A micromechanics-based interface mesomodel for virtual testing of laminated composites

Abstract : Background: The prediction of the behavior of laminated composite structures up to final fracture continues to be a challenge today. Indeed, failure may occur due to the interaction of small-scale degradations, such as transverse intraply cracks and interface delamination, which are difficult to account for in calculations on the structure’s scale. Methods: Here, in order to model the interaction of intralaminar and interlaminar degradations, we develop a new and relatively simple micromechanics-based interface mesomodel which differs from classical cohesive interface models, since it includes the coupling between transverse intraply cracks and interface delamination. Results: The new interface model was implemented in a finite element code and used in the simulation of tensile tests on unnotched and holed specimens. Simulations with a classical cohesive interface model (not including coupling) were also carried out. Conclusions: The simulations highlight the need for introducing intra-/interlaminar’s behavior coupling in order to accurately predict the damage evolution and failure stress and mode.
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Journal articles
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https://hal.archives-ouvertes.fr/hal-01581402
Contributor : Federica Daghia <>
Submitted on : Monday, September 4, 2017 - 3:41:30 PM
Last modification on : Saturday, May 25, 2019 - 1:44:45 AM

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Pierre Ladevèze, Federica Daghia, Emmanuelle Abisset, Camille Le Mauff. A micromechanics-based interface mesomodel for virtual testing of laminated composites. Advanced Modeling and Simulation in Engineering Sciences, SpringerOpen, 2014, 1 (1), pp.1-16. ⟨10.1186/2213-7467-1-7⟩. ⟨hal-01581402⟩

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