Clamp for plate compression-shear fracture analysis sample, method thereof and sample

Abstract

The invention relates to the technical field of material mechanical property testing equipment, in particular to a clamp for a plate compression-shear fracture analysis sample, a method thereof and asample. The clamp comprises a bottom plate, two rear clamping plates and two front clamping plates. The two rear clamping plates are symmetrically arranged at the ends of the upper bottom plate and the lower bottom plate respectively, and the two front clamping plates are symmetrically arranged at the ends of the two rear clamping plates respectively. During a test, the front clamping plates, thetreated sample and the rear clamping plates are locked together; the rear clamping plates are connected with an annular clamp body on the bottom plate through two pulleys to form a slidable connectingbody; and the testing angle is adjusted and locked, then the bottom plate is connected to a universal testing machine, a three-dimensional digital image related measuring system is adopted for recording the deformation process of the sample, and when it is observed that the sample is broken, the plate compression-shear fracture test can be completed. The device provided by the invention can realize fracture analysis of multiple compression-shear stress states by adopting a single sample, and ensures that the sample has large deformation and stable and uniform deformation.

Description

technical field [0001] The invention relates to the technical field of material mechanical property testing equipment, in particular to a clamp for a sample for compression-shear fracture analysis of a plate, a method and a sample thereof. Background technique [0002] In the 21st century, my country's automobile industry is one of the fastest growing industries in recent years. However, with the improvement of environmental, energy, safety and other requirements, reducing fuel consumption and waste emissions through lightweight automobile materials has gradually become a current research focus. The extensive demand for high-performance and complex parts in the automotive industry is also a huge challenge to lightweight manufacturing processes. In the forming process of high-performance complex parts, the material will go through a variety of processing processes, such as rolling, extrusion, bending, deep drawing, flanging and blanking. However, during these complex forming...

AI Technical Summary

Problems solved by technology

For sheet metal, there are many challenges in studying the failure behavior in the compressive and shear dominant stress intervals

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