China Plastics ›› 2020, Vol. 34 ›› Issue (11): 86-93.DOI: 10.19491/j.issn.1001-9278.2020.11.015

• Review • Previous Articles     Next Articles

Research Progress in Fracture Mechanics Evaluation Methods for Polymer Materials

LIU Penghui, YANG Huahao, HU Xiaoyi, ZHE Dongmei()   

  1. Beijing Research Institute of Chemical Industry,Sinopec,Beijing 100013,China
  • Received:2020-05-25 Online:2020-11-26 Published:2020-11-20

Abstract:

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.

Key words: fracture toughness, linear elastic fracture mechanics, elastic plastic fracture mechanics, essential fracture work

CLC Number: