混合聚合物复合框架的数值建模,用于选择的建筑部件,并对机械性能进行实验验证
Tegginamath Akshat1, Michal Petru1, Rajesh Kumar Mishra2
1Department of Machine Parts and Mechanism, Faculty of Mechanical Engineering, Technical University of Liberec, Studentská 1402/2, 46117 Liberec, Czech Republic.
Polymers
|January 25, 2025
概括
这项研究探讨了使用亚麻和玻璃纤维的混合复合材料,用于环保汽车部件. 结果显示,机械性能与合成复合材料相似,使得更轻,更节油的汽车成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 复合材料 复合材料 复合材料
背景情况:
- 在汽车制造业中,对可持续材料的需求日益增加.
- 需要减少对高性能复合材料中合成纤维的依赖.
- 像亚麻这样的天然纤维的潜力,可以创造更绿色的复合材料替代品.
研究的目的:
- 研究玻璃,亚麻和混合复合材料的机械性能.
- 为了比较天然混合复合材料与传统合成复合材料的性能.
- 通过实验结果验证复合材料设计的数值模拟.
主要方法:
- 使用ANSYS进行机械性质分析的有限元法 (FEM) 模拟.
- 用于汽车应用的复合梁/框架的制造.
- 拉伸性能和间层切削强度 (ILSS) 的实验验证.
- 使用计算机断层分析仪 (CTAn) 分析内部骨折.
主要成果:
- 玻璃环氧 (G-E) 复合材料表现出最大的抗拉强度 (415 MPa) 和ILSS (18.5 MPa).
- 亚麻-玻璃-环氧 (F-G-E) 复合材料的强度较低 (146 MPa) 和ILSS (17.0 MPa),但显示出显著的层间裂纹.
- 与实验数据相比,FEM模拟显示了高精度,最大误差为8.05%.
- G-E复合材料显示纤维故障,而F-G-E复合材料显示更多的层间裂纹.
结论:
- 混合复合材料为汽车应用中合成复合材料提供了一个可行的,环保的替代品.
- 这项研究验证了FEM作为预测复合机械行为的准确工具.
- 使用这些复合材料可以导致更轻的车辆部件,提高燃油效率和减少对环境的影响.
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