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Strain localization in multipotential elastoplasticity
International Journal for Numerical Methods in Engineering, 1992AbstractConditions of strain localization in multipotential elastoplasticity are studied in this paper for a strain discontinuity mode. The formulation is specialized to the case of a general anisotropic Mohr‐Coulomb model, where plastic shear deformations are envisaged as the contribution of microstrains in several planes.
Aubry, Denis, Modaressi, Arezou
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Reviews in Mineralogy and Geochemistry, 2022
Yan Lavallée, Jackie E. Kendrick
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Yan Lavallée, Jackie E. Kendrick
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Strain localization under dynamic loading
Technical Physics, 2013A spallation model of strain localization is suggested according to which localization bands under pulsed loading result from unloading wave interference such that negative stresses in the extension zone are lower than the ultimate strength of the material.
A. F. Belikova +2 more
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Local Strain Energy Density Concept
2013The local strain energy density (SED) approach is elaborated for strength assessments in respect of brittle fracture and high-cycle fatigue. Pointed and rounded (blunt) V-notches subjected to tensile loading (mode 1) are primarily considered, occasionally extended to multiaxial conditions (mode 3, mixed mode 1 and 2).
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Objective modeling of strain localization
Revue Française de Génie Civil, 2002ABSTRACT This paper provides an elementary introduction into modeling of localized inelastic processes such as cracking or formation of shear bands. The basic concepts are explained using a simple one-dimensional example. It is shown that a stress-strain law with softening used in a standard continuum description leads to physically meaningless results
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On brittle-ductile strain localization
2020<p>The classification of the strain localization modes is attempted around brittle-ductile transition. The stresses are high. The are a number of suspects: earthquake-like thermal runaway (Braeck et al. 2009), stable sliding as shear heating zones oriented 45 degrees to the principal stresses (Kiss et al.
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Strain Localization in Granular Materials
1998Contemporary localization theory [99] is a natural extension of Mohr’s [50] original strength theory published in the year 1900 in a milestone paper with the title, “Welche Umstande bedingen die Elastizitatsgrenze and den Bruch eines Materials?”. Mohr’s question cannot be answered without resorting to experiments carefully and systematically run ...
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Plastic Deformation and Strain Localizations
2020This chapter gives an overview of basic knowledge on plastic deformation and strain localizations. The chapter starts with general remarks on plastic deformation continuing with details on deformation mechanisms such as dislocation glide and twinning were shortly summarized focusing for most common crystal lattices in metallic materials: (i) face ...
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