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Gradient-Enhanced Damage-Plastic Models
In this paper, constitutive model combining plasticity with damage is considered and the model is regularized by the implicit gradient approach....
JN - Stavebnictví
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
On Physical Meaning of Strain Gradients in Plasticity
Attempts to introduce formally strain gradients into plasticity have failed uncertain. For the case of shear bands it is shown that an advanced non-local plasticity for additional degrees of freedom (strain gradients
JL - Únava materiálu a lomová mechanika
- 2001 •
- D
Rok uplatnění
D - Stať ve sborníku
A New Trend in Plasticity: Strain Gradient Theories
The recent renewed interest in the strain gradient plasticity has been motivated mainly by the experimental evidence that plastic flow processes in crystalline to introduce formally strain gradients into plasti...
BM - Fyzika pevných látek a magnetismus
- 2001 •
- D
Rok uplatnění
D - Stať ve sborníku
Energetic approach to large strain gradient crystal plasticity
We formulate a problem of the evolution of elasto-plastic materials subjected to external loads in the framework of large deformations and multiplicative plasticity. We focus on a spontaneous inhomogenization interpreted as a struct...
BA - Obecná matematika
- 2012 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Energetic approach to gradient plasticity
We formulate a problem of the evolution of elasto-plastic materials subjected to external loads in the framework of large deformations and multiplicative plasticity. Our model includes gradients of the plastic stra...
BA - Obecná matematika
- 2010 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
On Strain Gradients in Plasticity
The classical theory of plasticity predicts no size effects and fails to describe localization of plastic strain in a realistic way. A standard way of extending plasticity to get rid of the unwanted features is to enrich th...
JL - Únava materiálu a lomová mechanika
- 2001 •
- D
Rok uplatnění
D - Stať ve sborníku
Localization Properties of Strain-Softening Gradient Plasticity Models. Part II: Theories with Gradients of Internal Variables
This paper compares and evaluates enhancements of the conventional plasticity theory by gradients of internal variables. Attention is focused on their performance as localization limiters. Both explicit and implicit gradient
JJ - Ostatní materiály
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Localization Analysis of Variationally Based Gradient Plasticity Model
and evolution of localized plastic zone in a uniaxially loaded bar with variable cross-sectional area. A variationally based formulation of explicit gradient plasticity the load level, size of the plastic zone, di...
JN - Stavebnictví
- 2013 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Bounds on the elastic threshold for problems of dissipative strain-gradient plasticity
-established model of rate-independent strain-gradient plasticity. In the conventional theory of plasticity the approach to determining plastic flow is local, and based on the stress distribution in the body. For t...
Applied mathematics
- 2020 •
- Jimp •
- Link
Rok uplatnění
Jimp - Článek v periodiku v databázi Web of Science
Výsledek na webu
Localization Properties of Strain-Softening Gradient Plasticity Models. Part I: Strain-Gradient Theories
This paper compares and evaluates strain-gradient extensions of the conventional plasticity theory. Attention is focused on the ability of individual problem in the presence of softening and to prevent localization of plastic
JJ - Ostatní materiály
- 2009 •
- Jx
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
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