聚合物基复合材料老化曲线快速测试方法

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.