Results 1 to 10 of about 15,118 (167)
Relaxation of the single-slip condition in strain-gradient plasticity. [PDF]
Proc Math Phys Eng Sci, 2014 We consider the variational formulation of both geometrically linear and geometrically nonlinear elasto-plasticity subject to a class of hard single-slip conditions. Such side conditions typically render the associated boundary-value problems non-convex.
Anguige K, Dondl PW.
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Contact of Rough Surfaces: An Incremental Model Accounting for Strain Gradient Plasticity
Lubricants, 2023 In the contact of rough surfaces, most contact patches are at the scale of micrometers, and thus, their contact deformation can be dominated by the size-dependent plasticity. In this paper, we propose a new strategy to analyze the role of strain gradient
Chunyun Jiang +3 more
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An effect of a purely dissipative process of microstresses on plane strain gradient plasticity problems [PDF]
Theoretical and Applied Mechanics, 2018 This article considers a plane strain gradient plasticity theory of the Gurtin–Anand model [M. Gurtin, L. Anand, A theory of strain gradient plasticity for isotropic, plastically irrotational materials Part I: Small deformations, J. Mech. Phys. Solids 53
Borokinni Adebowale +2 more
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Crystals, 2021 The present paper aims at providing a comprehensive investigation of the abilities and limitations of strain gradient crystal plasticity (SGCP) theories in capturing different kinds of localization modes in single crystals.
Lei Cai +2 more
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On fracture in finite strain gradient plasticity [PDF]
International Journal of Plasticity, 2016 In this work a general framework for damage and fracture assessment including the effect of strain gradients is provided. Both mechanism-based and phenomenological strain gradient plasticity (SGP) theories are implemented numerically using finite deformation theory and crack tip fields are investigated.
E. Martínez-Pañeda, C.F. Niordson
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A reformulation of strain gradient plasticity [PDF]
Journal of the Mechanics and Physics of Solids, 2001 A class of phenomenological strain gradient plasticity theories is formulated to accommodate more than one material length parameter. The objective is a generalization of the classical J2 3ow theory of plasticity to account for strain gradient e4ects that emerge in deformation phenomena at the micron scale.
John W. Hutchinson, Norman A. Fleck
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Applied Sciences, 2021 The objective of this work is to present analytical solutions for several 2D model problems to demonstrate the unique plastic fields generated by the implementation of micromorphic approach for gradient plasticity.
Ozgur Aslan, Emin Bayraktar
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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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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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Strain gradient plasticity: energetic or dissipative? [PDF]
Acta Mechanica Sinica, 2015 For an infinite slab of strain gradient sensitive material subjected to plane-strain tensile loading, computation established and analysis confirmed that passivation of the lateral boundaries at some stage of loading inhibits plastic deformation upon further loading. This result is not surprising in itself except that, remarkably, if the gradient terms
Fleck, NA, Willis, JR
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