Test piece installation mechanism and test device of dynamic perforation test device
A technology of an installation mechanism and a test device, which is applied in the direction of measuring devices, using a single impact force to test the strength of materials, instruments, etc., can solve the problems of large influence of the sensor signal, accidental damage of the initial load of the sensor part, and inability to perform effective measurement, and achieves the goal of manufacturing The effect of low cost and simple structure
Inactive Publication Date: 2019-01-08
TSINGHUA UNIV
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Problems solved by technology
If the sensor is arranged at the loading end, the impact of the punch inertial force generated by sudden loading on the sensor signal is too large, so that effective measurement cannot be performed
If the sensor is arranged at the fixed end, the fixture needs to reserve enough travel for the punch. If the sensor is arranged outside the loading stroke, the too long fixture will easily cause excessive initial load on the sensor part and cause accidental damage
Method used
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[0027] The present invention will be further described below in conjunction with accompanying drawing of description:
[0028] as attached Figure 1~7 As shown, a dynamic perforation test device includes an installation mechanism for installing a test piece and a loading mechanism for perforating and loading the test piece 1 .
[0029] The specimen mounting mechanism, such as Figure 1~6 As shown, it includes a base and an installation unit fixed to the base for installing the test piece 1. The installation unit includes a support plate 2 and a splint 3 detachably connected to the support plate 2. The test piece 1 is located between the support plate 2 and the splint. 3 and clamped by the support plate 2 and the splint 3, the specimen installation mechanism also includes a connecting plate 4 connected to the base and the support plate 2 at both ends.
[0030] The support plate 2 and the splint 3 are connected by bolts and nuts.
[0031] The base includes a base body and a m...
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The invention relates to a dynamic perforation test device and a test piece installation mechanism thereof. The test piece installation mechanism comprises a base and an installation unit. The installation unit is fixed to the base and used for installing a test piece. The installation unit comprises a supporting plate and a clamping plate detachably connected with the supporting plate. The test piece is located between the supporting plate and the clamping plate and clamped by the supporting plate and the clamping plate. The test piece installation mechanism further comprises a connecting plate, wherein the two ends of the connecting plate are connected with the base and the supporting plate respectively. According to the test device, by the adoption of the test piece installation mechanism, the small perforation load, particularly the perforation load of a film material can be measured.
Description
technical field [0001] The invention belongs to the field of material mechanical performance testing and characterization, and is used in industries such as automobiles and aviation, and in particular relates to a test piece installation mechanism and a test device of a dynamic perforation test device. Background technique [0002] For the dynamic perforation test of materials, the force load sensor can usually be arranged at the dynamic loading end or the fixed end. Compared with common materials such as metals or polymers, thin-film materials have a thinner thickness and lower load, so the location of the sensor arrangement is very weak. If the sensor is arranged at the loading end, the impact of the punch inertial force generated by sudden loading on the sensor signal is too great, so that effective measurement cannot be performed. If the sensor is arranged at the fixed end, the fixture needs to reserve enough travel for the punch. If the sensor is arranged outside the l...
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IPC IPC(8): G01N3/02G01N3/30
CPCG01N3/02G01N3/30G01N2203/0435
Inventor 夏勇蒋旭乾马令晨周青
Owner TSINGHUA UNIV