Results 41 to 50 of about 216 (120)
Characterization of Plastic Deformation in CuZr Metallic Glasses Subjected to the Rolling Process
Advances in Materials Science and Engineering, 2023 Using the rolling process, it is possible to induce multiple shear bands in the microstructure of metallic glasses (MGs) and improve the overall plasticity in the subsequent mechanical loadings.
Ramaswamy Sivaraman +4 more
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Elastic flow instabilities and macroscopic textures in graphene oxide lyotropic liquid crystals
npj 2D Materials and Applications, 2021 Graphene oxide (GO) forms a well-aligned lyotropic liquid crystal (LC) phase in aqueous dispersions at relatively low concentrations. Under a remarkably wide range of shear rates, we report hitherto unobserved shear-induced polarized light image patterns,
Jacek K. Wychowaniec +6 more
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EPJ Web of Conferences, 2017 Dense suspensions of non-Brownian particles may partially behave as thixotropic yield stress fluids. We study the flow of such fluids between two concentric cylinders using a phenomenological structural kinetics model.
Jenny Mathieu +4 more
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How to catch a shear band and explain plasticity of metallic glasses with continuum mechanics
Nature CommunicationsCapturing a shear band in a metallic glass during its propagation experimentally is very challenging. Shear bands are very narrow but extend rapidly over macroscopic distances, therefore, characterization of large areas at high magnification and high ...
Oleksandr Glushko +4 more
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Indentation-Induced Shear Band Formation in Thin-Film Multilayers
Frontiers in Materials, 2017 We report an exploratory investigation into the cause of shear band formation in multilayer thin films subject to nanoindentation. The material system considered here is composed of alternating aluminum (Al) and silicon carbide (SiC) nanolayers, atop a ...
Shannon Bigelow, Yu-Lin Shen
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Shear bands in metallic glasses are not necessarily hot
APL Materials, 2014 We have used the fusible tin coating method to detect shear band heating in amorphous Zr57Ti5Cu20Ni8Al10 loaded under quasi-static uniaxial compression.
Stephanie K. Slaughter +5 more
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Shear Banding and Cracking in Unsaturated Porous Media through a Nonlocal THM Meshfree Paradigm
GeosciencesThe mechanical behavior of unsaturated porous media under non-isothermal conditions plays a vital role in geo-hazards and geo-energy engineering (e.g., landslides triggered by fire and geothermal energy harvest and foundations).
Hossein Pashazad, Xiaoyu Song
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Critical packing in granular shear bands [PDF]
Physical Review E, 2007 In a realistic three-dimensional setup, we simulate the slow deformation of idealized granular media composed of spheres undergoing an axisymmetric triaxial shear test. We follow the self-organization of the spontaneous strain localization process leading to a shear band and demonstrate the existence of a critical packing density inside this failure ...
Fazekas, S., Török, J., Kertész, J.
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High pressure suppression of plasticity due to an overabundance of shear embryo formation
npj Computational MaterialsHigh pressure shear band formation is a critical phenomenon in energetic materials due to its influence on both mechanical strength and mechanochemical activation.
Brenden W. Hamilton, Timothy C. Germann
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Imperfection sensitivity of shear banding in gradient-dependent Cam-clay plasticity model
Computer Assisted Methods in Engineering and Science, 2017 The paper deals with the numerical simulation of strain localization in granular two-phase material. A gradient enhancement of modified Cam-clay model is introduced to overcome the problem of spurious discretization sensitivity of finite element ...
Anna Stankiewicz
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