DAMAGE PREDICTION AND MODELLING COMPARISON OF CARBON FIBER-REINFORCEDCOMPOSITE OPEN-HOLE LAMINATES UNDER COMPRESSION

Abstract

Abstract: The finite element models of shell elements, shell-cohesive mixed elements and shell-solid mixed elements were developed in software Abaqus to model two open-hole composite laminates (OHC), i.e. flat OHC and cylindrical OHC. The universal Abaqus built-in software and proprietary user-subroutine were respectively adopted to analyze compressive damage. The buckling, intralaminar failure and delamination of both OHCs under compression were predicted by Hashin failure criteria, modified Tsai-Wu failure criteria and Quads failure criteria, then compared with experimental results. The results show that the predicted strength of cylindrical OHC is less than 7% error for proposed five models; the damage initiation around hole and loss of loading-carrying capacity can be captured by all models. The shell model solely relying on Abaqus software with built-in Hashin failure criteria can provide an effective strength assessment of cylindrical OHC, while user-subroutines with modified Tsai-Wu failure criteria can offer a more reliable alternative for flat OHC.

Key words: composite, open-hole compression, finite element model, progressive failure analysis, failure criteria

CLC Number:

TB332

TANG Jing, CHEN Xiao, YANG Ke. DAMAGE PREDICTION AND MODELLING COMPARISON OF CARBON FIBER-REINFORCEDCOMPOSITE OPEN-HOLE LAMINATES UNDER COMPRESSION[J]. Fiber Reinforced Plastics/Composites, 2019, 0(10): 33-39.

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