Results 21 to 30 of about 738 (114)
A viscoplastic SANICLAY model for natural soft soils [PDF]
, 2015 This paper focuses on constitutive and numerical modeling of strain-rate dependency in natural clays while also accounting for anisotropy and destructuration. For this purpose the SANICLAY model that accounts for the fabric anisotropy with the additional
Poletti, Elisa +2 more
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Variational eigenerosion for rate‐dependent plasticity in concrete modeling at small strain
International Journal for Numerical Methods in Engineering, Volume 121, Issue 7, Page 1388-1409, 15 April 2020., 2020 Summary In the context of eigenfracture scheme, the work at hand introduces a variational eigenerosion approach for inelastic materials. The theory seizes situations where the material accumulates large amounts of plastic deformations. For these cases, the surface energy entering the energy balance equation is rescaled to favor fracture, thus energy ...
Aurel Qinami +2 more
wiley +1 more source
Viscoplastic constitutive models for zero-thickness interface elements, formulation and applications [PDF]
, 2019 An energy-based work-softening visco-plastic model for zero-thickness interface elements has been developed as an extension of an existing elastic-perfectly-viscoplastic formulation.
Carol, Ignacio, Jaqués Adell, Irene
core +3 more sources
Applied SciencesThe contribution presents the verification of the methodology of accelerated creep tests from the point of view of obtaining more information about the stress–strain behaviour of the investigated materials using the Digital Image Correlation method ...
Zbynek Paska +4 more
doaj +1 more source
The Viscoplastic Effect in the Heat–Treated, Thin–Walled AL–6060 Alloy Profiles Subjected to Compressive Axial Impact. [PDF]
, 2014 This paper will highlight the influence of the strain rate effect occurring during pulse loading on dynamic stability of aluminium profiles. Current work is the development of the analysis carried in [1].
Mróz, Andrzej
core
International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.ABSTRACT Saturated high plasticity clays show complex nonlinear, rate‐dependent, and hysteresis behaviors under non‐monotonic stress paths, requiring advanced mathematical constitutive equations for accurate description. Taking into account the inherent advantages of kinematic hardening mechanisms in simulating complex stress histories, this paper ...
Wei Cheng, Zhen‐Yu Yin
wiley +1 more source
Viscoplastic Modeling the Evolving Mechanical Properties of Shotcrete 3D Printing Material
Proceedings in Applied Mathematics and Mechanics, Volume 26, Issue 2, June 2026.ABSTRACT In recent years, additive manufacturing in construction (AMC) has gradually influenced the building industry by offering a faster and more efficient way to build with concrete. Unlike traditional methods that rely on molds, AMC deposits material layer by layer through an automated process, enabling new possibilities for custom designs and ...
Quoc Tuan La +3 more
wiley +1 more source
A Thermodynamic Framework for Turing‐Type Instabilities in Porous Media: Part I Theory
Geochemistry, Geophysics, Geosystems, Volume 27, Issue 3, March 2026.Abstract Pattern formation in geological materials is commonly described using analogies to Turing‐type reaction–diffusion systems, yet a unifying thermodynamic explanation remains elusive. Here we develop a multiscale, thermodynamically consistent framework for pattern‐forming instabilities in porous media undergoing coupled thermo–hydro–mechanical ...
Klaus Regenauer‐Lieb +5 more
wiley +1 more source
Anisotropic creep model for soft soils [PDF]
, 2008 In this paper a new anisotropic model for time-dependent behaviour of soft soils is presented. The formulation is based on a previously developed isotropic creep model, assuming rotated Modified Cam Clay ellipses as contours of volumetric creep strain ...
Academy of Finland Grant 210744 (Funder) +6 more
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A Reaction‐Cross‐Diffusion Formulation for the Evolution of Compaction Bands
Journal of Geophysical Research: Solid Earth, Volume 130, Issue 3, March 2025.Abstract We present a new thermodynamically consistent model for the time‐dependent evolution of compaction bands in porous rocks. The model extends a closed‐form analytical solution of compaction band formation for porous media into the time domain.
Qingpei Sun +2 more
wiley +1 more source