Thermal stress and strain in a metal matrix Composite with a Spherical Reinforcement Particle

Lee, Eun U.

doi:10.1007/bf02646013

Cited by 28 publications

(1 citation statement)

References 27 publications

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“…The reinforcements are in a state of hydrostatic stress that increases with increasing CTE, temperature change and elastic modulus. The matrix/reinforcement interface is a potential site for crack initiation under cycling thermal loading as plastic deformation initiated in the matrix adjacent to reinforcement particle [21]. Particles having certain aspect ratio, such as rectangular and triangular shapes, are practically more realistic.…”

Section: Discussion and Validation Of The Resultsmentioning

confidence: 99%

Residual stress generation in metal matrix composites after cooling

Wong

Pramanik

Basak

2018

Materials Science and Technology

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Effects of reinforcements' shapes, sizes and contents on (a) von-Mises stress along horizontal line in MMCs, (b) directions and distributions of principal stresses inside particles, matrix and interface, and (c) distribution of thermal residual stress in MMCs were analysed in this investigation. It was found that the matrix-particle interfaces experience sudden change of von-Mises stress which depends on the reinforcement shape. The smoothest change of stress was occurred in triangle particle reinforced MMCs. However, the highest stress was concentrated was at the corners of the triangular particles. The directions of stress vectors depend on the shape of the particles. The extent of the von-Mises stress increases with the increase of reinforcement content and decrease of particles size at constant content.

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Section: Discussion and Validation Of The Resultsmentioning

confidence: 99%

Residual stress generation in metal matrix composites after cooling

Wong

Pramanik

Basak

2018

Materials Science and Technology

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Damage Coupled Viscoplastic Modeling of Particulate Composites With Imperfect Interphase

Basaran

Nie

Gunel

2012

Wiley Encyclopedia of Composites

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A micromechanical damage model is proposed to predict the overall viscoplastic behavior and damage evolution in particulate polymer composites with imperfect interfacial bonds. The constituents are treated as three distinct phases, consisting of agglomerate of particles, bulk matrix, and interfacial transition zone around the agglomerate. The influence of the interfacial transition zone on the overall mechanical behavior of composites is studied analytically and experimentally. Test data on particle‐filled acrylic composites with three different interfacial properties are presented. The coefficient of thermal expansion (CTE) mismatch between the matrix and the filler particles is also introduced into the model. A damage evolution function based on irreversible thermodynamics is also introduced into the constitutive model to describe the degradation of the composite. The efficient general return‐mapping algorithm is exploited to implement the proposed unified damage‐coupled viscoplastic model into finite element formulation. Furthermore, the model predictions for uniaxial loading conditions are compared with the experimental data. Both the experimental results and analytical prediction show that interfacial conditions have great influence on the elastic properties of particle‐filled acrylic composites.

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Thermal fatigue behaviour and damage development in Al‐Alloys 6061 an 6061‐metal matrix composites

Heimann

Pohl²

2014

Materialwissenschaft Werkst

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Metal matrix composites (MMC) have become important materials in many technical fields. But above all there is a high amount of failures due to alternating stresses because of temperature changes. In this investigation the thermal fatigue behaviour of two metal matrix composites with different particle contents and their base material without particles are compared. It is shown that there are three main parameters influencing lifetime: the maximum temperature of the cycles, the particle content and the particle size. An increasing of these parameters means a decreasing of the cycle numbers before damage occurs.

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Thermal stress and strain in a metal matrix Composite with a Spherical Reinforcement Particle

Cited by 28 publications

References 27 publications

Residual stress generation in metal matrix composites after cooling

Residual stress generation in metal matrix composites after cooling

Damage Coupled Viscoplastic Modeling of Particulate Composites With Imperfect Interphase

Thermal fatigue behaviour and damage development in Al‐Alloys 6061 an 6061‐metal matrix composites

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