形成极限的多尺度建模SUS430/Al1050/TA1层层的分析:将晶体可塑性有限元素与M-K理论集成
Xin Li1,2, Chunguo Liu1,2, Yunfeng Bai1,2
1College of Materials Science and Engineering, Jilin University, Changchun 130025, China.
Materials (Basel, Switzerland)
|January 28, 2026
概括
这项研究使用晶体塑性有限元素 (CPFE) 模型准确预测了SUS430/Al1050/TA1合金复合材料的成型极限图 (FLD). 先进的多尺度方法可以考虑复杂的材料结构和堆叠序列.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 计算机建模 计算建模
背景情况:
- 形成极限图 (FLD) 对于预测金属板的可塑性至关重要.
- 层状金属复合材料 (LMC) 具有独特的性能,但在可塑性预测方面存在挑战.
- 现有的模型经常与多层结构和多种晶体对称性作斗争.
研究的目的:
- 开发和验证一个用于预测SUS430/Al1050/TA1 LMC中的FLD的多尺度模型.
- 将晶体可塑性有限元 (CPFE) 和Marciniak-Kuczyński (M-K) 框架扩展到多层复合材料.
- 分析纹理演变及其与宏观尺度形成行为的联系.
主要方法:
- 使用与M-K理论集成的CPFE模型进行数值模拟.
- 开发具有代表性体积元素 (RVEs),从EBSD数据中结合晶体纹理.
- 通过对度分析和与Nakazima试验数据的验证对RVE进行校准.
主要成果:
- 成功预测不同的堆叠序列 (SUS或TA1层与模具相对应) 的LMC的FLD.
- 证明模型的准确性和效率作为预测工具.
- 分析变形诱导的纹理演变及其与成型行为的相关性.
结论:
- 建立的CPFE-MK多层模型有效地预测了多层LMC的FLD,包括FCC,BCC和HCP结构.
- 这项研究将微型变形机制与LMCs的宏观形成行为联系起来.
- 这项工作为分析和优化先进层状材料的可塑性提供了一个强大的框架.
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