A non-local plasticity model for porous metals with deformation-induced anisotropy: Mathematical and computational issues

2021 ◽  
Vol 146 ◽  
pp. 104190
Author(s):  
Nikolaos Aravas ◽  
Ioanna Papadioti
Keyword(s):  
Plasticity Model ◽  
Induced Anisotropy ◽  
Porous Metals ◽  
Local Plasticity ◽  
Non Local

scholarly journals A non-local plasticity model of stimulated volume evolution during hydraulic fracturing

2019 ◽  
Vol 159 ◽  
pp. 111-125 ◽  
Author(s):  
Erfan Sarvaramini ◽  
Maurice B. Dusseault ◽  
Mohammad Komijani ◽  
Robert Gracie
Keyword(s):  
Hydraulic Fracturing ◽  
Plasticity Model ◽  
Local Plasticity ◽  
Non Local

scholarly journals Non-local plasticity effects on notch fracture mechanics

2017 ◽  
Vol 92 ◽  
pp. 276-287 ◽  
Author(s):  
Emilio Martínez-Pañeda ◽  
Susana del Busto ◽  
Covadonga Betegón
Keyword(s):  
Fracture Mechanics ◽  
Local Plasticity ◽  
Non Local

scholarly journals Energy-based non-local plasticity models for deformation patterning, localization and fracture

2015 ◽  
Vol 471 (2180) ◽  
pp. 20150275 ◽  
Author(s):  
Giovanni Lancioni ◽  
Tuncay Yalçinkaya ◽  
Alan Cocks
Keyword(s):  
Numerical Solutions ◽  
Deformation Field ◽  
Energy Potential ◽  
Heterogeneous Distribution ◽  
One Dimensional ◽  
Plastic Energy ◽  
Local Plasticity ◽  
Rate Dependent ◽  
Shear Problem ◽  
Non Local

This paper analyses the effect of the form of the plastic energy potential on the (heterogeneous) distribution of the deformation field in a simple setting where the key physical aspects of the phenomenon could easily be extracted. This phenomenon is addressed through two different (rate-dependent and rate-independent) non-local plasticity models, by numerically solving two distinct one-dimensional problems, where the plastic energy potential has different non-convex contributions leading to patterning of the deformation field in a shear problem, and localization, resulting ultimately in fracture, in a tensile problem. Analytical and numerical solutions provided by the two models are analysed, and they are compared with experimental observations for certain cases.

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