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Damage Interactions in CFRP Composites under High Cycle Fatigue

MICHAEL J. BOGDANOR, CAN EREL, CAGLAR OSKAY

Abstract


This study provides a computational investigation of the interaction of damage mechanisms in carbon fiber reinforced polymer (CFRP) laminated composites subjected to fatigue loading. The investigation particularly focuses on [60,0,-60]3S laminates, for which the behavior clearly demonstrates strong interactions between the relevant damage modes. The numerical studies are performed using a multiple spatiotemporal homogenization based multiscale life prediction framework. The model parameters pertaining to the material constituents are calibrated using a suite of experimental data from static and fatigue response of unidirectional laminates. The analysis results indicate a strong interactive effect of subcritical damage mechanisms on the fatigue survivability of laminated composites under high cycle fatigue loading.


DOI
10.12783/asc2017/15359

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