Multi-scale analysis and comparison of low-speed impact of carbon fiber plain and twill woven composite materials

doi:10.19936/j.cnki.2096-8000.20230128.002

Abstract

Abstract: To explore the impact response of the plain and twill woven composites, a multi-scale framework was constructed to analyze and compare. First, the mesoscale representative volume element (RVE) of plain and twill woven composites were established to explore their mechanical properties, then locally homogeneous the mesoscale representative volume element(RVE) of pain and twill woven composites were transformed into equivalent cross lamination (equivalent cross-ply laminate, ECPL) model. Finally, the ECPL model of both was expanded into a macroscopic low-speed impact model, with numerical simulations at 6 J impact energy and compared with the experimental results. The results show that the impact time curves of plain and twill woven composite are similar to the experiments, verifying the effectiveness of the macroscopic model. The impact peak of twill woven composite, impact shock time and energy absorption are higher than the plain woven composite.

Key words: woven composites, ECPL, multi-scale modeling, low-speed impact

CLC Number:

TB332

LIU Le, SHI Jianwei, YANG Jingjing, LI Cheng. Multi-scale analysis and comparison of low-speed impact of carbon fiber plain and twill woven composite materials[J]. COMPOSITES SCIENCE AND ENGINEERING, 2023, 0(1): 16-25.

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