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Direct observation of frictional ignition in dropped HMX-based polymer-bonded explosives
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Publication trends in forensic science research: Friction ridge discipline
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On the impact of proppants shape, size distribution, and friction on adaptive fracture conductivity in EGS
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Determining cohesive parameters for modeling interfacial fracture in dissimilar-metal friction stir welded joints
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Investigation of mechanical and frictional performance for bismaleimide composites reinforced by hyperbranched polysiloxane-cyclophosphazene functionalized rGO/MoS2
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Multiscale formulation of frictional contact mechanics at the pore scale
Direct numerical simulation (DNS) yields the highest fidelity predictions of mechanical deformation at the pore scale, but is prohibitively expensive for analyzing large or many samples. Discrete element methods (DEM) are an efficient alternative, but are limited to granular media and incapable of estimating or controlling prediction errors. We present a pore-level multiscale method (PLMM) that approximates DNS efficiently and with controllable accuracy. We focus on the linear elastic response of a consolidated geologic porous medium with arbitrary microstructure, heterogeneous mineralogy, containing cracks or defects. PLMM decomposes the solid phase into non-overlapping subdomains, on which local basis functions are constructed. The bases are then coupled with a global interface problem that accounts for slip or stick contact conditions between the subdomains. PLMM produces an initial, but accurate, approximation to DNS that can be iteratively improved. It is amenable to parallelism and allows for different mesh, models, and physics in each subdomain. An algebraic interpretation of PLMM as a preconditioner is also presented to allow non-intrusive implementation into existing solvers. Lastly, this work extends previous developments of PLMM in fluid dynamics to solid mechanics and enables future extensions towards modeling coupled flow and mechanics problems.
Effect of corrosion behavior of cast and extruded ZK60 magnesium alloys processed via friction extrusion
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Process-specific design strategy enables exceptional as-deposited strength-ductility synergy in novel Al–Ce alloys via additive friction stir deposition (AFSD)
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How to get noWear? – A new take on the design of in-situ formed high performing low-friction tribofilms
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Fabrication of bismuth-telluride thermoelectric wires by friction extrusion
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Material flow visualization during friction stir welding using high-speed X-ray imaging
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Processing-microstructure-property correlations for temperature-controlled friction stir welding of 304L SS plates
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