamber and extends inward;

[0041] A sealing block that can movably seal one end of the heat-insulating and pressure-holding chamber to form a sealed environment;

[0042] An airflow discharge channel is located at the bottom of the heat-insulating and pressure-maintaining chamber and communicates with it; a discharge valve is provided on it for opening and closing.

[0043] The clamping assembly, located in the heat-insulating and pressure-holding chamber, is used to fix the sample.

[0044] As a preferred embodiment of the present invention, the airflow loading mechanism further includes:

[0045] Pipe-B, one end of which is connected to and communicates with the bottom of the bottle; and

[0046] Pressure reducing valve-B is installed on the pipeline-B and is used to regulate the gas supply flow rate and gas pressure;

[0047] The airflow handling mechanism includes:

[0048] A heating system, the input of which is connected to the other end of pipe-A, is used to heat the inert gas; and

[0049] A refrigeration system, whose input end is connected to the other end of pipe-B, is used to achieve inert gas refrigeration, wherein:

[0050] The heating system and the refrigeration system are connected in parallel.

[0051] As a preferred embodiment of the present invention, the heating system includes:

[0052] The heating chamber, with the other end of pipe-A connected and communicating with one end of the heating chamber;

[0053] The heating wires are provided in two sets, symmetrically arranged on the inner walls of both sides of the heating chamber, and are used to achieve inert gas heating;

[0054] Thermostat-A is located on the heating chamber and is electrically connected to the heating wire and the data acquisition unit to automatically adjust the heating temperature;

[0055] Pipe C is located at and connected to the other end of the heating chamber; and

[0056] Pressure reducing valve-C is installed on the pipeline-C and is used to regulate the gas supply flow rate and gas pressure;

[0057] The refrigeration system includes:

[0058] The other end of the pipe-B is connected to and communicates with one end of the cooling chamber;

[0059] An air compressor is installed on the inner wall of one side of the refrigeration chamber, which is used to achieve inert gas refrigeration;

[0060] Thermostat-B is located on the refrigeration chamber and is electrically connected to the air compressor and the data acquisition unit to automatically adjust the refrigeration temperature.

[0061] Pipe-D, one end of which is connected to and communicates with the other end of the refrigeration chamber, and the other end of which is connected to and communicates with pipe-C; the pressure reducing valve-C is located in front of the connection between pipe-D and pipe-C; and

[0062] Pressure reducing valve-D is installed on the pipeline-D and is used to regulate the gas supply flow rate and gas pressure.

[0063] As a preferred embodiment of the present invention, the detection unit includes:

[0064] Temperature sensor A is located at one end of the sample;

[0065] A pressure sensor is disposed at one end of the sample, and is at the same horizontal plane as the temperature sensor-A; and

[0066] Temperature sensor-B is located at the other end of the sample, opposite to temperature sensor-A.

[0067] Compared with the prior art, the beneficial effects of the present invention are:

[0068] This invention can quantitatively measure high / low temperature thermal damage, quantitative single-sided and local airflow thermal damage, and single-sided thermal cycling / thermal shock damage of resin-based composite materials. It can also accurately measure the dynamic changes of parameters such as temperature, strain, and thermal conductivity of resin-based composite materials. The system has a simple structure, stable and reliable operation, and excellent control over temperature and heat flow.

[0069] This invention can meet the testing requirements of different airflow loads from room temperature to 500℃. This system provides an effective test method for revealing the damage mode and failure mechanism of resin-based composite materials under single-sided high / low temperature and single-sided airflow thermal environment. It provides a reliable technical means for the service environment assessment of composite material components such as aero-engine casings, thermal conditioning plates, and blades, and has very important application value. Attached Figure Description

[0070] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0071] Figure 1 This is a perspective view of Example 1 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention;

[0072] Figure 2 This is a three-dimensional cross-sectional view of Example 1 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention;

[0073] Figure 3 This is a top cross-sectional view of Example 1 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention;

[0074] Figure 4 This invention provides a testing system for simulating one-sided thermal damage in resin-based composite materials. Figure 3 Enlarged view of point A in the middle;

[0075] Figure 5 This is a three-dimensional cross-sectional view of Example 2 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention;

[0076] Figure 6 This is a perspective view of Example 3 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention;

[0077] Figure 7 This is a three-dimensional cross-sectional view of Example 3 in a test system for simulating one-sided thermal damage of resin-based composite materials according to the present invention.

