4.6 Article

Numerical Study on the Progressive Damage Behavior of the Interfacial Debonding between Shape Memory Alloy and Polymer Matrix

期刊

MATERIALS
卷 16, 期 1, 页码 -

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MDPI
DOI: 10.3390/ma16010168

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interface performance; finite element analysis; interfacial debonding; shape memory alloy composites; cohesive zone model

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Shape memory alloy reinforced composites have great potential for application in aerospace, automotive, and biomedical engineering. The interfacial bonding performance between the shape memory alloy and polymer matrix is crucial for improving the mechanical properties. An innovative finite element model based on the cohesive zone model is proposed to simulate the progressive damage behavior of interfacial debonding. The model is validated by the good agreement between numerical results and experimental results.
The shape memory alloy reinforced composites have promising application potential for aerospace, automotive and biomedical engineering, while the interfacial bonding performance between shape memory alloy and polymer matrix is crucial to the improvement on the mechanical properties. The interfacial bonding mechanical properties are not uniform on the interface between shape memory alloy and the polymer matrix due to the existence of internal defects. Based on the cohesive zone model, an innovative finite element model is proposed to simulate the progressive damage behavior of the interfacial debonding between shape memory alloy and polymer matrix. The good agreement between the numerical results and the available experimental results indicates the validation of the proposed model. The progressive damage and connection of different positions of the interface between shape memory alloy and polymer matrix result in the final interfacial debonding behavior. Further, the effects of the shape memory alloy length-diameter ratio and embedded depth on the interface performance between shape memory alloy and polymer matrix are investigated.

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