Internal mechanical behavior detection method in material compression process
A technology of compression process and detection method, applied in measuring devices, scientific instruments, analytical materials, etc., can solve problems such as difficult to measure internal mechanical behavior, unclear research on material compression molding mechanism, etc., to achieve simple operation and good interchangeability Effect
Inactive Publication Date: 2021-09-28
SHIHEZI UNIVERSITY
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Problems solved by technology
[0004] As mentioned above, in order to solve the problem in the prior art that the internal mechanical behavior of the bulk material is difficult to measure during the compression process, resulting in unclear research on the mechanism of material compression molding, the present invention proposes a method for the internal mechanical behavior of material compression Detection method, with auxiliary power unit, to measure the mechanical behavior of bulk materials during compression
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[0025] The detection of the internal mechanical behavior during the material compression process specifically includes the following steps.
[0026] (1) Build the compression device.
[0027] In order to measure the internal mechanical behavior of the material during the material compression process, the compression device 2 and the supporting power output device 1 are built, as shown in the attached figure 1 , 2 As shown, wherein the power output device 1 can be a simple device for building; the compression device 2 mainly includes a moving frame 201, a load sensor 202, a fixed plate 203, a compression chamber 204, a thin film pressure sensor 205, a moving plate 206, and a compression plate 207 , ejector rod A208, support rod 209, bottom plate 210, ejector rod B211 laser displacement sensor 212, measurement and control system 3 principle diagram as attached image 3 As shown, it mainly includes various sensors, transmitters, micro control units and computers.
[0028] (2) ...
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The invention belongs to the technical field of material testing, and particularly relates to an internal mechanical behavior detection method in a material compression process. According to the method, mechanical behaviors of materials in the compression process are dynamically monitored by means of various sensors and a micro control unit, thin film pressure sensors are pasted to a compression plate and a movable plate of a compression device, and a load sensor is connected with a fixed plate and can measure pressure signals; the displacement sensor monitors the displacement condition of the movable plate, the displacement condition is transmitted to the micro control unit for processing through a measurement and control system, and the computer outputs data, so that dynamic monitoring of internal mechanical characteristics in the material compression process is realized, and reference is provided for research and analysis of the material compression process and internal mechanical behaviors of the compressed material. The method provided by the invention is simple to operate, has better interchangeability, can effectively measure the internal and external mechanical behaviors in the compression process by matching with an existing power device, and has important significance for researching the compression molding mechanism and rheological behaviors of materials, especially agricultural fiber materials.
Description
technical field [0001] The invention belongs to the technical field of material testing, in particular to a method for detecting internal mechanical behavior in a material compression process. Background technique [0002] my country is a large agricultural country with rich resources of various bulk materials. Compression molding of materials is an effective way to solve the transportation and storage of such materials. In order to study the mechanism of material compression molding, it is necessary to measure the stress and strain in the process of material compression, which is the key to the study of material compression molding. At present, only a small amount of equipment and instruments can complete the compression molding of materials with large stroke and high compression ratio. The compression device and detection method can only measure the stress of the material surface during the compression process, and the internal stress and strain are difficult to measure. ...
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IPC IPC(8): G01N3/08
CPCG01N3/08G01N2203/0003G01N2203/0019G01N2203/0075G01N2203/0641G01N2203/0676G01N2203/0682
Inventor 张宏文王军王蒙王磊张晨旭谷艳清魏喜梅蔡云霄李海洋杜欣田
Owner SHIHEZI UNIVERSITY