Experimental and numerical investigation of Mode-I & Mode-II fatigue crack growth in unidirectional composites using XIGA-CZM approach

被引：15
|
作者：
Kaushik, Vikas [1 ]
Ghosh, Anup [1 ]
机构：
[1] Indian Inst Technol Kharagpur, Aerosp Engn Dept, Kharagpur 721302, W Bengal, India
来源：
INTERNATIONAL JOURNAL OF FATIGUE | 2020年 / 134卷
关键词：
Fibre bridging effect; Cohesive zone modelling (CZM); Fatigue crack growth; Extended Isogeometric Analysis (XIGA); Fractography; DELAMINATION PROPAGATION; CARBON/EPOXY COMPOSITE; ISOGEOMETRIC ANALYSIS; DRIVEN DELAMINATION; SIMULATION METHOD; FRACTURE; METHODOLOGY; PREDICTION; ELEMENTS;
D O I：
10.1016/j.ijfatigue.2019.105461
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
This article presents an investigation of interlaminar fatigue crack growth in unidirectional (AS4/914) composites. Influence of fibre bridging on Mode-I interfacial fatigue properties is investigated under increased loading displacement and constant R-ratio. Significant shift is Paris law resistance curves represents the influence of fibre bridging in DCB specimen. Mode-II fatigue tests are carried out on precracked ENF specimens. A new set of interfacial fatigue properties are generated and incorporated into numerical formulation. Numerical simulations are carried out with combined framework of XIGA-CZM. Numerical prediction of crack propagation shows good agreement with the experimental results. Fractography is carried out using SEM.
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页数：12
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