NUMERICAL SIMULATION OF FAILURE ANALYSIS OF CFRPLAMINATES UNDER COMPRESSION AFTER IMPACT

Abstract

Abstract: The damage tolerance of composite laminates is a key factor in the design of composite structures. In order to solve the problem of low velocity impact damage and compression damage of composite (CFRP) laminates, based on continuous damage mechanics and cohesive element model, the low velocity impact and compression of impact simulation analysis of two kinds of composite laminates with different impact energy is carried out in ABAQUS. The intralaminar and interlaminar damage is studied, and the impact damage and compression failure behavior of composite laminates are analyzed. The effectiveness of the model is verified by comparing with the experimental results. The results show that the low velocity impact damage has an important effect on the residual compressive strength of composite laminates. The failure of the specimen begins in the impact damage area and gradually extends to the edge of the composite laminates. The compression force decreases rapidly and the laminates finally fails.

Key words: composite, impact, compression of impact, residual compressive strength, progressive damage

CLC Number:

TB332

LI Yao-lei, TIE Ying, LI Cheng, SUN Zhen-hui. NUMERICAL SIMULATION OF FAILURE ANALYSIS OF CFRPLAMINATES UNDER COMPRESSION AFTER IMPACT[J]. Composites Science and Engineering, 2020, 0(5): 12-18.

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