Progressive Damage Behaviour Analysis and Comparison with 2D/3D Hashin Failure Models on Carbon Fibre-Reinforced Aluminium Laminates

It is known that carbon fibre-reinforced aluminium laminate is the third generation of fibre metal materials. This study investigates the response of carbon fibre-reinforced aluminium laminates (CARALL) under tensile loading and three-point bending tests, which evaluate the damage initiation and propagation mechanism. The 2D Hashin and 3D Hashin VUMAT models are used to analyse and compare each composite layer for finite element modelling. A bilinear cohesive contact model is modelled for the interface failure, and the Johnson cook model describes the aluminium layer. The mechanical response and failure analysis of CARALL were evaluated using load versus deflection curves, and the scanning electron microscope was adopted. The results revealed that the failure modes of CARALL were mainly observed in the aluminium layer fracture, fibre pull-out, fracture, and matrix tensile fracture under tensile and flexural loading conditions. The 2D Hashin and 3D Hashin models were similar in predicting tensile properties, flexural properties, mechanical response before peak load points, and final failure modes. It is highlighted that the 3D Hashin model can accurately reveal the failure mechanism and failure propagation mechanism of CARALL.

Automated summary

This study investigates the mechanical response and failure mechanism of carbon fibre-reinforced aluminium laminates under tensile and flexural loading conditions. The 2D Hashin and 3D Hashin VUMAT models are used for finite element analysis, and the load versus deflection curves and scanning electron microscope are employed for performance evaluation. The results reveal that the failure modes include aluminium layer fracture, fibre pull-out, fracture, and matrix tensile fracture. Both the 2D Hashin and 3D Hashin models show similar predictions in terms of performance and failure modes, but the 3D Hashin model accurately reveals the failure mechanism and propagation mechanism of carbon fibre-reinforced aluminium laminates.