Quantitative model for yielding process of particle reinforced aluminum matrix composites

IF 8.1 2区材料科学 Q1 ENGINEERING, MANUFACTURING

Composites Part A: Applied Science and Manufacturing Pub Date : 2025-05-31 DOI:10.1016/j.compositesa.2025.109063

H. Wang , Z.J. Zhang , R. Liu , S.Z. Zhu , D. Wang , J.P. Hou , B.S. Gong , X.H. Zhou , Z.Y. Ma , X.T. Li , Z.F. Zhang

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引用次数: 0

Abstract

This study investigates the yielding behaviors of ceramic particle-reinforced Al matrix composites in comparison to their matrix. The findings reveal that the yielding of composites occurs in a more gradual manner than that of the matrix. By designing loading–unloading-reloading tests and conducting simulations, we systematically excluded various influencing factors, including particle cracking, interface debonding, and stress concentration at the sharp corners of particles. Consequently, the observed yielding phenomenon can be attributed to the redistribution of stress and strain in the Al matrix resulting from the difference in modulus between the Al matrix the ceramic phases. To quantitatively reveal the quantitative relationship between stress and strain during the yielding stage, a gradual yielding (GY) model is further established based on the composite modulus integral model and the exponential strain-hardening model proposed in our previous studies. The experimental results of the Al matrix and three composites with different particle sizes show high consistency with the GY model, verifying the rationality of the current model. This research fills a theoretical gap in understanding the GY behavior of composites and may be beneficial for the design and fabrication of high-performance composite materials in future.

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颗粒增强铝基复合材料屈服过程的定量模型

本文研究了陶瓷颗粒增强铝基复合材料的屈服行为，并将其与基体进行了比较。结果表明，复合材料的屈服过程比基体的屈服过程更为缓慢。通过设计加载-卸载-再加载试验并进行模拟，系统排除了颗粒开裂、界面脱粘、颗粒尖角应力集中等各种影响因素。因此，观察到的屈服现象可以归因于Al基体中应力和应变的重新分布，这是由于Al基体与陶瓷相之间的模量差异造成的。为了定量揭示屈服阶段应力与应变之间的定量关系，在前人研究的复合模量积分模型和指数应变硬化模型的基础上，进一步建立了渐变屈服模型。Al基体和三种不同粒径的复合材料的实验结果与GY模型具有较高的一致性，验证了当前模型的合理性。该研究填补了复合材料GY行为的理论空白，对高性能复合材料的设计和制造具有重要意义。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Composites Part A: Applied Science and Manufacturing 工程技术-材料科学：复合

CiteScore

15.20

自引率

5.70%

发文量

492

审稿时长

30 days

期刊介绍： Composites Part A: Applied Science and Manufacturing is a comprehensive journal that publishes original research papers, review articles, case studies, short communications, and letters covering various aspects of composite materials science and technology. This includes fibrous and particulate reinforcements in polymeric, metallic, and ceramic matrices, as well as 'natural' composites like wood and biological materials. The journal addresses topics such as properties, design, and manufacture of reinforcing fibers and particles, novel architectures and concepts, multifunctional composites, advancements in fabrication and processing, manufacturing science, process modeling, experimental mechanics, microstructural characterization, interfaces, prediction and measurement of mechanical, physical, and chemical behavior, and performance in service. Additionally, articles on economic and commercial aspects, design, and case studies are welcomed. All submissions undergo rigorous peer review to ensure they contribute significantly and innovatively, maintaining high standards for content and presentation. The editorial team aims to expedite the review process for prompt publication.