Automatic generation of 2D micromechanical finite element model of silicon–carbide/aluminum metal matrix composites: Effects of the boundary conditions

Qing, Hai

doi:10.1016/j.matdes.2012.08.011

Cited by 60 publications

(25 citation statements)

References 35 publications

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“…So far, the great majority of published works [7][8][9] have assumed not only a random distribution of the particles, but also an arbitrary set of particle shape, size and layout, often disregarding the true nature of the heterogeneity.…”

Section: Introductionmentioning

confidence: 99%

Mechanical characterization of rubberized concrete using an image-processing/XFEM coupled procedure

Duarte

Silva

Silvestre

et al. 2015

Composites Part B: Engineering

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Section: Introductionmentioning

confidence: 99%

Mechanical characterization of rubberized concrete using an image-processing/XFEM coupled procedure

Duarte

Silva

Silvestre

et al. 2015

Composites Part B: Engineering

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“…4-node bilinear plane strain element with full integration (CPE4) is adopted to model the particle and matrix to avoid hourglassing. The mesh dimension is chosen to ensure that the particle volume fraction in the discretized models is within 0.05% of the theoretical value, which can ascertain the convergence of the FEM models [Qing, 2013a;Qing, 2013b]. We can get a command file for the commercial software MSC/Patran through running the program.…”

Section: Representative Volume Element (Rve )mentioning

confidence: 99%

“…Periodic boundary conditions are adopted to eliminate the effect of RVE borders [Qing, 2013a]. An Abaqus User Subroutine MPC is developed to realize the periodic boundary conditions.…”

Section: Micromechanical Testsmentioning

confidence: 99%

“…Ekici et al [2010] investigated the effect of random particle distribution, dimension and volume fraction on the indentation behavior of MMCs under a spherical indenter. Qing [2013aQing [ , 2013bQing [ , 2014a studied the influence of interphase strength, particle volume fraction and loading conditions on the mechanical properties of MMCs. Ayyar and Chawla [2007] studied the influence of particle volume fraction, size, morphology, spatial distribution on the crack growth behavior of MMCs.…”

Section: Introductionmentioning

confidence: 99%

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Micromechanical Analysis of SiC/Al Metal Matrix Composites: Finite Element Modeling and Damage Simulation

Qing

Liu

2015

Int. J. Appl. Mechanics

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The influence of interface strengths and microstructures on the strength and damage of SiC particle reinforced aluminum Metal Matrix Composite (MMC) is investigated under uniaxial tensile, simple shear, biaxial tensile and combined tensile and shear loadings. An algorithm to generate automatically the microstructural models of MMCs with random distribution of particle shapes, dimensions, orientations and locations is proposed and implemented within Matlab. A damage model based on the stress triaxial indicator is developed to simulate the ductile failure of metal matrix, the other damage model based on the maximum principal stress criterion is developed to simulate the brittle failure of SiC particles, and 2D cohesive element is utilized to describe interface decohesion between matrix and particles. A series of numerical experiments are performed to study the macroscopic stress-strain relationships and microscale damage evolution in MMCs under different loading conditions.

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“…In order to evaluate creep fatigue interactions and combined damages of MMCs under cyclic load and high temperature condition, various factors that affect creep and fatigue behaviours of composites need to be investigated, including effects of the applied cyclic load level, dwell period and temperature on the MMC's performance. Numerical simulations and modelling of fibre or particle reinforced aluminium based MMC have been performed by many researchers [7][8][9][10][11][12][13][14][15], in particular for the low cycle fatigue damage due to the cyclic plasticity, and creep rupture under high temperature condition. Traditional Finite Element Analysis was adopted, using for each case the most convenient material model, able to fit the experimental results.…”

Section: Introductionmentioning

confidence: 99%

Creep-fatigue behaviour of aluminum alloy-based metal matrix composite

Barbera¹,

Chen²,

Liu

2016

International Journal of Pressure Vessels and Piping

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Metal Matrix Composite (MMC) represents a valuable option as structural material for different type of structures and components. Despite this they struggle to become widely adopted due to expensive manufacturing process and complex microstructural behaviour. When subjected to cyclic load conditions the structural response of MMC is not trivial, and becomes even more difficult when high temperature load is involved. Different failure mechanisms would happen and they are originated by the different material properties between the fibre and surrounding matrix. Among all, the mismatch of thermal expansion coefficient is recognized to be the dominant one. The significantly differing coefficients of thermal expansion between ceramic and metal give rise to micro thermal stresses, which enhance the initiation of matrix micro cracks. Their performance under varying load and high temperature is complex, and hence it is difficult to have a clear understanding of the structural responses, especially when fatigue and creep damages become the main failures of MMCs. To improve current understanding of the relationship between creep fatigue interaction of MMCs, the history of thermal and mechanical loading, and the creep dwell period, a highly accurate but robust direct simulation technique on the basis of the Linear Matching Method (LMM) framework has been proposed in this paper, and been applied to model the fatigue and creep behaviour of MMCs. A homogenised FE model is considered in all analyses, which consist of continuous silicon carbide fibres embedded in a square 2024T3 aluminium alloy matrix array. Various factors that affect creep and fatigue behaviours of composites are analysed and discussed, including effects of the applied load level, dwell period and temperature on the MMC's performance. The effects of reversed plasticity on stress relaxation and creep deformation of MMC are investigated, and the behaviours of cyclically enhanced creep and elastic followup are presented. A detailed study of the creep ratchetting mechanism is also performed with the concentration on the impact of temperature and different loading conditions. The accuracy of the proposed method has been verified by detailed incremental finite element analyses using the commercial finite element solver Abaqus. Such verifications further improve the understanding of the failure mechanisms identified and discussed in this work.

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Automatic generation of 2D micromechanical finite element model of silicon–carbide/aluminum metal matrix composites: Effects of the boundary conditions

Cited by 60 publications

References 35 publications

Mechanical characterization of rubberized concrete using an image-processing/XFEM coupled procedure

Mechanical characterization of rubberized concrete using an image-processing/XFEM coupled procedure

Micromechanical Analysis of SiC/Al Metal Matrix Composites: Finite Element Modeling and Damage Simulation

Creep-fatigue behaviour of aluminum alloy-based metal matrix composite

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