Numerical study of mesoscale surface roughening in aluminum polycrystals under tension

Size effect on deformation behavior and ductile fracture in microforming of pure copper sheets considering free surface roughening

“…Suh et al [32] studied the combined effect of sample thickness and surface roughness on the uniaxial tensile property of aluminum sheet, and found the effect of surface roughness increases with the decrease of sheet thickness. Romanova et al [33] numerically investigated the effects of grain shape, loading state and boundary condition on the meso-scaled surface roughening of polycrystalline aluminum alloy under uniaxial tension deformation. They pointed out that the surface ridge and valley are caused by the developed micro-scale normal and shear stresses.…”

Crystal-plasticity based thermo-mechanical modeling of Al-components in integrated circuits

“…Surface roughening of (thin) metal films during plastic deformation is a common phenomenon [11][12][13][14][15]. There are different attempts to capture this effect via simulation.…”

“…There are different attempts to capture this effect via simulation. Romanova et al [12] suggest that the roughness evolution may be affected both by the mechanical anisotropy due to the grain shape and by the crystallographic anisotropy. They designed a realistic and representative grain structure with a pseudo crystal plasticity material model.…”

A Numerical Study of the Microscale Plastic Strain Localization in Friction Stir Weld Zones

“…Polycrystalline models with equiaxed and extended grains characteristic of the WN and TMAZ, respectively, were generated on regular 3×10 6 element meshes using a method of step-by-step packing (SSP) [15,16]. This method is based on a combination of analytical and simulation tools.…”