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Test fixture for compression shear of symmetric sandwich structure

A technology of sandwich structure and test fixture, which is used in measuring devices, instruments, scientific instruments, etc., to achieve the effect of simple and convenient testing and ensuring accuracy

Active Publication Date: 2012-09-19
邳州市城洁保洁有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies and problems existing in the existing standards, related patents and literature, the purpose of the present invention is to invent and design a special symmetrical sandwich structure compression shear test for the samples that adopt the symmetrical compression shear test. fixture

Method used

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  • Test fixture for compression shear of symmetric sandwich structure
  • Test fixture for compression shear of symmetric sandwich structure
  • Test fixture for compression shear of symmetric sandwich structure

Examples

Experimental program
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Embodiment Construction

[0017] Refer to attached figure 2 And attached image 3 , a symmetrical sandwich structure compression shear test fixture is mainly composed of a compression shear indenter assembly 12, a test sample assembly 13, eight sets of connecting locking devices 14 and a base assembly 15.

[0018] Refer to attached figure 2 to attach Figure 4 , the base assembly 15 consists of two bases to fix the sample assembly device 21, two tension plates 22, two hexagon socket bolts 23, a scale 24, a hex nut 25, a connecting shaft 26, four studs 27, four A wing nut 28, a T-shaped groove base 30, two square nuts 31 and a knurled round nut 32 are formed; the connecting shaft 26 is threaded with the T-shaped groove base 30, and then fixed by a hex nut 25; The stud 27 is fixed in the threaded hole of the base fixed sample assembly device 21, then the base fixed sample assembly device 21 is placed in the groove of the T-shaped slot base 30, and the square nut 31 is placed in the slot hole of the ...

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Abstract

The invention provides a test fixture for compression shear of a symmetric sandwich structure, which belongs to the field of sandwich structure material test fixtures and aims to solve the problems of asynchronous manual indication of a deformation gauge and compression shear force value data and to-be-converted testing machine values in current standards and patents as well as poor stability and inconvenient alignment of a simple symmetric fixture. The test fixture disclosed by the invention is mainly composed of a compression shear pressure head component, a testing sample component, a connecting and locking device and a base component; the testing sample component is formed in a method that a pair of testing samples are symmetrically bonded to a sample group middle bonding board and a pair of sample sticking boards; the connecting and locking device is used for connecting the testing sample component with the base component; a locking head can be moved horizontally in a compression shear test process; the position of a base fixing sample component device of the base component can be regulated through an inner hexagon bolt; stability of the base fixing sample component device is ensured; and the testfixture is suitably used for compression shear tests of the sandwich structure materials such as honeycomb paperboards and aluminum honeycomb boards.

Description

technical field [0001] The invention relates to a sandwich structure material test fixture, in particular to a symmetrical sandwich structure compression shear test fixture. Background technique [0002] According to the national standard (GB / T 1455-2005 sandwich structure or core shear performance test method), the sandwich structure material needs to use the test fixture when performing the compression shear test. Before the test, the test material and the fixture are bonded together. The two dial indicators installed on the fixture are adjusted to zero, and then tested on the universal testing machine. The utility model patent (ZL201120160447.7, 2011.05.11, a sandwich structure compression shear test fixture for quick replacement of samples) has improved the compression shear fixture structure in the standard, and the sandwich structure material compression shear test fixture The part bonded to the sample is designed as a detachable assembly structure, including 2 sets o...

Claims

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Application Information

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IPC IPC(8): G01N3/04
Inventor 温时宝于广水宫兆睿
Owner 邳州市城洁保洁有限公司
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