Micromechanical Modeling and Simulation of the Elastoplastic Behavior of Composite Materials

2020 ◽  
pp. 716-724
Author(s):  
Zoubida Sekkate ◽  
Ahmed Aboutajeddine ◽  
Mounia Bennoura ◽  
Abbass Seddouki
Keyword(s):  
Composite Materials ◽  
Modeling And Simulation ◽  
Micromechanical Modeling ◽  
Elastoplastic Behavior

scholarly journals Modeling and Simulation of Composite Materials

JOM ◽  
2019 ◽  
Vol 71 (11) ◽  
pp. 3949-3950 ◽  
Author(s):  
Rakesh K. Behera ◽  
Dinesh Pinisetty ◽  
Dung D. Luong
Keyword(s):  
Composite Materials ◽  
Modeling And Simulation

scholarly journals Modeling and Simulation of Composite Materials for SLS-Based 3D Printing

2020 ◽  
Vol 20 (2) ◽  
pp. 135-142
Author(s):  
Hazrat Ali ◽  
Gaziz Yerbolat ◽  
Anuar Abilgaziyev
Keyword(s):  
Composite Materials ◽  
3D Printing ◽  
Modeling And Simulation

Failure of Porous Metals Based on Strain Energy Density Criterion

2020 ◽  
Vol 142 (4) ◽  
Author(s):  
A. Y. Elruby ◽  
Sam Nakhla
Keyword(s):  
Strain Energy ◽  
Elastic Response ◽  
Micromechanical Modeling ◽  
Plastic Behavior ◽  
Extensive Literature ◽  
Loading Capacity ◽  
Porous Metals ◽  
Elastoplastic Behavior ◽  
Damage Process ◽  
Extensive Literature Search

Abstract Porosity in metals is well known to influence the mechanical behavior, namely, the elastic response, the plastic behavior, and the material loading capacity. The main focus of the current work is to investigate the failure of porous metals. Extensive literature search was conducted to identify failure mechanisms associated with the increase of porosity for up to 15% by volume. Consequently, micromechanical modeling is utilized to investigate the damage process at microlengths. Finally, a complete macromechanical modeling approach is proposed for specimen-sized models. The approach utilizes the extended Ramberg–Osgood relationship for the elastoplastic behavior, while the failure is predicted using a strain energy-based failure criterion capturing the effect of porosity. The proposed approach is validated against several testing results for different metals at various porosity levels.

A Computational Approach for the Constitutive Modeling of Elastoplastic Behavior of Metal Matrix Composites

2016 ◽  
Vol 14 (05) ◽  
pp. 1750058 ◽  
Author(s):  
M. U. Siddiqui ◽  
Abul Fazal M. Arif
Keyword(s):  
Composite Materials ◽  
Metal Matrix Composites ◽  
Metal Matrix ◽  
Three Dimensional ◽  
Constitutive Models ◽  
Computational Approach ◽  
Matrix Composites ◽  
Elastoplastic Behavior ◽  
Alumina Composite

Computational homogenization provides an excellent tool for the design of composite materials. In the current work, a computational approach is presented that is capable of estimating the elastic and rate-independent plastic constitutive behavior of metal matrix composites using finite element models of representative volume elements (RVEs) of the composite material. For this purpose, methodologies for the generation of three-dimensional computational microstructures, size determination of RVEs and the homogenization techniques are presented. Validation of the approach is carried out using aluminum–alumina composite samples prepared using sintering technique. Using the homogenized material response, effective constitutive models of the composite materials have been determined.

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