中国安全科学学报 ›› 2019, Vol. 29 ›› Issue (6): 104-108.doi: 10.16265/j.cnki.issn1003-3033.2019.06.017

• 安全工程技术科学 • 上一篇    下一篇

聚合物基复合材料老化曲线快速测试方法

傅惠民 教授, 隗依岸, 文歆磊   

  1. 北京航空航天大学 小样本技术研究中心,北京 100191
  • 收稿日期:2019-02-20 修回日期:2019-05-10 发布日期:2020-11-02
  • 作者简介:傅惠民(1956—),男,浙江遂昌人,博士,“长江学者”特聘教授,主要从事小样本信息技术、信号分析与处理、数据融合方法、可靠性及估计理论等方面的研究。E-mail:fuhuimin@263.net。
  • 基金资助:
    工信部2018 年智能制造综合标准化项目; 国家重点基础研究发展计划(2012CB720000)。

A rapid determination method for aging curve of polymer matrix composites

FU Huimin, WEI Yian, WEN Xinlei   

  1. Research Center of Small Sample Technology, Beihang University, Beijing 100191, China
  • Received:2019-02-20 Revised:2019-05-10 Published:2020-11-02

摘要: 为解决聚合物基复合材料老化试验时间长费用高的问题,通过研究老化曲线特点,建立一种老化曲线强度下降阶段的三参数指数函数模型,在此基础上提出聚合物基复合材料老化曲线快速测试方法,并通过仿真模拟和工程实例验证该方法。研究表明:该方法能够根据老化强度快速下降阶段的试验数据或加上少量缓慢下降阶段的试验数据,得到强度下降阶段的整条老化曲线,能很好地逼近真值或者偏于保守,工程上安全可用;与传统方法相比,可以节省2/3左右的试验时间和成本。

关键词: 聚合物基复合材料, 老化曲线, 快速测试, 寿命预测, 可靠性

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

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