In this work the authors present a micromechanical FE modelling approach to the analysis of a set of ultrafine-grained polycrystalline copper structures. The models take into account both realistic grain distribution and the number of refinement passes of the microstructure. The grain size effect is successfully predicted, with non-uniform deformation and shear localization reproduced during global plastic flow in agreement with experimental observations. The models provide a useful tool with which to interpret damage and fracture mechanisms occurring in ultrafine-grained structures.
A micromechanical model of the evolution of stress & strain fields in ultrafine-grained metal structures under tension / Collini, Luca; A., Bonardi. - In: JOURNAL OF STRAIN ANALYSIS FOR ENGINEERING DESIGN. - ISSN 0309-3247. - 48:2(2013), pp. 91-102. [10.1177/0309324712466550]
A micromechanical model of the evolution of stress & strain fields in ultrafine-grained metal structures under tension.
COLLINI, Luca;
2013-01-01
Abstract
In this work the authors present a micromechanical FE modelling approach to the analysis of a set of ultrafine-grained polycrystalline copper structures. The models take into account both realistic grain distribution and the number of refinement passes of the microstructure. The grain size effect is successfully predicted, with non-uniform deformation and shear localization reproduced during global plastic flow in agreement with experimental observations. The models provide a useful tool with which to interpret damage and fracture mechanisms occurring in ultrafine-grained structures.| File | Dimensione | Formato | |
|---|---|---|---|
|
JSA.2013.48(2).91-102.pdf
non disponibili
Tipologia:
Documento in Post-print
Licenza:
NON PUBBLICO - Accesso privato/ristretto
Dimensione
6.28 MB
Formato
Adobe PDF
|
6.28 MB | Adobe PDF | Visualizza/Apri Richiedi una copia |
I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
