Investigating the mechanical failure mechanisms of a novel CFRP composite to inform computational models

Guillaume Lostec; Louis Corcoran; Hongxuan Chen; Wei Zhang; Rong Long; Yinghua Jin

doi:10.1117/12.3012737

9 May 2024 Investigating the mechanical failure mechanisms of a novel CFRP composite to inform computational models

Guillaume Lostec, Louis Corcoran, Hongxuan Chen, Wei Zhang, Rong Long, Yinghua Jin

Proceedings Volume 12950, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII; 129500O (2024) https://doi.org/10.1117/12.3012737
Event: SPIE Smart Structures + Nondestructive Evaluation, 2024, Long Beach, California, United States

Abstract

Carbon fiber reinforced polymers (CFRP) are promising next-generation, lightweight materials for use in the automotive and aerospace industries. Unfortunately, the production cost of virgin carbon fiber is expensive, the manufacturing of CFRP parts is costly and wasteful, and the recycling of CFRP generally results in (1) the reduced mechanical properties of recycled carbon fibers (rCF) and (2) the incorporation of rCF into low-value composites. In efforts to improve upon these areas, we have recently developed malleable, healable, and recyclable vitrimer composites with milled rCF that have produced promising material and mechanical properties—this work aims to investigate and understand the damage/failure mechanisms of these materials. Herein, we utilize dynamic mechanical analysis (DMA) and scanning electron microscopy (SEM) to understand and observe the damage mechanisms that result in the mechanical failure of these materials. Further, we utilize this information to inform the development of a constitutive model. The model is based on a statistical description of the network structure. The principles of thermodynamics are then used to derive the constitutive behavior for CFRP.

Conference Presentation

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Guillaume Lostec, Louis Corcoran, Hongxuan Chen, Wei Zhang, Rong Long, and Yinghua Jin "Investigating the mechanical failure mechanisms of a novel CFRP composite to inform computational models", Proc. SPIE 12950, Nondestructive Characterization and Monitoring of Advanced Materials, Aerospace, Civil Infrastructure, and Transportation XVIII, 129500O (9 May 2024); https://doi.org/10.1117/12.3012737

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