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Verification of a novel material model to predict damage in composite structures
Chiu, Louis N.S.; Falzon, Brian G.; Boman, Romain et al.
2013In International Conference on Structural Integrity and Fracture
Peer reviewed
 

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Keywords :
Continuum damage mechanics; Finite element method; Fibre-reinforced composites
Abstract :
[en] An intralaminar damage model (IDM), based on continuum damage mechanics, was developed for the simulation of composite structures subjected to damaging loads. This model can capture the complex intralaminar damage mechanisms, accounting for mode interactions, and delaminations. Its development is driven by a requirement for reliable crush simulations to design composite structures with a high specific energy absorption. This IDM was implemented as a user subroutine within the commercial finite element package, Abaqus/Explicit[1]. In this paper, the validation of the IDM is presented using two test cases. Firstly, the IDM is benchmarked against published data for a blunt notched specimen under uniaxial tensile loading, comparing the failure strength as well as showing the damage. Secondly, the crush response of a set of tulip-triggered composite cylinders was obtained experimentally. The crush loading and the associated energy of the specimen is compared with the FE model prediction. These test cases show that the developed IDM is able to capture the structural response with satisfactory accuracy.
Disciplines :
Mechanical engineering
Materials science & engineering
Author, co-author :
Chiu, Louis N.S.
Falzon, Brian G.
Boman, Romain  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Département d'aérospatiale et mécanique
Chen, Bernard
Yan, Wenyi
Language :
English
Title :
Verification of a novel material model to predict damage in composite structures
Publication date :
11 July 2013
Event name :
International Conference on Structural Integrity and Fracture (SIF 2013)
Event organizer :
RMIT University and the Australian Fracture Group
Event place :
Melbourne, Australia
Event date :
11-12 July 2013
Audience :
International
Main work title :
International Conference on Structural Integrity and Fracture
Peer reviewed :
Peer reviewed
Available on ORBi :
since 23 July 2013

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