A rapid determination method for aging curve of polymer matrix composites

doi:10.16265/j.cnki.issn1003-3033.2019.06.017

Abstract

Abstract: In order to address the issue of long duration and high cost of aging tests for polymer matrix composites, a three-parameter exponential model for strength decline stage of aging curve was established by investigating the regularity of aging curves. A rapid determination method for aging curve of polymer matrix composites was proposed and it was then verified by simulations and real applications. The results show that the complete aging curve of strength decline can be obtained by this method with the test data from fast decline stage, or adding a little of test data from slow decline stage. The obtained aging curve can approach the true value, or be more conservative, which is safe and useable in engineering, and compared with the traditional approach, it can reduce about two thirds of test time and costs.

Key words: polymer matrix composites, aging curve, rapid determination, lifetime prediction, reliability

CLC Number:

X924.3

FU Huimin, WEI Yian, WEN Xinlei. A rapid determination method for aging curve of polymer matrix composites[J]. China Safety Science Journal, 2019, 29(6): 104-108.

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