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Simulation of progressive damage in composites using the enhanced embedded element technique
conference contribution
posted on 2015-01-01, 00:00 authored by Mathew JoostenMathew Joosten, Matthew Dingle, Ashley Denmead, Michael Silcock, B Cox, A Mouritz, A A Khatibi, S Agius, B Trippit, C H WangAnalysis of complex composite structures requires a fine contiguous mesh of threedimensional (3D) solid elements. The embedded element technique is a promising technique for predicting stiffness and stress. This paper presents a new method for enhancing the embedded element with continuum damage mechanics methods for predicting the evolution of damage in fiber reinforced composite structures. Comparison of the model prediction with experimental results reveals an excellent correlation between the tensile strength of quasi-isotropic laminate with an open hole. The embedded element technique allows the fiber reinforcement and matrix domains to be meshed independently and failure is evaluated separately in each domain. The enhanced embedded element approach allows the failure modes to be observed, specifically, the evolution of matrix cracking and fiber rupture. Compared to the traditional contiguous mesh finite element method, the present modelling technique demonstrates a clear advantage in predicting the experimentally observed failure modes and accurate characterisation of intralaminar fracture.
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Event
Composites Australia & CRS-ACS. Conference & Trade Exhibition (2015 : Gold Coast, Qld.)Pagination
1 - 17Publisher
Composites AustraliaLocation
Gold Coast, Qld.Place of publication
Richmond, Vic.Start date
2015-04-21End date
2015-04-23Language
engPublication classification
E Conference publication; E1 Full written paper - refereedCopyright notice
[2015, Composites Australia]Editor/Contributor(s)
[Unknown]Title of proceedings
ACI 2015 : Proceedings of the Composites Australia and CRC-ACS 2015 Conference and Trade ExhibitionUsage metrics
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