规范化对生物灵感复合材料高效建模和模拟使用凝聚区方法的效果
Md Jalal Uddin Rumi1, Xiaowei Zeng1
1Department of Mechanical, Aerospace & Industrial Engineering, University of Texas at San Antonio, San Antonio, TX 78249, USA.
几何规则化改善了生物灵感复合材料的模块化. 这一预处理步骤使得高效,大规模的凝聚性断裂模拟能够实现,以前由网状退化阻碍.
科学领域:
- 材料科学 材料科学 材料科学
- 计算力学 计算力学 计算力学
- 生物启发材料 生物启发材料
背景情况:
- 基于特塞拉的微观结构 (Voronoi,Laguerre) 模拟生物灵感复合材料.
- 几何变性 (短边,切片面) 阻碍了网格和模拟.
- 界面断裂的凝聚区模拟是计算密集的.
研究的目的:
- 引入和评估基于图形化的微观结构的几何规则化步骤.
- 量化调整对有限元离散和凝聚性断裂模拟的影响.
- 为了实现生物灵感复合材料的高效和大规模模拟.
主要方法:
- 几何规则化强制执行在网格之前的最小特征长度.
- 系统量化规范化对网格和模拟性能的影响.
- 应用于具有凝聚性接口的3D生物灵感有机-无机复合物.
主要成果:
- 规则化的图形图表显示了更好的边长和面径分布.
- 可调整性显著提高,使实际解决方案成为可能.
- 减少了元素数量 (几乎是5倍) 和增加了稳定时间增量 (大小4个数量级).
- 将一个分歧分析转化为一个强大的,收的模拟.
结论:
- 在高效,大规模的凝聚性骨折模拟中,几何规律化至关重要.
- 这一预处理步骤克服了传统嵌方法的局限.
- 能够对复杂的生物灵感材料接口进行强大的计算建模.
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