System for testing fatigue in high/low temperature environment

Abstract

A system for testing the fatigue in a high / low temperature environment comprises a fatigue testing machine, an adapter, a sample clamp, a high / low temperature environment box, locating pins, a liquid nitrogen container and a sample, wherein the sample clamp is installed on the fatigue testing machine through the adapter, the sample is connected with the sample clamp and is located through the locating pins penetrating through the sample clamp and locating holes of the sample, the high / low temperature environment box wraps the sample clamp and the sample inside, the liquid nitrogen container and the high / low temperature environment box are connected to achieve the low temperature environment, wherein the fatigue testing machine, the adapter, the sample clamp, the locating pins and the sample are sequentially connected in series together. The system for testing the fatigue in the high / low temperature environment is simple in structure convenient to operate, and used to test the fatigue property in the high / low temperature environment, and the test result has important significance for defining the fatigue of a material or structure in the complicated meteorological environment.

Description

technical field

[0001] The invention relates to a fatigue test testing system under high / low temperature environment, and belongs to the technical field of test and test. Background technique

[0002] Engineering materials and structures are subjected to alternating loads during use, and fatigue damage may occur. In order to ensure their safety, it is necessary to test their fatigue performance. After years of technological development, a complete fatigue performance testing standard has been formed; however, engineering Materials and structures are also often used in cold or hot environments, therefore, their fatigue performance in high / low environments must be measured to evaluate their fatigue life in high / low temperature environments. At present, the fatigue performance testing technology under high / low temperature environment is still immature at home and abroad, and there is no effective fatigue test system under high / low temperature environment. The high / low temperat...

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