The static mechanical behavior of two-dimensional (2D) hybrid composites was thoroughly investigated using both experiments and simulations. The study focuses on how the material properties of aramid yarns influence the failure modes of the composite material. In tensile tests, failure cracks are primarily linked to the high fracture elongation and the interfacial properties of the aramid yarns. Meanwhile, compression failure cracks are associated with large-angle kinking failure in the aramid yarns. An effectively multiscale model was developed to predict the macroscopic mechanical performance of the hybrid composites. The model provides crucial insights into the failure mechanisms of the components under static loading. By combining experimental results and simulation predictions, it is concluded that the failure of fiber yarns in the loading direction is the key factor contributing to material failure, with failure cracks more likely to form at locations with the maximum curvature of the yarn path.

错误:搜索内容不能为空,请输入英文关键词
错误:关键词超出字数限制,请精简
高级检索

Prediction of Mechanical Properties and Failure Behavior of Hybrid Composites Based on a Multiscale Approach

  • Jikai Yu,
  • Changliang Lin,
  • Qingli Wang

摘要

The static mechanical behavior of two-dimensional (2D) hybrid composites was thoroughly investigated using both experiments and simulations. The study focuses on how the material properties of aramid yarns influence the failure modes of the composite material. In tensile tests, failure cracks are primarily linked to the high fracture elongation and the interfacial properties of the aramid yarns. Meanwhile, compression failure cracks are associated with large-angle kinking failure in the aramid yarns. An effectively multiscale model was developed to predict the macroscopic mechanical performance of the hybrid composites. The model provides crucial insights into the failure mechanisms of the components under static loading. By combining experimental results and simulation predictions, it is concluded that the failure of fiber yarns in the loading direction is the key factor contributing to material failure, with failure cracks more likely to form at locations with the maximum curvature of the yarn path.