Results 31 to 40 of about 125 (106)
Mechanical characteristics of saturated soils under thermo-cyclic loads
Yantu 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
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Nihon 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
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Application of a Viscoelastic Model to Creep Settlement of High‐Fill Embankments
Advances 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
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Subloading-overstress friction model
Nihon 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
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Analysis of Springback Behaviour in Micro Flexible Rolling of Crystalline Materials
Advances 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
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Cyclic plasticity model for fatigue with softening behaviour below macroscopic yielding
Materials & 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
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Unified Description of the Mechanical Properties of Typical Marine Soil and Its Application
Shock 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
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A Mathematical Approach to Establishing Constitutive Models for Geomaterials
Journal 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
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International Journal for Numerical and Analytical Methods in Geomechanics, Volume 49, Issue 5, Page 1420-1436, 10 April 2025.ABSTRACT In this work, a fatigue crack propagation model is proposed using the two‐dimensional discrete element method (DEM). The challenge lies in describing the small progressive fatigue crack growth within a single cycle, which is typically much smaller than the size of the smallest particles, making it difficult to continuously capture the loss of ...
Lei Ma +3 more
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Revisiting strain localization analysis for elastoplastic constitutive models in geomechanics
International Journal for Numerical Methods in Engineering, Volume 125, Issue 24, 30 December 2024.Abstract The localization of deformations plays a crucial role in the failure of granular materials. Concerning classical continuum constitutive models, the localization of deformations is considered to be connected to the loss of ellipticity of the governing rate equilibrium equations, and entails mesh sensitivity in finite element simulations.
Paul Hofer +3 more
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