Results 11 to 20 of about 125 (106)

A Constitutive Model for Overconsolidated Structured Soils Using Structural Variable

open access: yesShock and Vibration, 2021
Due to the influence of soil structure, structured soils exhibit significantly different mechanical behavior compared to the reconstituted soils having the same material.
Wugang Li   +3 more
doaj   +2 more sources

Subloading Surface Model and Experimental Study of Coal Failure under Cyclic Loading

open access: yesAdvances in Materials Science and Engineering, 2019
The fatigue damage of rock is an important factor affecting the stability of rock structure. In this paper, the mechanical response of coal under cyclic loading was studied.
Si-fei Liu   +4 more
doaj   +2 more sources

An EVP Double‐Yield Nonstationary Flow Surface Model for Soft Clay

open access: yesAdvances in Civil Engineering, Volume 2022, Issue 1, 2022., 2022
According to experimental findings, soft clay has compression and shear creep. The goal of the study is to develop an elastic‐viscoplastic (EVP) model for the viscous behavior of soft clay. The new EVP model is deduced from the associated flow rule, Yin’s double‐yield surface theory, and the critical state soil mechanics. The nonstationary flow surface
Liucheng Chang   +3 more
wiley   +1 more source

Anisotropic subloading surface Cam‐clay plasticity model with rotational hardening: Deformation gradient‐based formulation for finite strain

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 45, Issue 16, Page 2321-2370, November 2021., 2021
Abstract This study is aimed at developing an anisotropic elastoplastic constitutive model for geomaterials at finite strain and its stress calculation algorithm based on the fully implicit return‐mapping scheme. The Cam‐clay plasticity model is adopted as a specific prototype model of geomaterials.
Yuki Yamakawa   +7 more
wiley   +1 more source

Reloading in barodesy employing the asymptotic state boundary surface

open access: yesInternational Journal for Numerical and Analytical Methods in Geomechanics, Volume 45, Issue 14, Page 2113-2129, 10 October 2021., 2021
Abstract The reloading behaviour of the soil is dominated by effects of the recent deformation history as well as by the overall stress history, indicated by overconsolidation. The stiffness of an overconsolidated soil is higher than the stiffness of normally consolidated soil.
Manuel Bode   +2 more
wiley   +1 more source

Field Measurement and Numerical Simulation of Train‐Induced Vibration from a Metro Tunnel in Soft Deposits

open access: yesAdvances in Civil Engineering, Volume 2021, Issue 1, 2021., 2021
Train‐induced vibration is increasingly attracting people’s concern nowadays. In the coastal areas, many metro tunnels are built in the soft deposits, so the train‐induced vibration effect is more serious. Nevertheless, the existing research studies mainly focus on the dynamic responses in the tunnel or on the ground surface while vibration ...
Qiang Huang   +5 more
wiley   +1 more source

Constitutive Modelling of Temperature-Dependent Behaviour of Soft Rocks with Fractional-Order Flow Rule

open access: yesApplied Sciences, 2022
This paper regards soft rock as a heavily overconsolidated clay and proposes a new fractional elastoplastic model to describe its temperature-dependent mechanical behaviour.
Hai-Chao Li   +3 more
doaj   +1 more source

Fatigue life assessment of a non-load carrying fillet joint considering the effects of a cyclic plasticity and weld bead shape [PDF]

open access: yesFracture and Structural Integrity, 2016
Fatigue life depends strongly on irreversible contributions that accumulate during cyclic loading and unloading of structures. However, the correct identification of the loading path in terms of uniaxial or multi-axial stress states, proportional or non ...
S. Tsutsumi   +3 more
doaj   +3 more sources

Numerical modelling of ductile damage mechanics coupled with an unconventional plasticity model [PDF]

open access: yesFracture and Structural Integrity, 2016
Ductility in metals includes the material’s capability to tolerate plastic deformations before partial or total degradation of its mechanical properties.
R. Fincato, S. Tsutsumi
doaj   +3 more sources

Elastoplastic deformation analysis by return-mapping and consistent tangent modulus tensor based on subloading surface model (1st Report, Formulation of return-mapping)

open access: yesNihon Kikai Gakkai ronbunshu, 2014
The subloading surface model possesses the automatic controlling function to pull back the stress to the yield surface. However, this function is not concerned with the subyield state, i.e.
Koichi HASHIGUCHI   +2 more
doaj   +1 more source

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