Results 61 to 70 of about 17,463,981 (145)

EXTENDED TANGENTIAL-SUBLOADING SURFACE MODEL FOR GENERAL LOADING BEHAVIOR OF SOILS : APPLICATION TO NONPROPORTIONAL LOADINGS [PDF]

open access: yes
The conventional elastoplastic model premising that the interior of yield surface is a purely elastic domain is incapable of describing the plastic deformation by the rate of stress inside the yield surface. Thus, it is inapplicable to the description of
Setouchi, Hideki   +3 more
core  

Constitutive Equations of Soils Based on the Subloading Surface Concept

open access: yes, 1994
Various cyclic plasticity models have been proposed in the past. Among them the subloading surface model (Hashiguchi, 1989) only is regraded to have the pertinent structure adaptable to the prediction of cyclic loading behavior of materials as has been ...
Hashiguchi, Koichi, 橋口, 公一
core  

Unified description of dry and fluid frictions by subloading-overstress friction model [PDF]

open access: yes, 2019
The subloading-overstress friction model is formulated for the unified description of the dry and the fluid frictions which exhibit the negative and the positive rate dependences, i.e.
Hashiguchi, Koichi, Ozaki, Toshiyuki
core   +2 more sources

Multi-material topology optimization based on finite strain subloading surface nonlocal elastoplasticity [PDF]

open access: yes
This study is dedicated to the multi-material topology optimization formulation (MMTO) for finite strain nonlocal elastoplasticity. The subloading surface model is newly incorporated into the primal problem to achieve the gradual change of the ...
Han, Jike   +4 more
core   +1 more source

Recovering Accurate Geometric Surface Model from Passive Stereo Vision

open access: yes, 1998
Our work is concerned with obtaining high-fidelity 3D surface models from passive polynocular stereo. In this report we formulate our effort towards refining a reconstructed geometric surface model.
Vit Zyka, Surface Model
core  

Subloading surface plasticity model algorithm for 3D subsidence analyses above gas reservoirs [PDF]

open access: yes, 2011
The coupled hydro-mechanical state in soils coming from consolidation/subsidence processes and undergoing plasticity phenomena is here evaluated by means of the subloading surface model.
Fincato, Riccardo L.   +1 more
core   +2 more sources

Ductile damage evolution law for proportional and non-proportional loading conditions

open access: yesFracture and Structural Integrity, 2018
The characterization of ductile damage evolution, and its description, have been the object of extensive research in the continuum damage mechanic field.
Riccardo Fincato   +2 more
doaj  

Generalized subloading surface model with tangential stress rate effect

open access: yesJournal of applied mechanics, 2005
The traditional elastoplastic constitutive equation, which is inde- pendent of the stress rate component tangential to the yield surface predicts an unrealistically stiff mechanical response for the nonproportional loading proc- ess in which the stress rate has a component tangential to the yield surface.
openaire   +2 more sources

Deformation behavior for sand subjected to a cyclic loading of a circular stress path by the subloading surface model with tangential stress rate effect [PDF]

open access: yes
The subloading surface model which fulfills the mechanical requirements for constitutive equations, i.e. the continuity,the smoothness conditions, the work rate-stiffness and the Masing effect relaxation has been extended so as to describe the inelastic ...
Setouchi, Hideki   +7 more
core  

Finite deformation of particulate geomaterials: frictional and anisotropic Critical State elasto-plasticity [PDF]

open access: yes, 2011
This thesis is concerned with the theoretical development and numerical implementation of efficient constitutive models for the analysis of particulate media (specifically clays) in structures undergoing geometrically non-linear behaviour.
Coombs, W.M.   +2 more
core  

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