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Strain Gradient Plasticity: Theory and Implementation
, 2020 This chapter focuses on the foundation and development of various higher-order strain gradient plasticity theories, and it also provides the basic elements for their finite element implementation. To this aim, we first refer to experiments exhibiting size-effects in metals and explain them by resorting to the concept of geometrically necessary ...
Lorenzo Bardella, Christian F. Niordson
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Scalar-based strain gradient plasticity theory to model size-dependent kinematic hardening effects [PDF]
, 2021 A common belief in phenomenological strain gradient plasticity modeling is that including the gradient of scalar variables in the constitutive setting leads to size-dependent isotropic hardening, whereas the gradient of second-order tensors induces size ...
JEBAHI, Mohamed +3 more
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An alternative way to describe thermodynamically-consistent higher-order dissipation within strain gradient plasticity [PDF]
, 2022 In the context of strain gradient plasticity (SGP), description of higher-order dissipation is the subject of extensive on-going discussions. In most existing SGP theories including thermodynamically-consistent higher-order dissipation, higher-order ...
JEBAHI, Mohamed, FOREST, Samuel
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Interface-Dominated Plasticity and Kink Bands in Metallic Nanolaminates
Crystals, 2023 The theoretical and computational framework of finite deformation mesoscale field dislocation mechanics (MFDM) is used to understand the salient aspects of kink-band formation in Cu-Nb nano-metallic laminates (NMLs).
Abhishek Arora +2 more
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A Review on Strain Gradient Plasticity Approaches in Simulation of Manufacturing Processes
Journal of Manufacturing and Materials Processing, 2020 Predicting the performances of a manufactured part is extremely important, especially for industries in which there is almost no room for uncertainties, such as aeronautical or automotive.
Raffaele Russo +3 more
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Crystals, 2021 It is planned that doped copper overpacks will be utilized in the spent nuclear fuel repositories in Finland and in Sweden. The assessment of long-term integrity of the material is a matter of importance.
Matti Lindroos +3 more
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Journal of the Mechanical Behavior of Materials, 2018 This article investigates the differences between the Aifantis and Gurtin-Anand strain gradient plasticity. The fact that Gurtin-Anand strain gradient plasticity is richer than the Aifantis strain gradient plasticity provides a basis for which we could ...
Borokinni Adebowale S.
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Journal of Materials Research and Technology, 2023 The particle/matrix interface of metal matrix composites (MMCs) can give rise to extra strength and then affect the local deformation behavior. This strengthening effect originates from the plastic strain gradients due to the incompatibility of plastic ...
He Wu +5 more
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A Comparison of Plasticity Regularization Approaches for Geodynamic Modeling
Geochemistry, Geophysics, Geosystems, 2023 The emergence, geometry and activation of faults are intrinsically linked to frictional rheology. The latter is thus a central element in geodynamic simulations which aim at modeling the generation and evolution of fault zones and plate boundaries ...
Thibault Duretz +3 more
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Questioning size effects as predicted by strain gradient plasticity
Journal of the Mechanical Behavior of Materials, 2013 The analytical solution of the elastic-plastic response of a two-phase laminate microstructure subjected to periodic simple shear loading conditions is derived considering strain gradient and micromorphic plasticity models successively. One phase remains
Forest Samuel
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