TPMS架构的机械同质化:有限元与结构基因组方法的结构力学之间的比较
Sara Mouman1,2, Yao Koutsawa1, Lucas Binsfeld1
1Luxembourg Institute of Science and Technology, 5 Avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg.
Materials (Basel, Switzerland)
|December 11, 2025
概括
本研究比较了有限元素 (FE) 和结构基因组 (MSG) 机制的方法,用于同质化三重周期性最小表面 (TPMS) 格子结构. 这两种方法都准确地预测了机械性能,显示的差异小于1%,并与实验数据进行验证.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算力学 计算力学 计算力学
背景情况:
- 三重周期性最小表面 (TPMS) 格子结构提供了独特的轻量级设计可能性,具有量身定制的特性.
- 了解它们的有效机械行为对于高级应用至关重要.
- 同质化技术对于从微观结构细节中预测宏观性质至关重要.
研究的目的:
- 为了比较分析TPMS格子结构的机械均化.
- 评估基于有限元素 (FE) 的同质化与结构基因组 (MSG) 机制理论的准确性,一致性和效率.
- 研究各种TPMS拓及其机械异构性.
主要方法:
- 通过使用Microgen,为多个TPMS拓产生代表单位细胞 (RUC).
- 基于FE的同质化 (Abaqus) 和MSG理论 (内部软件) 的应用.
- 对10%至50%的相对密度的RUC分析.
主要成果:
- 两种FE和MSG方法都取得了很好的一致性,有效性质的差异<1%.
- 结果显示,对于有效的模值,与文献实验数据的偏差为<5%.
- 通过定向的模分布来检查TPMS拓的异质性.
结论:
- FE和MSG是TPMS机械均化的可靠和一致的方法.
- 该研究提供了对每个方法的优点和局限性的洞察.
- 结果支持设计轻质格子结构的均质化策略的明智选择.
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