Multi-scale Modeling to Obtain an Equivalent Homogeneous Material for Al6061-T6/Al2 O3 Composite and its Application in Machining Simulation, Ph.D. Dissertation Sharif University of Technology ; Movahedy, Mohammad Reza (Supervisor) ; Sohrabpour, Saeed (Supervisor) ; Mahnama, Maryam ($item.subfieldsMap.e)
Abstract
In this study, an equivalent homogenous material model is proposed for Al6061-T6/Al2O3 metal matrix composite using the hierarchical multi-scale modeling, and the capability of this model in simulation of machining process of this composite is investigated. Molecular dynamic study of the Al/Al2O3 interface is used to obtain the effect of crystallographic orientations and terminations on the tensile and shear strengths at the interface. The Reaxff potential function is employed to estimate the traction-separation relations at Al/Al_2 O_3 interface at temperatures of 300, 400, and 500 K. Next, a cohesive zone model is used at the micro-scale to simulate the interface between the matrix and...
Cataloging briefMulti-scale Modeling to Obtain an Equivalent Homogeneous Material for Al6061-T6/Al2 O3 Composite and its Application in Machining Simulation, Ph.D. Dissertation Sharif University of Technology ; Movahedy, Mohammad Reza (Supervisor) ; Sohrabpour, Saeed (Supervisor) ; Mahnama, Maryam ($item.subfieldsMap.e)
Abstract
In this study, an equivalent homogenous material model is proposed for Al6061-T6/Al2O3 metal matrix composite using the hierarchical multi-scale modeling, and the capability of this model in simulation of machining process of this composite is investigated. Molecular dynamic study of the Al/Al2O3 interface is used to obtain the effect of crystallographic orientations and terminations on the tensile and shear strengths at the interface. The Reaxff potential function is employed to estimate the traction-separation relations at Al/Al_2 O_3 interface at temperatures of 300, 400, and 500 K. Next, a cohesive zone model is used at the micro-scale to simulate the interface between the matrix and...
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