China Plastics ›› 2025, Vol. 39 ›› Issue (1): 104-111.DOI: 10.19491/j.issn.1001-9278.2025.01.017

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Research progress in effect of defects on mechanical properties of continuous⁃fiber⁃reinforced composites

MA Fengan1, ZHAO Guanghui1(), TIAN Cheng2, JIA Yuzhe1, LIU Tao1   

  1. 1.School of Mechanical Engineering,Southwest Petroleum University,Chengdu 610500,China
    2.Sichuan Baoshi Machinery Special Vehicle Co,Ltd,Guanghan,618300,China
  • Received:2024-04-06 Online:2025-01-26 Published:2025-02-14

Abstract:

This paper analyzed the common defects and their causes in the continuous⁃fiber⁃reinforced ⁃polymer⁃matrix composites and reviewed the latest research progress in the non⁃destructive testing methods of defects and their effect on the mechanical properties of the composites. In the aspect of defect detection, improving detection accuracy, accelerating detection data processing, and developing detection technology for special defects are the hotspots of the current research. The effect of macroscopic defects on the mechanical properties of the composites was qualitatively and quantitatively analyzed. The influencing factors mainly included the in⁃plane size, buried depth and shape of delamination defects, porosity, distribution concentration and shape of pore defects, and the direction, convexity and wrinkle angle of wrinkle defects. This paper provides a basis for the design and reliability evaluation of fiber⁃reinforced⁃polymer⁃matrix composites.

Key words: continuous?fiber?reinforced?polymer?matrix composites, defect, detection method, mechanical property

CLC Number: