Failure Analysis of Particle Reinforced Aluminum Matrix Composite With a Microscopic Mechanical Model Using Modified GTN Model

IF 2.9 4区材料科学 Q3 MATERIALS SCIENCE, COMPOSITES

Applied Composite Materials Pub Date : 2025-04-10 DOI:10.1007/s10443-025-10333-5

Ma Mingze, Ding Ya, Lin Hanyu, Zhao Huiru

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Abstract

A microscopic mechanical model is developed to investigate the mechanical properties and damage behavior of aluminum matrix composites. The effect of particle size distribution and shapes on the properties of aluminum matrix composites is investigated by building three-dimensional (3D) representative volume elements (RVE). The particle size-dependent strengthening and mismatch of thermal expansion strengthening are considered using Taylor-based nonlocal theory of plastic. The damage of matrix is predicted based on the Gurson–Tvergaard–Needleman (GTN) theory. Shear effects are introduced to the GTN model to better describe the failure behavior at low levels of stress triaxiality. A maximum principal stress criterion is used to describe the failure behavior of SiC particles and cohesive behavior is adopted to simulate interface debonding between matrix and particles. Results show that particle size and shape have a significant effect on the failure behaviour of aluminum matrix composites.

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基于改进GTN模型的颗粒增强铝基复合材料微观力学分析

建立了细观力学模型，研究了铝基复合材料的力学性能和损伤行为。通过建立三维代表性体积元（RVE），研究了铝基复合材料的粒径分布和形状对其性能的影响。采用基于taylor的非局部塑性理论，考虑了热膨胀强化的粒径依赖性和失配性。基于Gurson-Tvergaard-Needleman （GTN）理论对基体损伤进行了预测。为了更好地描述低应力三轴状态下的破坏行为，在GTN模型中引入了剪切效应。采用最大主应力准则来描述碳化硅颗粒的破坏行为，采用内聚行为来模拟基体与颗粒之间的界面剥离。结果表明，颗粒尺寸和形状对铝基复合材料的破坏行为有显著影响。

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来源期刊

Applied Composite Materials 工程技术-材料科学：复合

CiteScore

4.20

自引率

4.30%

发文量

审稿时长

1.6 months

期刊介绍： Applied Composite Materials is an international journal dedicated to the publication of original full-length papers, review articles and short communications of the highest quality that advance the development and application of engineering composite materials. Its articles identify problems that limit the performance and reliability of the composite material and composite part; and propose solutions that lead to innovation in design and the successful exploitation and commercialization of composite materials across the widest spectrum of engineering uses. The main focus is on the quantitative descriptions of material systems and processing routes. Coverage includes management of time-dependent changes in microscopic and macroscopic structure and its exploitation from the material''s conception through to its eventual obsolescence.