A Damage Model Reflecting the Interaction between Delamination and Intralaminar Crack for Failure Analysis of FRP Laminates

被引:5
作者
Yun, Kumchol [1 ]
Kwak, Songhun [2 ]
Wang, Zhenqing [3 ]
Chang, Mengzhou [3 ]
Kim, Jonggun [4 ]
Liu, Jingbiao [3 ]
Ri, Cholsu [1 ]
机构
[1] Kim Il Sung Univ, Fac Mech, Pyongyang 950003, North Korea
[2] Kimchaek Univ Technol, Fac Mech Engn, Pyongyang 950003, North Korea
[3] Harbin Engn Univ, Coll Aerosp & Civil Engn, Harbin 150001, Heilongjiang, Peoples R China
[4] Kim Il Sung Univ, Informat Ctr, Pyongyang 950003, North Korea
来源
APPLIED SCIENCES-BASEL | 2019年 / 9卷 / 02期
基金
中国国家自然科学基金;
关键词
continuum damage mechanics; cohesive zone model; delamination; intralaminar crack; interaction; computational fracture mechanics; COHESIVE ZONE MODELS; WOVEN COMPOSITES; MATRIX CRACKS; PART II; SIMULATION; FRACTURE; IMPACT; IMPLEMENTATION; PROPAGATION; INITIATION;
D O I
10.3390/app9020314
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
In this paper, a progressive damage model reflecting the interaction between delamination and intralaminar crack is developed to predict fracture behaviors and the ultimate load-bearing ability of the fiber-reinforced polymer laminates subject to quasi-static load. Initiation and evolution of intralaminar crack in composites are modeled using a continuum damage mechanics model, which has the capability to reliably predict the discrete crack direction by introducing the crack direction parameter while analyzing the multi-failure of FRP composites. Delamination is modeled using a cohesive zone method with the mixed bilinear law. When the continuum damage model and cohesive zone model are used together, the interactive behavior between multiple failure mechanisms such as delamination induced by matrix cracking often seen in the failure of composite laminates is not generally captured. Interaction between delamination and intralaminar crack in FRP composite structures is investigated in detail and reflected in a finite element analysis in order to eliminate the drawbacks of using both models together. Good agreements between numerical results and experimental data are obtained.
引用
收藏
页数:18
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