对受到低速度冲击的复合材料层材进行补丁修复的实验和数值调查
Xiaojun Wei1, Mingxuan Huang1, Chaocan Cai1
1National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150080, China.
Polymers
|April 12, 2025
概括
修复几乎看不到撞击损伤 (BVID) 的复合结构对于安全至关重要. 双面补丁与优化的补丁大小有效地恢复结构强度和耐用性,最大限度地降低故障风险.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 结构完整性 结构完整性
背景情况:
- 复合材料的使用越来越多,需要有效的修复策略来修复受损的结构.
- 几乎看不见的冲击损伤 (BVID) 显著损害了层层材料的强度,需要强大的修复解决方案.
研究的目的:
- 为了研究各种补丁修复方法的有效性,复合板材用BVID.
- 为了确定最佳的补丁大小和修复配置 (单面或双面),以恢复强度.
主要方法:
- 结合压缩实验和有限元模拟.
- 评估不同的补丁大小和单面与双面修复技术.
主要成果:
- 低速冲击使层强度降低到原来的68.53%.
- 增加了补丁半径,增强了力量恢复率高达93.96%.
- 双面补丁提高了4.96%的维修效率和应力分布.
结论:
- 补丁修复对于恢复受损复合材料的强度至关重要.
- 优化双面补丁提供卓越的结构完整性和耐用性.
- 这些发现为复合材料维修的实际工程应用提供了指导.
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