Multi-factor coupling accelerated aging test method for carbon fiber reinforced resin matrix composites
A technology for strengthening resin matrix and composite materials, which can be used in material inspection products and other directions, and can solve problems such as lack of research
Active Publication Date: 2015-09-30
HARBIN INST OF TECH
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Therefore, a lot of manpower, material resources and financial resources have been invested in this research, but the current research in this area is still very lacking.
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[0013] The present invention will be further described in detail below: this embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation manners are given, but the protection scope of the present invention is not limited to the following embodiments.
[0014] This embodiment provides a carbon fiber reinforced resin matrix composite material multi-factor coupling accelerated aging experiment method, the steps are as follows:
[0015] Three to ten specimens of carbon fiber reinforced resin-based composite materials with a length of 50~200mm, a width of 5~50mm and a thickness of 0.1~10mm were installed and fixed on the fixture respectively; the door of the damp-heat aging box was closed, and the temperature in the damp-heat aging box was adjusted. Temperature and humidity, temperature range: -50℃~300℃, humidity range: 5%~100%, temperature and humidity reach the set value, turn on the UV lamp, the power of the UV lamp is 1~100...
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The invention provides a multifactor-coupling accelerated aging test method and belongs to the technical field of aging test methods. The multifactor-coupling accelerated aging test method comprises the steps of: respectively arranging and fixing three to ten material test pieces on clamps; adjusting the temperature and the humidity in a wet-heat aging oven; turning on an ultraviolet lamp with power of 1-100W and a wavelength of 220-400nm after the temperature and the humidity achieve preset values; adjusting a hydraulic cylinder within a tension range of 1N-980N, a pressure range of 1N-980N and a bending stress range of 1N-490N; and during a sampling period of 1-180 days, detecting the aging situation. The multifactor-coupling accelerated aging test method is beneficial to the revelation of a failure mechanism of a fiber composite material under the influences of a storage environment as well as the research on the relationship between the storage environment and an acceleration failure. Therefore, a failure mechanism model and a performance evaluation method of a carbon fiber composite material in the storage environment are established, and a theoretical basis is provided for the evaluation on the storage performance of the composite material, life predication and life prolonging design.
Description
Technical field [0001] The invention relates to a multi-factor coupling accelerated aging experiment method, belonging to the technical field of aging experiment methods. Background technique [0002] Fiber-reinforced resin-based composite materials are a series of high-performance composite materials prepared by using resin as the matrix and fiber as the reinforcement, using advanced composite material molding processing methods. It has the advantages of high specific strength and specific modulus, good fatigue resistance, good fracture safety, strong shock absorption, good high temperature performance, and strong designability. However, fiber reinforced resin matrix composites are the same as other engineering materials. Use under certain environmental conditions. Common environmental conditions include temperature, humidity, stress, etc. The effect of one environmental condition or multiple environmental conditions will cause the performance of the composite material to chan...
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IPC IPC(8): G01N33/44
Inventor 苗常青卫剑征刘波谭惠丰
Owner HARBIN INST OF TECH