TY - JOUR
T1 - Effect of particle orientation anisotropy on the tensile behavior of metal matrix composites
T2 - Experiments and microstructure-based simulation
AU - Ganesh, V. V.
AU - Chawla, Nikhilesh
N1 - Funding Information:
The authors are grateful for financial support from the Office of Naval Research (Dr. A.K. Vasudevan, Program manager, Contract No. N000140110694).
PY - 2005/1/25
Y1 - 2005/1/25
N2 - Deformation processing of particle reinforced metal matrix composites induces preferential orientation of the reinforcement particles. Thus, the orientation anisotropy of the reinforcement will strongly influence the mechanical behavior of the composite. In this study, the effect of reinforcement orientation anisotropy on the mechanical behavior of extruded 2080 Al matrix composite was examined. Microstructure characterization showed a preferred orientation of the reinforcement particles parallel to the extrusion axis, although the degree of orientation decreased with increasing reinforcement volume fraction. Young's modulus and tensile strength in the longitudinal orientation (parallel to the extrusion axis) were higher than that in the transverse orientation (perpendicular to the extrusion axis). The particle orientation-induced changes in stress-strain behavior were modeled using a microstructure-based finite element method approach, yielding good agreement with experimental results. The relationship between tensile behavior of the composites, especially elastic modulus, to the degree of anisotropy in orientation of the reinforcement particles is discussed.
AB - Deformation processing of particle reinforced metal matrix composites induces preferential orientation of the reinforcement particles. Thus, the orientation anisotropy of the reinforcement will strongly influence the mechanical behavior of the composite. In this study, the effect of reinforcement orientation anisotropy on the mechanical behavior of extruded 2080 Al matrix composite was examined. Microstructure characterization showed a preferred orientation of the reinforcement particles parallel to the extrusion axis, although the degree of orientation decreased with increasing reinforcement volume fraction. Young's modulus and tensile strength in the longitudinal orientation (parallel to the extrusion axis) were higher than that in the transverse orientation (perpendicular to the extrusion axis). The particle orientation-induced changes in stress-strain behavior were modeled using a microstructure-based finite element method approach, yielding good agreement with experimental results. The relationship between tensile behavior of the composites, especially elastic modulus, to the degree of anisotropy in orientation of the reinforcement particles is discussed.
KW - Aluminum composites
KW - Anisotropy
KW - Deformation behavior
KW - Elastic modulus
KW - Microstructure-based finite element modeling
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U2 - 10.1016/j.msea.2004.09.017
DO - 10.1016/j.msea.2004.09.017
M3 - Article
AN - SCOPUS:11344278820
SN - 0921-5093
VL - 391
SP - 342
EP - 353
JO - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
JF - Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing
IS - 1-2
ER -