Test device for biaxial stress fatigue loading of flexible fiber enhanced thin film

Abstract

The invention provides a test device for biaxial stress fatigue loading of a flexible fiber enhanced thin film. The device comprises: a rack, an upper warp and wept support beam, a vertical stand column, a vertex angle reinforced joint, a middle warp and wept supporting cross beam, a biaxial tensile sample, a sample fixing clamping head, a warp and wept sample fixing clamping head, warp and weft position and fitting adjuster, an upper cross beam positioner, a tensile loading transfer belt, a warp and weft tensile loading transfer belt, a warp and weft cross beam transfer belt stopper, a warp and weft loading transfer plate, a fatigue load loading piece, a warp and weft fatigue load weight, a warp and weft load connecting rope, a warp and weft load elastic rope, a fatigue load loading piece, a fatigue motor, a variable load cam, an elastic rope fixing piece, a center elastic rope fixing ball, a central fixing column; According to the test device for biaxial stress fatigue loading of theflexible fiber enhanced thin film, designed structure is simple in structure, convenient in arrangement, easy in maintenance and low in cost.

Description

technical field [0001] The invention belongs to the field of mechanical measurement and designs a biaxial stress fatigue loading test device for a flexible fiber reinforced film. The test device can simultaneously load non-interfering stress loads on the warp and weft directions of the flexible reinforced film material to measure its fatigue characteristics in biaxial stretching. The designed device can load the required basic stress and cyclical stress for the warp and weft directions of the flexible film material sample. The structure of the test device is simple, the test operation is simple and easy to use, it can simulate the biaxial fatigue characteristics of flexible fiber reinforced membrane materials under real load conditions, and provides a simple and reliable way for designing and testing the fatigue characteristics of flexible fiber reinforced membrane materials . Background technique [0002] In the process of new product structure design and new material dev...

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Problems solved by technology

The structure of the system designed in this patent is relatively complex, and its test method is not suitable for flexible fiber-reinforced films

First of all, it is difficult to simulate the real working conditions of the flexible film material by manufacturing defects on the test material. In addition, if the fiber-reinforced flexible film material is artificially manufactured in advance, the strength of the defect will be greatly reduced, and the material will basically be in failure. state, this pre-destructive test method is not suitable for flexible fiber reinforced film materials

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