Article (Scientific journals)
Finite element modelling of composite structures under crushing load
Chiu, Louis N.S.; Falzon, Brian G.; Boman, Romain et al.
2015In Composite Structures, 131, p. 215–228
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Keywords :
Damage mechanics; Finite element analysis; Non-linear behaviour; Crushing response; Energy absorption; Structure failure
Abstract :
[en] This paper details the theory and implementation of a composite damage model, addressing damage within a ply (intralaminar) and delamination (interlaminar), developed for the simulation of the crushing of laminated composite structures. It includes a more accurate determination of the characteristic length to achieve mesh objectivity in capturing intralaminar damage consisting of matrix cracking and fibre failure, a load-history dependent material response, an isotropic hardening nonlinear matrix response, as well as a more physically-based interactive matrix damage mechanism. The developed damage model requires a set of material parameters obtained from a combination of standard and non-standard material characterisation tests. The fidelity of the model mitigates the need to manipulate, or “calibrate”, the input data to achieve good agreement with experimental results. This intralaminar damage model was implemented as a VUMAT subroutine, and used in conjunction with an existing interlaminar damage model, in Abaqus/Explicit. This approach was validated through the simulation of the crushing of a cross-ply composite tube with a tulip-shaped trigger, loaded in uniaxial compression. Despite the complexity of the chosen geometry, excellent correlation was achieved with experimental results.
Disciplines :
Materials science & engineering
Mechanical engineering
Author, co-author :
Chiu, Louis N.S.;  Monash University > Department of Mechanical and Aerospace Engineering
Falzon, Brian G.;  Queen’s University Belfast > School of Mechanical and Aerospace Engineering
Boman, Romain  ;  Université de Liège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Chen, Bernard;  Monash University > Department of Mechanical and Aerospace Engineering
Yan, Wenyi;  Monash University > Department of Mechanical and Aerospace Engineering
Language :
English
Title :
Finite element modelling of composite structures under crushing load
Publication date :
November 2015
Journal title :
Composite Structures
ISSN :
0263-8223
eISSN :
1879-1085
Publisher :
Elsevier Science
Volume :
131
Pages :
215–228
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 16 May 2015

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