树脂等级和抹布对低速影响对用于造船的复合材料的影响
George Cătălin Cristea1, Lorena Deleanu2, Ioana Gabriela Chiracu2
1National Institute for Aerospace Research (INCAS) "Elie Carafoli", 220 Iuliu Maniu, 061126 Bucharest, Romania.
Polymers
|February 13, 2025
概括
测试了四种用于造船的新型复合材料,以测试低速冲击. 带有Coremat Xi 3层的复合材料表现出更好的性能,减少最大力和增加能量吸收,证实它们适用于海洋应用的适用性.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 海军建筑 海军建筑
背景情况:
- 造船需要具有特定机械性能的先进复合材料.
- 低速冲击阻力是海洋结构的关键性能指标.
研究的目的:
- 设计和制造用于造船的新型复合材料.
- 评估这些复合材料的机械性能,特别是低速冲击行为.
- 评估不同树脂系统和Coremat Xi 3核心层对复合材料性能的影响.
主要方法:
- 使用四轴玻璃纤维面料,环氧或聚树脂以及可选的Coremat Xi 3制造四种复合材料.
- 在50-200 J的能量和4.37 ± 0.05 m/s的撞击速度下,对低速撞击试验进行实验性调查.
- 分析力位移和吸收能量位移曲线,评估最大力和位移等参数.
主要成果:
- 所有测试的复合材料在冲击时都表现出部分透.
- 结合Coremat Xi 3的复合材料在更高的冲击能量下表现出更高的性能,最大力 (Fmax) 降低了10.8%至29.08%.
- 在Coremat Xi 3复合材料中,能量吸收的增强归因于冲击器移位期间长时间的力平原.
结论:
- 设计的复合材料,特别是带有Coremat Xi 3的复合材料,显示出船舶建造应用的巨大潜力.
- 虽然低速冲击能量吸收的差异很小,但最大力度的减少很大.
- 进一步的研究可以优化复合材料设计,以提高海洋环境中的抗冲击能力.
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