复合材料科学与工程 ›› 2026, Vol. 0 ›› Issue (5): 34-40.DOI: 10.19936/j.cnki.2096-8000.20260528.005

• 基础与力学性能研究 • 上一篇    下一篇

陶瓷颗粒增强铝基复合材料残余应力的多尺度模拟

李晓敏1, 杨营2, 黎家宝3*   

  1. 1.茂名职业技术学院 机电信息系,茂名 525000;
    2.广东石油化工学院 材料科学与工程学院,茂名 525000;
    3.广东石油化工学院 机电工程学院,茂名 525000
  • 收稿日期:2025-04-14 出版日期:2026-05-28 发布日期:2026-07-01
  • 通讯作者: 黎家宝(1982—),男,学士,高级技师,研究方向为材料加工与数控技术,Lijiabde2020@163.com。
  • 作者简介:李晓敏(1983—),女,硕士,讲师,研究方向为金属材料成型与加工。
  • 基金资助:
    广东省自然科学基金(2016A030310308)

Multiscale simulation of residual stress in aluminum matrix composites reinforced with ceramic particles

LI Xiaomin1, YANG Ying2, LI Jiabao3*   

  1. 1. Department of Mechanical and Electrical Information, Maoming Polytechnic, Maoming 525000, China;
    2. School of Materials Science and Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China;
    3. School of Mechanical and Electrical Engineering, Guangdong University of Petrochemical Technology, Maoming 525000, China
  • Received:2025-04-14 Online:2026-05-28 Published:2026-07-01

摘要: 本研究旨在探究陶瓷颗粒增强金属基复合材料等效弹性响应特性及残余应力演化机制,通过多尺度建模策略,创新性地构建了包含有效代表性体积单元的多尺度弹性响应模型,实现了从细观弹性响应到宏观力学行为的跨尺度关联。以Al2O3/A356复合材料为例,理论预测了不同A356含量的复合材料等效弹性性能以及残余应力。结果表明:复合材料等效弹性常数随着A356含量的增加而逐渐降低,呈现明显的软化效应;承载时,Al2O3陶瓷相存在压缩应力,且复合材料压缩残余应力随A356金属相的增加呈现先升后降的非单调变化规律。模型预测的复合材料等效弹性性能以及残余应力与试验测量值相吻合,验证了该多尺度模型的准确性,为复合材料正向设计以及性能优化提供了可靠的理论依据。

关键词: 陶瓷颗粒, 金属基复合材料, 弹性性能, 残余应力

Abstract: This study was to investigate the effective elastic response characteristics and residual stress evolution mechanism of ceramic particle-reinforced metal matrix composites, and an innovative multiscale elastic response model incorporating the effective representative volume elements was constructed through a multi-scale modeling strategy to achieve a cross-scale correlation from micromechanical elastic response to the macroscopic mechanical behavior. The effective elastic properties and residual stresses of composites with varying A356 contents were theoretically predicted by taking Al2O3/A356 composites as an example. The results are shown that the effective elastic constants of composites gradually decrease with the increasement of A356 contents, exhibiting a distinct softening effect. Under mechanical loading to the composites, there is compressive stresses in the Al2O3 metal phase, and the compressive residual stress in the composites varies with the A356 in a nonmonotonic pattern of first increasing and then decreasing. These predicted values of the effective elastic properties and residual stresses show a good agreement with experimental measurements, validating the accuracy of the proposed model, which provides a theoretical foundation for the forward design and performance optimization of composites.

Key words: ceramic particle, metal matrix composites, elastic properties, residual stresses

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