Zobrazeno 1 - 10
of 186
pro vyhledávání: '"Tschopp, M. A."'
Autor:
Turnage, S. A., Darling, K. A., Rajagopalan, M., Whittington, W. R., Tschopp, M. A., Peralta, P., Solanki, K. N.
Microstructure-property relationships of resistance spot welded 6061-T6 aluminum alloy lap joints were investigated via mechanical testing and microscopy techniques. Quasi-static tensile and novel shear punch tests were employed to measure the mechan
Externí odkaz:
http://arxiv.org/abs/1605.04251
Publikováno v:
Journal of Applied Physics 115 (2014) 233501
The objective of this research is to explore the formation/binding energetics and length scales associated with the interaction between He$_n$V clusters and grain boundaries in bcc $\alpha$-Fe. In this work, we calculated formation/binding energies f
Externí odkaz:
http://arxiv.org/abs/1401.5784
In this work, we explore the role of atomistic-scale energetics on liquid-metal embrittlement of Al due to Ga. Ab initio and molecular mechanics were employed to probe the binding energies of vacancies and segregation energies of Ga for <100>, <110>
Externí odkaz:
http://arxiv.org/abs/1312.2160
Publikováno v:
JOM (Journal of Materials) 66 (2014) 129-138
The macroscopic behavior of polycrystalline materials is influenced by the local variation of properties caused by the presence of impurities and defects. The effect of these impurities at the atomic scale can either embrittle or strengthen grain bou
Externí odkaz:
http://arxiv.org/abs/1310.3413
Molecular dynamics simulations are increasingly being used to investigate the structural evolution of polymers during mechanical deformation, but relatively few studies focus on the influence of boundary conditions on this evolution, in particular th
Externí odkaz:
http://arxiv.org/abs/1310.0728
Publikováno v:
Journal of Applied Physics, 115 (2014) 033503
The formation/binding energetics and length scales associated with the interaction between He atoms and grain boundaries in BCC alpha-Fe was explored. Ten different low Sigma grain boundaries from the <100> and <110> symmetric tilt grain boundary sys
Externí odkaz:
http://arxiv.org/abs/1309.6337
The role that grain boundary (GB) structure plays on the plasticity of interfaces with preexisting cracks and on the interface crack dynamics was investigated using MD for both <100> and <110> aluminum STGBs. In simulations with a crack at the interf
Externí odkaz:
http://arxiv.org/abs/1309.3634
Publikováno v:
Metallurgical Transactions A, 2013
Characterizing the spacing of primary dendrite arms in directionally-solidified microstructures is an important step for developing process-structure-property relationships by enabling the quantification of (i) the influence of processing on microstr
Externí odkaz:
http://arxiv.org/abs/1305.7380
Publikováno v:
Physical Chemistry Chemical Physics, 16 (2014) 6233-6249
In this work, we developed an interatomic potential for saturated hydrocarbons using the modified embedded-atom method (MEAM), a reactive semi-empirical many-body potential based on density functional theory and pair potentials. We parameterized the
Externí odkaz:
http://arxiv.org/abs/1305.2759
Publikováno v:
Modeling and Simulation in Materials Science and Engineering, 21(3) (2013) 035009
Segregation of impurities to grain boundaries plays an important role in both the stability and macroscopic behavior of polycrystalline materials. The research objective in this work is to better characterize the energetics and length scales involved
Externí odkaz:
http://arxiv.org/abs/1206.5385