Effects of Stacking Fault Energy on Fundamental Deformation Modes in Single Crystalline Magnesium by Molecular Dynamics Simulations
نویسندگان
چکیده
منابع مشابه
Mechanical Characteristics and Failure Mechanism of Nano-Single Crystal Aluminum Based on Molecular Dynamics Simulations: Strain Rate and Temperature Effects
Besides experimental methods, numerical simulations bring benefits and great opportunities to characterize and predict mechanical behaviors of materials especially at nanoscale. In this study, a nano-single crystal aluminum (Al) as a typical face centered cubic (FCC) metal was modeled based on molecular dynamics (MD) method and by applying tensile and compressive strain loadings its mechanical ...
متن کاملEffect of stacking fault energy on mechanism of plastic deformation in nanotwinned FCC metals
Starting from a semi-empirical potential designed for Cu, we have developed a series of potentials that provide essentially constant values of all significant (calculated) materials properties except for the intrinsic stacking fault energy, which varies over a range that encompasses the lowest and highest values observed in nature. These potentials were employed in molecular dynamics (MD) simul...
متن کاملAccelerated molecular dynamics simulations for characterizing plastic deformation in crystalline materials with cracks
Molecular Dynamics (MD) simulations are often used for comprehending evolving deformation mechanisms in materials at the atomic scale and also for assessing continuum-scale material properties. A major limitation of conventional MD simulations is that very small MD time-scale ( fs), restrict the achievable strain-rates to be much higher ( 10 or higher) than experimentally observed rates, needed...
متن کاملMolecular-Dynamics Study of Mechanical Deformation in Nano-Crystalline Aluminum
We report on molecular-dynamics (MD) simulations of tensile loading of nano-crystalline Al modeled by an embedded-atom method (EAM) potential. Usage of two different sample preparation methods of the nano-crystalline material allows us to compare mechanical properties for different sample qualities. A Voronoi-constructed polycrystal exhibits nearly no pores and has different mechanical properti...
متن کاملMolecular dynamics simulations on cyclic deformation of an epoxy thermoset
We use molecular dynamics simulations to study the thermo-mechanical response of a thermosetting polymer (diglycidyl ether of bisphenol A with 3,30diamino-Diphenylsulfone) subject to cyclic loading for a family of tri-axial deformation paths and two different load levels and strain rates. We focus on how the relative amount of deviatoric and volumetric deformation affects strain accumulation an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: MATERIALS TRANSACTIONS
سال: 2013
ISSN: 1345-9678,1347-5320
DOI: 10.2320/matertrans.maw201311