Plastic high and cold atmospheric environment-tensile load coupling acceleration test method

Abstract

The invention discloses a plastic high and cold atmospheric environment-tensile load coupling acceleration test method. The method adopts tensile strength as an evaluation index and takes a high and cold atmospheric outdoor environment static exposure test result as a reference to contrastively analyze the acceleration of the the load coupling acceleration test method in three aspects, namely, alternating circulation tests of a static tensile load loading test, a dynamic tensile fatigue loading test and a static exposure test in the alpine atmosphere outdoor environment in the alpine atmosphere outdoor environment, the dynamic tensile fatigue loading test in the high and cold atmosphere outdoor environment and the static tensile load loading test in the high and cold atmosphere outdoor environment relative to the static exposure test in the high and cold atmosphere outdoor environment. The degradation influence of the coupling effect of aging and tensile load on the plastic performance in the high and cold atmosphere environment is truly reflected, and the defects that a traditional laboratory acceleration test is difficult to truly reflect the comprehensive influence of aging of various environmental factors of the high and cold atmosphere, and a natural environment static exposure test cannot reflect the influence of the tensile load are overcome.

Description

technical field [0001] The invention relates to the technical field of environmental testing, in particular to a plastic alpine atmospheric environment-tensile load coupled accelerated testing method. Background technique [0002] With the continuous improvement of equipment / product lightweight development requirements, plastics are widely used in equipment / product development and production due to their high specific strength, light weight, excellent mechanical properties, easy processing, and low cost. A large number of advanced plastics are used in the load-bearing parts of equipment / products, and "replacing steel with plastic" has become an increasingly common phenomenon. [0003] As a load-bearing part, plastics may encounter more complex working conditions during the entire life cycle of equipment / products, especially in extremely harsh environments such as alpine atmospheric environments, where they are not only subjected to aging due to various atmospheric environmen...

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Problems solved by technology

[0005] Aiming at the deficiencies in the above-mentioned prior art, the present invention proposes a plastic alpine atmospheric environment-tensile load coupling accelerated test method, which truly reflects the degradation effect of aging and tensile load coupling in the alpine atmospheric environment on the performance of

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