高分子材料断裂力学评价方法研究进展

简要介绍了线弹性断裂力学、弹塑性断裂力学和基本断裂功这3种方法的理论背景和前提假设、材料参数的试验测试方法和计算过程、试样预制裂纹对测试结果的影响以及近些年在高分子材料上的应用研究进展，并对3种研究方法的应用范围和特点，具体实用效果进行了对比分析。

Research Progress in Fracture Mechanics Evaluation Methods for Polymer Materials

This paper introduced the fracture mechanics theory and three relevant research methods， including the linear elastic fracture mechanics， elastic plastic fracture mechanics and essential work of fracture. The theoretical background and premise of these three methods， the test method and calculation process of material parameters， the effect of precrack on test results， and the research progress in the application of polymer materials in recent years were also briefly introduced. The application range and characteristics of these research methods and the specific practical effects were analyzed comparatively.