[0078] In the picture:

[0079] 1. Airflow loading mechanism; 101. Bottle body; 102. Pipeline-A; 103. Pressure reducing valve-A; 104. Pipeline-B; 105. Pressure reducing valve-B;

[0080] 2. Airflow handling mechanism; 201. Heating chamber; 202. Heating wire; 203. Thermostat-A; 204. Pipeline-C; 205. Pressure reducing valve-C; 206. Refrigeration chamber; 207. Air compressor; 208. Thermostat-B; 209. Pipeline-D; 2010. Pressure reducing valve-D;

[0081] 3. Sealed clamping mechanism; 301. Insulated and pressure-holding chamber; 302. Sealing block; 303. Base plate; 304. Side plate; 305. Fastening bolts; 306. Airflow discharge channel;

[0082] 4. Data acquisition device;

[0083] 5. Spray nozzle;

[0084] 6. Sample;

[0085] 7. Temperature sensor - A;

[0086] 8. Pressure sensor;

[0087] 9. Temperature sensor - B;

[0088] 10. Pressure strain gauge. Detailed Implementation

[0089] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0090] Example 1:

[0091] This invention provides the following technical solutions:

[0092] Please see Figure 1 A testing system for simulating one-sided thermal damage of resin-based composite materials is disclosed. It comprises an airflow loading mechanism 1, an airflow treatment mechanism 2, a sealed clamping mechanism 3, a detection unit, and a data acquisition unit 4. In this embodiment, the airflow treatment mechanism 2 is a heating system, thereby simulating high-temperature environmental damage to the sample 6. The details are as follows:

[0093] Please see Figure 2 The airflow loading mechanism 1 consists of a bottle 101, a pipe-A 102, and a pressure reducing valve-A 103. Specifically, the bottle 101 is filled with an inert gas, which can be high-purity helium, high-purity neon, high-purity argon, or other inert gases as needed. One end of the bottle 101 is connected to the top of the bottle 101 to supply the inert gas. The pressure reducing valve-A 103 is installed on the pipe-A 102 to regulate the gas flow rate and pressure. When the pressure reducing valve-A 103 is opened, the inert gas is supplied through the pipe-A 102; when the pressure reducing valve-A 103 is closed, the inert gas cannot be supplied.

[0094] Please continue reading. Figure 2 The aforementioned heating system consists of a heating chamber 201, heating wires 202, a temperature controller-A 203, a pipe-C 204, and a pressure reducing valve-C 205. Specifically, the other end of pipe-A 202 is connected to one side of the heating chamber 201, and the inert gas is transported to the heating chamber 201 through pipe-A 202 for heating. Two sets of heating wires 202 are symmetrically fixed to the inner walls of both sides of the heating chamber 201 to heat the inert gas. Heating is achieved through the heating wires 202. The temperature controller-A 203 is fixed to the top of the heating chamber 201 and is electrically connected to the heating wires 202 and the data acquisition unit 4 to automatically adjust the heating temperature. Specifically, the data acquisition unit 4 collects temperature data and automatically adjusts the heating set temperature of the temperature controller-A 203, ultimately heating the gas through the heating wires 202 to adjust it to the temperature required for simulating high-temperature environmental damage. Pipe-C 205... One end of 204 is connected to the other end of the heating chamber 201 and a pressure reducing valve-C 205 is installed on the pipe-C 204 to regulate the gas supply flow and pressure. When the pressure reducing valve-C 205 is opened, the heated inert gas is transported through the pipe-C 204; when the pressure reducing valve-C 205 is closed, the supply can be disconnected.

[0095] Please refer to the following: Figure 2A nozzle 5 is fixed at the other end of the above-mentioned pipe-C 204, which is set facing the sample 6. It is used to spray the heated or cooled inert gas. The heated inert gas is sprayed out evenly through the nozzle 5, and the spraying area can be expanded. Preferably, the nozzle 5 can be selected as conical, flat or other shape according to the needs of achieving the requirements.

