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Nasr Ghoniem

 

Ghoniem Caribbean

Nasr M. Ghoniem, Ph.D.
(Wisconsin, 1977)

ghoniem@ucla.edu
46-147M, Eng IV
(310) 825-4866


Link(s):

Laboratory for Materials In Extreme Environments (MATRIX)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Areas of Interest:

Damage and Failure of Materials in Mechanical Design; Mechanics and Physics of Material Defects (point defects, dislocations, voids and cracks); Material Degradation in Severe Environments (e.g. Nuclear, Fusion, Rocket Engines, etc.); Plasma and Laser Processing; Materials Non-equilibrium, Pattern formation and Instability Phenomena; Radiation Interaction with Materials (neutrons, electrons, particles, laser & photons).


Selected Recent Publications:

Characterization of thermomechanical damage on tungsten surfaces during long-duration plasma transients
D Rivera, T Crosby, A Sheng, NM Ghoniem
Journal of Nuclear Materials 455 (1), 500-506
2014
Recent Progress in Discrete Dislocation Dynamics and Its Applications to Micro Plasticity
G Po, MS Mohamed, T Crosby, C Erel, A El-Azab, N Ghoniem
JOM 66 (10), 2108-2120
2014
Singularity-free dislocation dynamics with strain gradient elasticity
G Po, M Lazar, D Seif, N Ghoniem
Journal of the Mechanics and Physics of Solids 68, 161-178
2014
A stochastic differential equations approach for the description of helium bubble size distributions in irradiated metals
D Seif, NM Ghoniem
Journal of Nuclear Materials
2014
Understanding the Threshold Conditions for Dislocation Transmission from Tilt Grain Boundaries in FCC Metals under Uniaxial Loading
NJ Burbery, R Das, G Po, N Ghoniem
Applied Mechanics and Materials 553, 28-34
2014
A variational formulation of constrained dislocation dynamics coupled with heat and vacancy diffusion
G Po, N Ghoniem
Journal of the Mechanics and Physics of Solids 66, 103-116
2014
Modeling Plastic Deformation of Post-irradiated Copper Micro-pillars
T Crosby, G Po, NM Ghoniem
Journal of Nuclear Materials
2014
Shock-induced plasticity and the Hugoniot elastic limit in copper nano films and rods
D Seif, G Po, R Crum, V Gupta, NM Ghoniem
Journal of Applied Physics 115 (5), 054301
2014
Ultrahigh strain-rate bending of copper nanopillars with laser-generated shock waves
HA Colorado, A Navarro, SV Prikhodko, JM Yang, N Ghoniem, V Gupta
Journal of Applied Physics 114 (23), 233510
2013
Development of micro-engineered textured tungsten surfaces for high heat flux applications
S Sharafat, A Aoyama, B Williams, N Ghoniem
Journal of Nuclear Materials 442 (1), S302-S308
2013
Multiphysics model of thermomechanical and helium-induced damage of tungsten during plasma heat transients
T Crosby, NM Ghoniem
Journal of Nuclear Materials 442 (1), S261-S266
2013
Effect of anisotropy, SIA orientation, and one-dimensional migration mechanisms on dislocation bias calculations in metals
D Seif, NM Ghoniem
Journal of Nuclear Materials 442 (1), S633-S638
2013
Continuum modeling of plastic flow localization in irradiated fcc metals
G Po, N Ghoniem
Journal of Nuclear Materials 442 (1), S607-S611
2013
Deformation mechanisms in ferritic/martensitic steels and the impact on mechanical design
NM Ghoniem, G Po, S Sharafat
Journal of Nuclear Materials 441 (1), 704-712
2013
Biaxial strain effects on adatom surface diffusion on tungsten from first principles
Z Chen, N Ghoniem
Physical Review B 88 (3), 035415
2013
Fracture mechanics of propagating 3-D fatigue cracks with parametric dislocations
A Takahashi, NM Ghoniem
Philosophical Magazine 93 (20), 2662-2679
2013
Partitioning of elastic energy in open-cell foams under finite deformations
R Harb, E Taciroglu, N Ghoniem
Acta Materialia 61 (5), 1454-1468
2013
Effects of biaxial strain on diffusivity of low index tungsten surfaces
Z Chen, N Ghoniem
APS Meeting Abstracts 1, 40010
2013
The influence of laser-induced nanosecond rise-time stress waves on the microstructure and surface chemical activity of single crystal Cu nanopillars
G Youssef, R Crum, SV Prikhodko, D Seif, G Po, N Ghoniem, ...
Journal of applied physics 113 (8), 084309
2013