Theoretical calculation of anisotropie creep and stress-strain behavior for a class of metal-matrix composites

1993 ◽  
Vol 24 (9) ◽  
pp. 2049-2059 ◽  
Author(s):  
K. Murali ◽  
G. J. Weng
Keyword(s):  
Theoretical Calculation ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Matrix Composites ◽  
Stress Strain ◽  
Strain Behavior

Cyclic Stress-Strain Behavior of Particle Reinforced Metal Matrix Composites

1998 ◽  
Vol 38 (10) ◽  
pp. 1595-1600 ◽  
Author(s):  
N Chawla ◽  
C Andres ◽  
J.W Jones ◽  
J.E Allison
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Cyclic Stress ◽  
Matrix Composites ◽  
Stress Strain ◽  
Strain Behavior

Cyclic Stress-Strain Behavior and Thermomechanical Effect in Metal Matrix Composites

2005 ◽  
Vol 9 ◽  
pp. 41-50
Author(s):  
Hong Gun Kim
Keyword(s):  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Micromechanical Model ◽  
Internal Field ◽  
Cyclic Stress ◽  
Internal Stresses ◽  
Matrix Composites ◽  
Stress Strain ◽  
Strain Behavior ◽  
Thermomechanical Effect

A micromechanical model based on continuum analysis has been investigated by using finite element analysis (FEA) in discontinuous metal matrix composites (DMMC). To assess the tensile and compressive constitutive responses, a cyclic stress-strain behavior has been performed. For analysis procedure, the elastoplastic FEA and the regularly aligned axisymmetric single fiber model have been implemented to evaluate the internal field quantities. Accordingly, the fiber and matrix internal stresses were investigated for the constrained representative volume element (RVE). Further, the local plasticity in the matrix were described during loading and unloading precesses, which can predict the damage mechanisms as well as strengthening mechanisms. On the other hand, a thermoelasto- plastic analysis has been performed using FEA for the application to the continuum behavior in a discontinuous metal matrix composite. The internal field quantities of composite as well as overall composite behavior and an experiment was demonstrated to compare with the numerical simulation. As the procedure, the reasonably optimized FE mesh generations, the appropriate imposition of boundary conditions, and the relevant postprocessing such as elasto-plastic thermo-mechanical analysis were taken into account. For micromechanical model, the temperature dependent material properties and precipitation hardening effects have been employed to investigate field quantities. It was found that the residual stresses are induced substantially by the temperature drop during heat treatment and that the FEA results give a good agreement with experimental data.

scholarly journals Predictive Computational Model for Damage Behavior of Metal-Matrix Composites Emphasizing the Effect of Particle Size and Volume Fraction

Materials ◽  
2021 ◽  
Vol 14 (9) ◽  
pp. 2143
Author(s):  
Shaimaa I. Gad ◽  
Mohamed A. Attia ◽  
Mohamed A. Hassan ◽  
Ahmed G. El-Shafei
Keyword(s):  
Finite Element ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Volume Fraction ◽  
Particulate Composites ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Zone Method ◽  
Stress Strain ◽  
The Matrix

In this paper, an integrated numerical model is proposed to investigate the effects of particulate size and volume fraction on the deformation, damage, and failure behaviors of particulate-reinforced metal matrix composites (PRMMCs). In the framework of a random microstructure-based finite element modelling, the plastic deformation and ductile cracking of the matrix are, respectively, modelled using Johnson–Cook constitutive relation and Johnson–Cook ductile fracture model. The matrix-particle interface decohesion is simulated by employing the surface-based-cohesive zone method, while the particulate fracture is manipulated by the elastic–brittle cracking model, in which the damage evolution criterion depends on the fracture energy cracking criterion. A 2D nonlinear finite element model was developed using ABAQUS/Explicit commercial program for modelling and analyzing damage mechanisms of silicon carbide reinforced aluminum matrix composites. The predicted results have shown a good agreement with the experimental data in the forms of true stress–strain curves and failure shape. Unlike the existing models, the influence of the volume fraction and size of SiC particles on the deformation, damage mechanism, failure consequences, and stress–strain curve of A359/SiC particulate composites is investigated accounting for the different possible modes of failure simultaneously.

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