A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE

JIA YunLong; XU Lin; XIANG Bin

doi:10.16579/j.issn.1001.9669.2021.05.035

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A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE

更新时间：2022-09-22

- A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE
- Journal of Mechanical Strength Vol. 43, Issue 5, Pages: 1262-1266(2021)
- 作者机构：
  
  1. 航天行云科技有限公司
  2. 武汉理工大学高性能船舶技术教育部重点实验室
- 作者简介：
- 基金信息：
- DOI：10.16579/j.issn.1001.9669.2021.05.035
  CLC：
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JIA YunLong, XU Lin, XIANG Bin. A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE. [J]. 43(5):1262-1266(2021)
DOI：

JIA YunLong, XU Lin, XIANG Bin. A CORRECTED COHESIVE ZONE MODEL IN THE INTERLAMINAR FRACTURE OF COMPOSITE. [J]. 43(5):1262-1266(2021) DOI： 10.16579/j.issn.1001.9669.2021.05.035.

摘要

针对复合材料的分层现象,考虑初始断裂韧性和裂尖材料损伤的影响,提出了一种修正内聚力模型,并给出了内聚力模型参数确定的方法。根据相关试验,采用该方法,获得了考虑初始断裂韧性和裂尖材料损伤的内聚力模型,基于该内聚力模型对试验进行了仿真分析。结果表明,与仅考虑初始断裂韧性获取的内聚力模型相比,考虑初始断裂韧性和裂尖材料损伤的内聚力模型,可以更加准确地模拟复合材料的分层现象。

Abstract

In order to consider both material damage of the crack tip and the initial fracture toughness,a corrected cohesive zone model（ CZM） that considers the influence of material damage of the initial crack propagation has been proposed. The corrected cohesive zone mode obtained from the end notch flexure（ ENF） test has been implemented in the ABAQUS/Standard.The results show that it is necessary to consider both material damage of the crack tip and the initial fracture toughness,and the corrected cohesive zone mode can accurately simulate the crack propagation.

关键词

复合材料内聚力模型裂纹扩展数值仿真

Keywords

CompositeCohesive zone modeCrack propagationFEM

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