Results 11 to 20 of about 161,376 (364)

Strain gradient plasticity: energetic or dissipative? [PDF]

Acta Mechanica Sinica, 2015
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Fleck, NA, Willis, JR
openaire   +6 more sources

Torsion in Strain-Gradient Plasticity: Energetic Scale Effects [PDF]

SIAM Journal on Applied Mathematics, 2012
We study elasto-plastic torsion in a thin wire within the framework of the strain-gradient plasticity theory elaborated by Gurtin and Anand in 2005. The theory in question envisages two material scales: an energetic length-scale, which takes into account the so-called “geometrically-necessary dislocations” through a dependence of the free energy on the
CHIRICOTTO, MARIA, GIACOMELLI, Lorenzo, Giuseppe Tomassetti   +2 more
openaire   +6 more sources

Strain gradient plasticity : a tensorial gradient approach

, 2009
No abstract.
Leong Hien Poh, Rhj Ron Peerlings, Mgd Marc Geers, S. Swaddiwudhipong   +3 more
openalex   +4 more sources

Mechanism-based strain gradient plasticity— I. Theory

Journal of the Mechanics and Physics of Solids, 1999
Non uniform strain experiments as twisting of thin wires, bending of thin beams, and micro- or nano-indentation show a strong increase in strength with increasing strain gradient. In order to mathematically describe these findings, the authors formulate mechanism-based strain gradient plasticity.
Huajian Gao, Yonggang Huang, W. Nix, J. Hutchinson   +3 more
semanticscholar   +3 more sources

Synergistic deformation mechanisms in Cu–Fe layered materials: A strain gradient plasticity finite element analysis

Journal of Materials Research and Technology
The hetero-zone boundary affected region (HBAR), with a high strain gradient, plays a crucial role in the synergistic deformation of layered materials. Our previous experimental study demonstrated that a decreasing interfacial spacing leads to a higher ...
Hao Ran, Wuli Su, Peihao Ye, Xue Chen, Chao Zhang, Qian Cheng, Qingyuan Wang, Xiaochong Lu, Chongxiang Huang   +8 more
doaj   +2 more sources

An alternative way to describe thermodynamically-consistent higher-order dissipation within strain gradient plasticity

Journal of the mechanics and physics of solids, 2022
Mohamed Jebahi, Samuel Forest
openalex   +3 more sources

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 ...
L. Bardella, C. F. Niordson
semanticscholar   +3 more sources

Scalar-based strain gradient plasticity theory to model size-dependent kinematic hardening effects

Continuum Mechanics and Thermodynamics, 2021
Mohamed Jebahi, Samuel Forest
openalex   +3 more sources

Analysis of the size effect in the nanoscratching process of single crystalline and polycrystalline materials [PDF]

Scientific Reports
In tribology, nanoscratch testing is used to evaluate the mechanical and tribological properties of materials by employing a nanoscale indenter. At this scale, size-dependent plasticity effects, particularly those related to scratch hardness, become ...
Enes Günay, Tuncay Yalçinkaya
doaj   +2 more sources

Analytic prediction of yield stress and strain hardening in a strain gradient plasticity material reinforced by small elastic particles [PDF]

International journal of plasticity, 2021
Philip Croné, Peter Gudmundson, Jonas Faleskog   +2 more
openalex   +3 more sources