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<p>The natural biomaterial bamboo exhibits excellent strength and toughness due to its unique structure. The modern pursuit of high-performance ballistic structures, combined with the design flexibility of ceramic matrix composites (CMCs), has led to the development of a new ceramic matrix gradient composite. The impact resistance of ceramic matrix composite laminates was studied related the mechanical behaviors to their microstructure. Micromechanics-based analysis approach and representative volume element (RVE) for numerical simulations were applied to estimate the effective mechanical parameters of unidirectional ceramic matrix composites. The results predicted are applicable for simulating the impact-resistant mechanical behaviors of laminates made of macroscopic ceramic matrix composites. The results demonstrated that the bionic structure, inspired by the bamboo cross-section, significantly enhanced the impact resistance of CMCs. The maximum difference in residual velocity between the positive gradient plate and the homogeneous plate was 28.39 m/s. The study highlighted also the potential for further optimization of these materials through advanced microstructural design and simulation techniques.</p>

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Multi Scale Coupling Method for Impact Resistance of Biomimetic Gradient Fiber Reinforced Ceramic Composite Structures

  • 期刊论文

  • 发表日期：

    2025年11月8日

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  • Haoyun Li,
  • Qianyi Wang,
  • Ali Tian,
  • Han Zheng

摘要

The natural biomaterial bamboo exhibits excellent strength and toughness due to its unique structure. The modern pursuit of high-performance ballistic structures, combined with the design flexibility of ceramic matrix composites (CMCs), has led to the development of a new ceramic matrix gradient composite. The impact resistance of ceramic matrix composite laminates was studied related the mechanical behaviors to their microstructure. Micromechanics-based analysis approach and representative volume element (RVE) for numerical simulations were applied to estimate the effective mechanical parameters of unidirectional ceramic matrix composites. The results predicted are applicable for simulating the impact-resistant mechanical behaviors of laminates made of macroscopic ceramic matrix composites. The results demonstrated that the bionic structure, inspired by the bamboo cross-section, significantly enhanced the impact resistance of CMCs. The maximum difference in residual velocity between the positive gradient plate and the homogeneous plate was 28.39 m/s. The study highlighted also the potential for further optimization of these materials through advanced microstructural design and simulation techniques.