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探索生物基聚氨粘合剂的生态友好型结构应用:一个实验和数值研究

Ana M S Couto¹, Catarina S P Borges², Shahin Jalali²

¹Departamento de Engenharia Mecânica, Faculdade de Engenharia, Universidade do Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal.

|September 14, 2024

概括

这项研究研究了由松木制成的生物粘合性L关节,发现关节配置显著影响强度. 实验和数值分析使用最大主应力故障预测器准确预测了故障模式.

科学领域:

材料科学材料科学材料科学
机械工程机械工程
可持续工程可持续工程

背景情况:

越来越多的环境问题推动汽车和民用部门等行业向可持续材料发展.
来自可再生资源的生物粘合剂对于可持续的粘合剂粘合应用至关重要.
在汽车工业中,L型接头是常见的,用于需要高曲刚度的结构部件.

研究的目的:

用松木分析生物粘合L关节的机械行为和故障模式.
为了比较两个具有不同木纤维方向的L关节配置.
用有限元模型验证实验结果.

主要方法:

用生物粘合剂粘合的松木L关节的试验拉力测试.
有限元模型 (FEM) 模拟在拉伸负荷下的关节行为.
用最大主应力故障预测器 (MPSFP) 应用于裂传播分析.

主要成果:

关节的配置极大地影响了生物粘合剂关节的整体性能和强度.
一个特定的关节配置与另一个相比表现出更高的强度.
在一个配置中,实验结果和数值结果之间实现了很高的相关性.
在两种关节配置中,MPSFP准确地预测了裂启动和传播路径.

结论:

优化L关节配置对于最大限度地提高木材生物粘合结构的性能至关重要.
结合实验和数值方法,可以对联合行为提供可靠的见解.
在这些可持续的关节中,MPSFP是预测这些关节的故障的宝贵工具.

关键词:

一个L-关节.粘合剂粘合剂粘合剂粘合剂汽车行业汽车行业汽车行业汽车行业生物材料是一种生物材料.有限元分析是有限元分析.松木木松木木材松木木材木材木材木材木材

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