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Accelerated simulations of direct shear tests by physics engine
Computational Particle Mechanics, 2020Physics engines, originally developed to simulate physical and mechanical processes in modern video games, are increasingly used as a scientific computational platform in many disciplines due to their high computational efficiency. This study explores the feasibility of using an open-source physics engine, Project Chrono, to simulate direct shear tests.
Hantao He, Junxing Zheng, Zhaochao Li
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Physical interpretation of moment tensor and the energetics of shear faulting
Tectonophysics, 2019Abstract Moment tensor is a basic concept of source representation in seismology, established in the 1970s. On the basis of theoretical consideration to the equation of motion in continuum mechanics, we clarified the physical meaning of the Backus-Mulcahy moment tensor and derived a fundamental equation that the moment tensor of a seismic event is ...
Mitsuhiro Matsu’ura +2 more
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Physical modeling of the effects of crack density on shear wave
SEG Technical Program Expanded Abstracts 2014, 2014Summary We constructed set of crack samples using solid matrix material filled with thin penny-shaped inclusions, with crack density from 0% to 12%. The velocity of the shear wave parallel and perpendicular to the cracks were measured with the three sets ultrasonic transducers with different main frequencies, the relation between fast and slow shear ...
Lingling Wang +4 more
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Shear profiles and localization in simulations of granular materials.
Physical review. E, Statistical, nonlinear, and soft matter physics, 2002We present results from two-dimensional computer simulations of shearing granular layers, using a discrete element code, and applying a wide range of boundary conditions. We specifically investigate the distribution of shear within the granular layer and
E. Aharonov, D. Sparks
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Meso-Scale Shear Physics in Earthquake and Landslide Mechanics
2009I. Dynamics of frictional slip 1. Thermo- and hydro-mechanical processes along faults during rapid slip J.R. Rice, E.M. Dunham & H. Noda 2. Slip sequences in laboratory experiments as analogues to earthquakes associated with a fault edge S.M. Rubinstein, G. Cohen, J. Fineberg & Z. Reches 3.
Ioannis Vardoulakis +2 more
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Physics basis for a reversed shear tokamak power plant
Fusion Engineering and Design, 1997The reversed shear plasma configuration is examined as the basis for a tokamak fusion power plant. Analysis of plasma equilibrium and ideal MHD stability, bootstrap current and current drive, plasma vertical stability and position control, divertor physics and plasma power balance are used to determine the operating point parameters that maximize ...
T. K. Mau +6 more
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Pathways to Macroscale Order in Nanostructured Block Copolymers
, 1997Polymeric materials undergo dramatic changes in orientational order in response to dynamic processes, such as flow. Their rich cascade of dynamics presents opportunities to create and combine distinct alignments of polymeric nanostructures through ...
Zhong-Ren Chen +4 more
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Horizontal shear zones: physical modeling of formation and structure
Izvestiya, Physics of the Solid Earth, 2009On examples of ductile viscous materials (pastes), which demonstrated the deformational type of coagulation behavior and the reproduced zones of the horizontal shear of a brittle fracture, ductile flow, and intermediate types. The formation of coagulation agglomerates appeared well organized, both in terms of time and structurally. The found systems of
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Statistical physics of shear flow: a non-equilibrium problem
Contemporary Physics, 2010Complex fluids are easily and reproducibly driven into non-equilibrium steady states by the action of shear flow. The statistics of the microstructure of non-equilibrium fluids is important to the material properties of every complex fluid that flows, e.g.
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Nematogenic fluids in shear flow: A laboratory for nonequilibrium physics
1993We have briefly described some of the issues, techniques and anticipated phenomenology associated with the modification of the equilibrium isotropic-nematic transition in thermotropic liquid crystals due to applied shear stress. Whilst having significant implications in its own right — from the physics nonequilibrium phase transitions in complex fluids
Paul M. Goldbart, Peter D. Olmsted
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