High-temperature tensile test fixture for structural simulation parts with online observation and full strain pick-up

Abstract

The present invention relates to a clamper for carrying out tensile test on a structure simulation member under a high temperature condition. The whole clamper comprises an upper clamper and a lower clamper, wherein the main bodies of the upper clamper and the lower clamper are rectangular parallelepiped plate type chucks, the chuck is made of a high-temperature alloy material, the lower portion of the upper chuck is provided with a dovetail type clamping groove, the upper portion of the lower chuck is provided with a clamping groove adapted to the geometric shape of a to-be-researched structure simulation member, and the upper chuck and the lower chuck are respectively provided with a hole for installing the clamper on the outside-furnace clamper of a tensile test machine. According to the present invention, the high-temperature tensile test clamper is used for the high-temperature heating furnace with the observation window so as to meet the online observation and full-strain information picking of the structure simulation member; and the upper chuck and the lower chuck are subjected to asymmetrical structure design, wherein the upper chuck has the large size in the width direction compared to the lower chuck, the size of the clamping groove is correspondingly increased, and the clamping groove of the lower chuck is designed to be adapted to the geometric shape of the to-be-researched structure simulation member, such that the mechanical properties of different parts made of various composite material can be tested.

Description

technical field [0001] The invention relates to a high-temperature tensile test fixture for structural simulation parts capable of on-line observation and full-strain pick-up, and belongs to the technical field of material mechanical property test devices. Background technique [0002] The traditional tensile test is a material standard part test, but for woven composite materials, after the parts with a certain structure are prepared, the fiber weaving arrangement is often different from the standard part, and the local properties of the material are also different from the standard part. Therefore, in On the basis of standard parts testing, further evaluation of structural simulation parts is required. In addition, it is very necessary to be able to observe and pick up the full-field strain information in real time when testing the structural simulation parts. When the high-temperature tensile test fixture in the present invention is used in conjunction with a high-temper...

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to design a high-temperature tensile test fixture for structural simulation parts that can be observed online and picked up full strain, to solve the problem that the test piece is in a completely closed state during the experiment and cannot be observed online and picked up full strain information

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