Results 311 to 320 of about 1,616,723 (373)

Computational strain gradient crystal plasticity

Journal of the Mechanics and Physics of Solids, 2014
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Niordson, Christian F., Kysar, Jeffrey W.   +1 more
openaire   +2 more sources

Plastic Axial Gradient-Index Material

Fourth Topical Meeting on Gradient-Index Optical Imaging Systems, 1984
It has been reported1) that the axial GRIN lens reduces the third-order aberrations of an optical system in relation to the conventional homogeneous lens. In this paper we have succeeded in fabricating the plastic axial GRIN material by two different methods.
Yasuhiro Koike, Hiroshi Hidaka, Yasuji Ohtsuka   +2 more
openaire   +1 more source

Variational principles for softening gradient dependent plasticity

International Journal of Solids and Structures, 2001
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Wang, Z. M., Peterson, M. L.
openaire   +2 more sources

The tension-compression behavior of gradient structured materials: A deformation-mechanism-based strain gradient plasticity model

, 2021
Jianfeng Zhao, Xiaochong Lu, Jinling Liu, C. Bao, G. Kang, M. Zaiser, Xu Zhang   +6 more
semanticscholar   +1 more source

On energetic and dissipative gradient effects within higher-order strain gradient plasticity: Size effect, passivation effect, and Bauschinger effect

, 2021
Fenfei Hua, Dabiao Liu, Yuan Li, Yuming He, D. Dunstan   +4 more
semanticscholar   +1 more source

Gradient‐dependent plasticity: Formulation and algorithmic aspects

International Journal for Numerical Methods in Engineering, 1992
AbstractA plasticity theory is proposed in which the yield strength not only depends on an equivalent plastic strain measure (hardening parameter), but also on the Laplacian thereof. The consistency condition now results in a differential equation instead of an algebraic equation as in conventional plasticity.
De Borst, René, Mühlhaus, Hans-Bernd
openaire   +1 more source

Formulations of Strain Gradient Plasticity

2011
In the literature, different proposals for a strain gradient plasticity theory exist. So there is still a debate on the formulation of strain gradient plasticity models used for predicting size effects in the plastic deformation of materials. Three such formulations from the literature are discussed in this work.
Forest, Samuel, Bertram, A.
openaire   +2 more sources

Nonlocal and gradient rate plasticity

International Journal of Solids and Structures, 2004
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Finite Gradient Elasticity and Plasticity

2020
Within the range of finite deformations, material laws have to fulfil certain invariance requirements. If we assume invariance under rigid body modifications, it is generally recommended to use material variables because of their invariance property, i.e. those which are defined in the reference placement.
openaire   +1 more source

Geometrically necessary dislocations and related kinematic hardening in gradient grained materials: A nonlocal crystal plasticity study

International journal of plasticity, 2023
Xu Zhang, Jianfeng Zhao, Guozheng Kang, M. Zaiser   +3 more
semanticscholar   +1 more source