Results 31 to 40 of about 111,262 (295)

Numerical simulation of bearing capacity of a strip footing on strain-softening soil ground

open access: yesYantu gongcheng xuebao, 2019
To overcome the mesh sensitivity induced by strain softening, an implicit gradient plasticity model is put forward to simulate the bearing capacity of a rigid strip foundation on strain-softening soil.
LÜ Xi-lin 1, 2, XUE Da-wei 1, 2
doaj   +1 more source

A New Unified Solution for Circular Tunnel Based on a Four-Stage Constitutive Model considering the Intermediate Principal Stress

open access: yesAdvances in Civil Engineering, 2018
Based on the triaxial test, the elasto-perfectly plastic strain-softening damage model (EPSDM) is proposed as a new four-stage constitutive model. Compared with traditional models, such as the elasto-brittle-plastic model (EBM), elasto-strain-softening ...
Liang Chen   +5 more
doaj   +1 more source

Factor of safety of strain-softening slopes

open access: yesJournal of Rock Mechanics and Geotechnical Engineering, 2020
Stability analysis of strain-softening slopes is carried out using the shear strength reduction method and Mohr-Coulomb model with degrading cohesion and friction angle.
Hossein Rafiei Renani, C. Derek Martin
doaj   +1 more source

High-temperature mechanical behavior of polycrystalline yttrium-doped barium cerate perovskite [PDF]

open access: yes, 2011
The high-temperature mechanical properties of the mixed ionic-electronic conductor perovskite BaCe0.95Y0.05O3-δ with average grain size of 0.40μm have been studied in compression between 1100 and 1300°C in air at different initial strain rates.
Jiménez Melendo, Manuel   +4 more
core   +1 more source

The mechanism of stability of fault system inducing roof water-inrush

open access: yesEnergy Exploration & Exploitation, 2020
This paper analyzes the strain stability during mining, which often causes a water inrush. Mining couses costant stress on the fault zone, which is a loading process on the system composed of fault material and surrounding medium.
Ma Zhijing   +7 more
doaj   +1 more source

Coarse-grained description of localized inelastic deformation in amorphous metals [PDF]

open access: yes, 2009
The sequence of shear transformation events that lead to a shear band transition in amorphous metals is described by a spatially random coarse-grained model calibrated to obey the thermodynamic scaling relations that govern flow in a real glass.
Konrad Samwer   +3 more
core   +1 more source

Softening and Yielding of Soft Glassy Materials

open access: yes, 2017
Solids deform and fluids flow, but soft glassy materials, such as emulsions, foams, suspensions, and pastes, exhibit an intricate mix of solid and liquid-like behavior. While much progress has been made to understand their elastic (small strain) and flow
Dagois-Bohy, Simon   +3 more
core   +1 more source

Dynamic induced softening in frictional granular material investigated by DEM simulation [PDF]

open access: yes, 2017
A granular system composed of frictional glass beads is simulated using the Discrete Element Method. The inter-grain forces are based on the Hertz contact law in the normal direction with frictional tangential force.
Carmeliet, Jan   +4 more
core   +3 more sources

Modelling, identification and application of phenomenological constitutive laws over a large strain rate and temperature range [PDF]

open access: yes, 2013
A review of the different phenomenological thermo-viscoplastic constitutive models often applied to forging and machining processes is presented. Several of the most common models have been identified using a large experimental database (Hor et al., 2013)
GERMAIN, Guénaël   +3 more
core   +8 more sources

Numerical Modeling of Shock-Induced Damage for Granite under Dynamic Loading [PDF]

open access: yes, 2006
Johnson-Holmquist constitutive model for brittle materials, coupled with a crack softening model, is used to describe the deviatoric and tensile crack propagation beneath impact crater in granite.
Ahrens, T. J., Ai, H. A.
core   +1 more source

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