[0096] Please see Figure 2 , Figure 3 and Figure 4 The sealed clamping mechanism 3 consists of a heat-insulating and pressure-holding chamber 301, a sealing block 302, an airflow discharge channel 306, and a clamping assembly. Specifically, the aforementioned pipe-C 204 penetrates the heat-insulating and pressure-holding chamber 301 and extends inward, meaning that a portion of the pipe-C 204 and the nozzle 5 are located inside the heat-insulating and pressure-holding chamber 301. The sealing block 302 can movably seal one end of the heat-insulating and pressure-holding chamber 301 to form a sealed environment. Correspondingly, one end of the heat-insulating and pressure-holding chamber 301 is designed to be open, and then sealed by the sealing block 302. Preferably, the sealing block 302 is provided with a sealing ring to improve the sealing performance. The sealing block 302 achieves sealing by insertion and removal. The airflow discharge channel 306 is fixed to the bottom of the heat-insulating and pressure-holding chamber 301 and communicates with it. It is provided with a discharge valve to achieve opening and closing. The airflow discharge channel 306 is used to achieve exhaust gas discharge, which is achieved by opening and closing the discharge valve. The clamping assembly is located inside the heat-insulating and pressure-holding chamber 301 to fix the sample 6.

[0097] Please see Figure 4 This embodiment illustrates one configuration of the clamping assembly, specifically comprising a base plate 303, side plates 304, and fastening bolts 305. The base plate 303 is fixed to the bottom wall of the heat preservation and pressure holding chamber 301. Two side plates 304 are provided and symmetrically fixed to the top of the base plate 303. Fastening bolts 305 are threaded onto both side plates 304. When installing and fixing the sample 6, the sample 6 is placed on the base plate 303, with the side to be tested facing the nozzle 5, and the other side facing the heat preservation and pressure holding chamber 301 as close as possible to the open side of the heat preservation and pressure holding chamber 301. When the sealing block 302 is sealed, the sample 6 is made to fit against the sealing block 302. Then, the two fastening bolts 305 are rotated and adjusted to finally fix the sample 6. Correspondingly, when it is necessary to remove the sample 6, simply rotate and adjust the fastening bolts 305 in the opposite direction. It should be noted that the above clamping assembly includes, but is not limited to, the above-described embodiment.

[0098] Please continue reading. Figure 4The detection unit consists of a temperature sensor-A7, a pressure sensor 8, and a temperature sensor-B9. Specifically, after fixing the sample 6, the temperature sensor-A7 and the pressure sensor 8 are fixed on the side of the sample 6 facing the nozzle 5, and the temperature sensor-B9 is fixed on the other side of the sample 6. The temperature sensor-A7 and the pressure sensor 8 collect temperature data (i.e., measure the airflow temperature) and pressure data (i.e. measure the flow rate and pressure load of the hot airflow) on one side of the sample 6, and the temperature sensor-B9 collects temperature data on the other side of the sample 6. By measuring the temperature on both sides, the heat insulation and heat conduction performance of the sample 6 can be obtained. Preferably, a pressure strain gauge 10 can also be attached to the other end of the sample 6 to realize dynamic monitoring of the deformation of the sample 6 during the high-temperature environment damage simulation.

[0099] Please refer to the following at the end. Figure 4 The data acquisition unit 4 is fixed on the top of the heat preservation and pressure holding chamber 301. Corresponding wire holes are opened on the top of the heat preservation and pressure holding chamber 301. Temperature sensor-A 7, pressure sensor 8, temperature sensor-B 9 and pressure strain gauge 10 are all electrically connected to the data acquisition unit 4 through corresponding cables, and then transmit the collected data. The temperature controller-A 203 is electrically connected to the data acquisition unit 4 through a cable. The data acquisition unit 4 automatically controls the temperature controller-A 203 based on the temperature data collected by temperature sensor-A 7, and then adjusts the heating temperature of heating wire 202, and finally adjusts it to the required temperature.

