Results 31 to 40 of about 17,463,981 (145)

A thermodynamic-based model for modeling thermo-elastoplastic behaviors of saturated clayey soils considering bound water dehydration

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2023
The non-isothermal deformation of soft mudrocks or clay soils is one of the most critical issues in energy and environmental related geotechnics. Clay-related geomaterials hold complex microstructure and mineral composition, which brings difficulty in ...
Mohammadhossein Sojoudi, Biao Li
doaj   +1 more source

Mechanical characteristics of saturated soils under thermo-cyclic loads

open access: yesYantu gongcheng xuebao, 2018
The impact of temperature on the large deformation of nuclear waste disposal, geothermal extraction and storage under cyclic load is should be considered.
ZHANG Sheng 1, 2, LIU Xue-qing 1, 2, XU Shuo 3, XIONG Yong-lin 4, ZHANG Feng 5
doaj   +1 more source

Super yield surface and subloading surface in the p−q plane.

open access: yes, 2021
Super yield surface and subloading surface in the p−q plane.
Jing Li (10611)   +5 more
core   +1 more source

A re-formulation of extended subloading surface model for cyclic plasticity within small strain framework: hyperelastic-based formulation and fully implicit return-mapping scheme

open access: yesNihon Kikai Gakkai ronbunshu, 2016
This paper presents a re-formulation of the extended subloading surface model within the ‘unconventional plasticity’ concept applicable to cyclic loadings. The small strain theory is adopted in the model formulation.
Takuya IGUCHI   +2 more
doaj   +1 more source

Application of a Viscoelastic Model to Creep Settlement of High‐Fill Embankments

open access: yesAdvances in Civil Engineering, Volume 2019, Issue 1, 2019., 2019
In order to predict the creep settlement of high‐fill embankments, the time‐dependent viscoelastic model of Poynting–Thomson (the standard linear solid) has been chosen to represent the creep behavior of soils. In the present study, the hereditary integral was applied to calculate the strain while the load increase is varied with time.
Liang Jia, Guangli Huang, Hui Yao
wiley   +1 more source

Subloading-overstress friction model

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The subloading-friction model proposed formerly is capable of describing the transition from the static to the kinetic friction and the recovery of static friction, which leads to the negative rate-sensitivity, i.e.
Koichi HASHIGUCHI   +4 more
doaj   +1 more source

Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials

open access: yesAdvances in Materials Science and Engineering, Volume 2018, Issue 1, 2018., 2018
This paper presents a constitutive modelling of the polycrystalline thin metal strip under a state of combined loading in microflexible rolling. The concept of grained inhomogeneity is incorporated into the classic Chaboche hardening model that accounts for the Bauschinger effect, in order to provide more precise description and analysis of the ...
Feijun Qu   +4 more
wiley   +1 more source

Cyclic plasticity model for fatigue with softening behaviour below macroscopic yielding

open access: yesMaterials & Design, 2019
Experimental observations have evidenced the insufficiency of yield surface definition via monotonic loading to guarantee adequate description of material behaviour under fatigue tests.
S. Tsutsumi, R. Fincato
doaj   +1 more source

Unified Description of the Mechanical Properties of Typical Marine Soil and Its Application

open access: yesShock and Vibration, Volume 2017, Issue 1, 2017., 2017
This study employed a modified elastoplastic constitutive model that can systematically describe the monotonic and cyclic mechanical behaviors of typical marine soils combining the subloading, normal, and superloading yield surfaces, in the seismic response analysis of three‐dimensional (3D) marine site.
Yongqiang Li   +5 more
wiley   +1 more source

A Mathematical Approach to Establishing Constitutive Models for Geomaterials

open access: yesJournal of Applied Mathematics, Volume 2013, Issue 1, 2013., 2013
The mathematical foundation of the traditional elastoplastic constitutive theory for geomaterials is presented from the mathematical point of view, that is, the expression of stress‐strain relationship in principal stress/strain space being transformed to the expression in six‐dimensional space.
Guang-hua Yang   +3 more
wiley   +1 more source

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