用辅助性粘合剂建模单关节,使用同质和异质结合线微结构
Chatarina P Puspaningtyas1, Annisa Jusuf1, Bambang K Hadi1
1Mechanics of Solids and Lightweight Structures Research Group, Faculty of Mechanical and Aerospace Engineering, Institut Teknologi Bandung, Jalan Ganesha 10, Bandung 40132, Indonesia.
Heliyon
|January 31, 2024
概括
具有辅助性微结构的高性能粘合剂显著增强了轻质结构. 与基线模型相比,异质辅助性粘合剂增加了45%的关节强度,为粘合关节设计提供了一种新的方法.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 结构分析 结构分析
背景情况:
- 轻质结构对于效率至关重要,通常通过在机械紧固件上粘合粘合来实现.
- 高性能粘合剂是先进结构设计的关键.
- 有负波桑比的辅助材料具有独特的机械性能.
研究的目的:
- 研究使用辅助性微观结构量身定制高性能粘合剂的概念验证.
- 评估同质和异质辅助粘合剂对单膝关节 (SLJ) 性能的影响.
- 分析压力分布,故障机制和用辅助粘合剂粘合的关节的关节强度.
主要方法:
- 在ABAQUS/标准中开发了两种SLJ模型,采用同质和异质辅助性粘合剂.
- 通过内在材料特性 (同质) 或微观结构设计与圆空隙 (异质) 建模辅助性行为.
- 使用凝聚元素与双线拉力分离规则的粘附-粘合接口的表示.
主要成果:
- 辅助粘合剂显著影响SLJ反应,特别是在异质模型中.
- 与基线相比,在异质辅助性粘剂模型中,关节强度增强达到了45%.
- 不同质的auxetic粘合剂激活了带机制,在同质模型中没有观察到.
结论:
- 定制具有异质助氧微结构的粘合剂为增强结合关节强度提供了一个有前途的策略.
- 这种方法比同质辅助性粘合剂提供了显著的改进.
- 拟议的建模策略作为未来对辅助性粘合剂粘合的研究的基础.
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