[0100] The working principle or process of this embodiment is as follows:

[0101] S1. Remove the sealing block 302, fix the sample 6 with the clamping assembly, fix the temperature sensor-A 7 and pressure sensor 8 on the side of the sample 6 facing the nozzle 5, then fix the temperature sensor-B 9 and pressure strain gauge 10 on the other side of the sample 6, and then assemble the sealing block 302 to form a sealed environment in the heat preservation and pressure preservation chamber 301.

[0102] S2. Open the pressure reducing valve - A 103. The inert gas in the bottle 101 is transported to the heating chamber 201 through the pipeline - A 102. The heating temperature of the heating wire 202 is controlled by the temperature controller - A 203, thereby heating the inert gas.

[0103] S3. Open the pressure reducing valve - C 205 and the exhaust valve. The heated inert gas is delivered to the nozzle 5 through the pipeline - C 204 and then sprayed out from the nozzle 5. The heated inert gas simulates high-temperature environmental damage on one side of the sample 6. The exhaust gas is discharged through the airflow discharge channel 306 to maintain a constant pressure. During the above process, the temperature data collected by the temperature sensor - A 7 is fed back to the data acquisition unit 4. Then, the data acquisition unit 4 adjusts the temperature based on the preset temperature automatic control temperature controller - A 203, and then changes the heating temperature through the heating wire 202. Finally, the heating temperature is automatically revised to the required temperature.

[0104] S4. After the specified time has elapsed, turn off the data acquisition device 4, temperature controller-A 203, pressure reducing valve-C 205 and exhaust valve. After the sample 6 has cooled to room temperature, take it out and then conduct morphological observation, physicochemical analysis and mechanical property testing. Finally, analyze its damage degree and obtain the results.

[0105] Example 2:

[0106] Please see Figure 5 Example 1 simulates high-temperature environmental damage to sample 6, while Example 2 simulates low-temperature environmental damage to sample 6. Correspondingly, the airflow processing mechanism 2 in this example uses a refrigeration system, which consists of a refrigeration chamber 206, an air compressor 207, a temperature controller-B 208, a pipe-D 209, and a pressure reducing valve-D 2010. Compared with Example 1, this example uses a refrigeration chamber 206 instead of a heating chamber 201, an air compressor 207 instead of a heating wire 202, a temperature controller-B 208 instead of a temperature controller-A 203, a pipe-D 209 instead of a pipe-C 204, and a pressure reducing valve-D 2010 instead of a pressure reducing valve-C 205. The connection method and installation position are the same as in Example 1. The difference from Example 1 is that only one air compressor 207 is needed for refrigeration.

[0107] It should be noted that the working principle of this embodiment is similar to that of embodiment 1. Embodiment 1 involves heating treatment, while embodiment 2 involves cooling treatment. Therefore, the working principle will not be described in detail here.

[0108] Example 3:

[0109] Please see Figure 6 and Figure 7 In Examples 1 and 2, the heating and cooling systems are separate. When simulating damage in high-temperature or low-temperature environments, two corresponding sets of equipment are required. These two sets of equipment occupy a large amount of space. Example 3 further optimizes Example 1 by integrating the heating and cooling systems, thus forming this example, as detailed below:

[0110] Please see Figure 7 The heating system is as described in Example 1 and remains unchanged;

[0111] Please continue reading. Figure 7 In this embodiment, the airflow loading mechanism 1 is additionally configured, which is composed of pipe-B 104 and pressure reducing valve-B 105. One end of pipe-B 104 is connected to the bottom of bottle 101 and communicates with it. Pressure reducing valve-B 105 is installed on pipe-B 104 to adjust the air supply flow and air pressure.

[0112] Please refer to the following: Figure 7 The refrigeration system in this embodiment has the same structure as in embodiment 2, but its connection method is different. Specifically, the other end of pipe-B 104 is connected to and communicates with one end of the refrigeration chamber 206. The air compressor 207 is fixed on the inner wall of one side of the refrigeration chamber 206 to achieve inert gas refrigeration. The thermostat-B 208 is fixed on the refrigeration chamber 206 and is electrically connected to the air compressor 207 and the data acquisition unit 4 to automatically adjust the refrigeration temperature. One end of pipe-D 209 is connected to and communicates with the other end of the refrigeration chamber 206, and the other end is connected to and communicates with pipe-C 204. The pressure reducing valve-C 205 is located in front of the connection between pipe-D 209 and pipe-C 204. The pressure reducing valve-D 2010 is installed on pipe-D 209 to adjust the air supply flow and air pressure. In this embodiment, the heating system and the refrigeration system are set in parallel.

