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RESEARCH PRODUCT

Numerical simulation of fatigue-driven delamination using interface elements

Ugo GalvanettoDavid VioleauPaul RobinsonGiordano BellucciDavide Tumino

subject

DAMAGEinterface elementNumerical AnalysisEngineeringComputer simulationbusiness.industryApplied Mathematicscomposite materialsConstitutive equationGeneral EngineeringFracture mechanicsFatigue damageStructural engineeringdelaminationFinite element methodComputational TechniqueINTERLAMINAR FRACTURE SPECIMENS DAMAGE COMPOSITES FATIGUE GROWTHFATIGUE GROWTHDamage mechanicsMode couplingCOMPOSITESfatigueINTERLAMINAR FRACTURE SPECIMENSbusiness

description

This paper presents a computational technique for the prediction of fatigue-driven delamination growth in composite materials. The interface element, which has been extensively applied to predict delamination growth due to static loading, has been modified to incorporate the effects of cyclic loading. Using a damage mechanics formulation, the constitutive law for the interface element has been extended by incorporating a modified version of a continuum fatigue damage model. The paper presents details of the fatigue degradation strategy and examples of the predicted fatigue delamination growth in mode I, mode II and mixed mode I/II are presented to demonstrate that the numerical model mimics the Paris law behaviour usually observed in experimental testing. Copyright © 2005 John Wiley & Sons, Ltd.

yearjournalcountryeditionlanguage
2005-01-01International Journal for Numerical Methods in Engineering
https://doi.org/10.1002/nme.1338