Numerical simulation of impact and compression after impact of asymmetrically tapered laminated CFRP

被引：24

作者：

Abdulhamid, Hakim ^{[1
,2
]}

Bouvet, Christophe ^{[1
]}

Michel, Laurent ^{[1
]}

Abdissiere, Jacky ^{[2
]}

Minot, Clement ^{[2
]}

机构：

[1] Univ Toulouse, ICA, ISAE, 10 Ave Edouard Belin,BP 54032, F-31055 Toulouse 4, France

[2] Sogeti High Tech, Aeropk,3 Chemin Laporte, F-31300 Toulouse, France

来源：

INTERNATIONAL JOURNAL OF IMPACT ENGINEERING | 2016年 / 95卷

关键词：

Composite; Ply drop-off; Impact; Compression after impact; Finite element simulation; LOW-VELOCITY IMPACT; DISCRETE INTERFACE ELEMENTS; FAILURE MECHANISMS; FIBER FAILURE; DROPPED PLIES; COMPOSITES; STRENGTH; DELAMINATION; DAMAGE; PREDICTION;

D O I：

10.1016/j.ijimpeng.2016.05.002

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

This paper presents a numerical simulation of impact and compression after impact (CAI) of a tapered composite laminate using a discrete ply model. Three types of damage: matrix cracking, delamination and fiber rupture are considered in the model. The presence of ply drop-off generates some discontinuities in the stress field and therefore adds difficulties to the simulation. Analyses of numerical results are performed to understand the damage and failure mechanisms in both tests. Numerical results in terms of force-displacement curves, delamination shape, CAI displacement field and residual strength are compared with experimental data. Impact simulation is in good correlation with the tests. CAI strength is under predicted and depends on quality of the meshing of the transition region. This study highlights the importance of modeling intra-ply matrix cracking for impact simulation. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：154 / 164

页数：11

共 37 条

[1] Influence of internally dropped-off plies on the impact damage of asymmetrically tapered laminated CFRP [J].