[0113] In this embodiment, when simulating damage in a high-temperature environment, pressure reducing valves B 105 and D 2010 should always be kept closed.

[0114] In this embodiment, when simulating damage in a low-temperature environment, the pressure reducing valve-A 103 and the pressure reducing valve-C 205 should always be in the closed state.

[0115] It should be noted that sample 6 in Examples 1-3 uses a resin-based composite material;

[0116] This invention can quantitatively measure high / low temperature thermal damage, quantitative single-sided and local airflow thermal damage, and single-sided thermal cycling / thermal shock damage of resin-based composite materials. It can also accurately measure the dynamic changes of parameters such as temperature, strain, and thermal conductivity of resin-based composite materials. The system has a simple structure, stable and reliable operation, and good control effect on temperature and heat flow.

[0117] This invention can meet the testing requirements of different airflow loads from room temperature to 500℃. This system provides an effective test method for revealing the damage mode and failure mechanism of resin-based composite materials under single-sided high / low temperature and single-sided airflow thermal environment. It provides a reliable technical means for the service environment assessment of composite material components such as aero-engine casings, thermal conditioning plates, and blades, and has very important application value.

[0118] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A testing system for simulating one-sided thermal damage of resin-based composite materials, characterized in that, include: Airflow loading mechanism (1), which is used to transport inert gas; The airflow handling mechanism (2) has its input end connected to the output end of the airflow loading mechanism (1) and is used to achieve inert gas heating or cooling. The sealed clamping mechanism (3) has its input end connected to the output end of the airflow processing mechanism (2), which is used to fix the sample (6) and form a sealed environment; The nozzle (5) is located at the output end of the airflow treatment mechanism (2) and is positioned facing the sample (6). It is used to spray inert gas after heating or cooling. The detection unit, located on the sample (6), is used to collect temperature and pressure data, including a pressure sensor (8) and a pressure strain gauge (10). The pressure sensor (8) is located at one end of the sample (6) and is arranged within the spray range of the nozzle (5). It is used to collect the flow rate and pressure load of the measuring hot air flow on one side of the sample 6. A pressure strain gauge (10) is disposed at the end of the specimen (6) opposite to the pressure sensor (8) to monitor the deformation of the specimen (6). as well as A data acquisition unit (4) is mounted on the sealed clamping mechanism (3) and electrically connected to the detection unit, and is used to receive the temperature data and the pressure data.

2. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 1, characterized in that, The airflow loading mechanism (1) includes: Bottle (101), which is filled with inert gas; Pipe A (102), one end of which is connected to and communicates with the top of the bottle body (101); and Pressure reducing valve-A (103) is installed on the pipeline-A (102) and is used to regulate the gas supply flow rate and gas pressure.

3. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 2, characterized in that, The airflow handling mechanism (2) includes: A heating system used to heat inert gases.

4. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 3, characterized in that, The heating system includes: The heating chamber (201) is connected to and communicates with one end of the pipe-A (102) on one side of the heating chamber (201); Heating wires (202) are provided in two sets, symmetrically arranged on the inner walls of both sides of the heating chamber (201), and are used to achieve inert gas heating; Thermostat-A (203) is located on the heating chamber (201) and is electrically connected to the heating wire (202) and the data acquisition unit (4) to automatically adjust the heating temperature; Pipeline C (204) is located at and communicates with the other end of the heating chamber (201); and Pressure reducing valve-C (205) is installed on the pipe-C (204) and is used to regulate the gas supply flow rate and gas pressure.

5. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 2, characterized in that, The airflow handling mechanism (2) includes: A refrigeration system used to achieve refrigeration of inert gases.

6. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 5, characterized in that, The refrigeration system includes: The other end of the pipe-A (102) is connected to and communicates with one end of the cooling chamber (206); An air compressor (207) is disposed on the inner wall of one side of the refrigeration chamber (206) and is used to achieve inert gas refrigeration; Thermostat-B (208) is located on the refrigeration chamber (206) and is electrically connected to the air compressor (207) and the data acquisition unit (4) to automatically adjust the refrigeration temperature; Pipe-D (209), one end of which is connected and communicates with the other end of the cooling chamber (206); and Pressure reducing valve-D (2010), located on the pipe-D (209), is used to regulate the gas supply flow rate and gas pressure.

7. A test system for simulating one-sided thermal damage of resin-based composite materials according to claim 3 or 5, characterized in that, When the airflow processing mechanism (2) is a heating system, the nozzle (5) is located at the other end of the pipe-C (204); When the airflow handling mechanism (2) is a refrigeration system, the nozzle (5) is located at the other end of the pipe-D (209).

8. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 7, characterized in that, The sealed clamping mechanism (3) includes: Insulation and pressure chamber (301), wherein: When the airflow handling mechanism (2) is a heating system, the pipe-C (204) passes through the heat preservation and pressure holding chamber (301) and extends inward; When the airflow handling mechanism (2) is a refrigeration system, the pipe-D (209) passes through the heat-insulating and pressure-maintaining chamber (301) and extends inward; The sealing block (302) can movably seal one end of the heat-insulating and pressure-holding chamber (301) to form a sealed environment; An airflow discharge channel (306) is located at the bottom of and connected to the heat-insulating and pressure-maintaining chamber (301), and a discharge valve is provided on it for opening and closing; and A clamping assembly is provided in the heat-insulating and pressure-holding chamber (301) for fixing the sample (6).

9. The test system for simulating one-sided thermal damage of resin-based composite materials according to claim 2, wherein the airflow loading mechanism (1) further comprises: Pipe-B (104), one end of which is connected to and communicates with the bottom of the bottle body (101); as well as Pressure reducing valve-B (105) is installed on the pipeline-B (104) and is used to regulate the gas supply flow rate and gas pressure; The airflow handling mechanism (2) includes: A heating system, the input of which is connected to the other end of the pipe-A (102), is used to heat the inert gas; and A refrigeration system, the input of which is connected to the other end of the pipe-B (104), is used to achieve inert gas refrigeration, wherein: The heating system and the refrigeration system are connected in parallel.

10. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 9, wherein the heating system comprises: The heating chamber (201) is connected to and communicates with one end of the pipe-A (102) on one side of the heating chamber (201); Heating wires (202) are provided in two sets, symmetrically arranged on the inner walls of both sides of the heating chamber (201), and are used to achieve inert gas heating; Thermostat-A (203) is located on the heating chamber (201) and is electrically connected to the heating wire (202) and the data acquisition unit (4) to automatically adjust the heating temperature; Pipeline C (204) is located at and communicates with the other end of the heating chamber (201); and Pressure reducing valve-C (205) is installed on the pipeline-C (204) and is used to regulate the gas supply flow rate and gas pressure; The refrigeration system includes: The other end of the pipe-B (104) is connected to and communicates with one end of the cooling chamber (206); An air compressor (207) is disposed on the inner wall of one side of the refrigeration chamber (206) and is used to achieve inert gas refrigeration; Thermostat-B (208) is located on the refrigeration chamber (206) and is electrically connected to the air compressor (207) and the data acquisition unit (4) to automatically adjust the refrigeration temperature; Pipe-D (209), one end of which is connected to and communicates with the other end of the refrigeration chamber (206), and the other end of which is connected to and communicates with pipe-C (204); the pressure reducing valve-C (205) is located in front of the connection between pipe-D (209) and pipe-C (204); and Pressure reducing valve-D (2010), located on the pipe-D (209), is used to regulate the gas supply flow rate and gas pressure.

11. The testing system for simulating one-sided thermal damage of resin-based composite materials according to claim 1, wherein the detection unit comprises: Temperature sensor-A (7) is located at one end of the sample (6); as well as Temperature sensor-B (9) is located at the other end of the sample (6) and is positioned opposite to temperature sensor-A (7); The pressure sensor (8) is on the same horizontal plane as the temperature sensor-A (7).

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