Baltimore, MD 20036-1984
United States
Johns Hopkins University
Stick-slip, Friction coefficient, Rough spheres, Elasto-plastic contact, Contact anisotropy.
Laser sheets and high-speed video used to estimate 3D ejecta fragment velocities.Impact in concrete targets characterized: impact flash, fragments, spall, dust cloud.Ejecta velocities studied as function of target and impact conditions.
heterogeneity, Mesoscale Modeling, X-ray tomography, x-ray diffraction, representative volume element
mesoscale models, x-ray tomography, image segmentation, aggregates, microstructure analysis
Concrete, Aggregate Stresses, Scanning 3D X-ray Diffraction, 3D X-ray Diffraction, Heterogeneity
concrete, impact, damage, material point method, crater morphology, Weibull strength
Solid particle erosion, Liquid particle erosion, Finite element modeling, Impact, Damage accumulation
Solid particle erosion, Liquid particle erosion, Finite element modeling, Impact
powder compaction, shock waves, granular materials, plate impact, finite elements, pore collapse, porosity models
powder compaction, x-ray imaging, granular materials, plate impact, finite elements
granular, instability, fluctuations, force chain, rate effects
granular materials, rapid compaction, plate impact experiments, x-ray imaging, mesoscale modeling
Cemented granular materials, Uni-axial compression, X-Ray Computed Tomography
Concrete, Crack deflection, Crack Penetration, Damage modeling, X-ray imaging
concrete, High strain rate, projectile impact, multi scale damage, nano indentation
concrete, High strain rate, projectile impact, anisotropic damage, micromechanics modeling
