Dislocations and inclusions in prestressed metals

Luca Argani, Davide Bigoni*, Gennady Mishuris

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

8 Dyfyniadau(SciVal)
111 Wedi eu Llwytho i Lawr (Pure)

Crynodeb

The effect of prestress on dislocation (and inclusion) fields in nonlinear elastic solids is analysed by extending previous solutions by Eshelby and Willis. Using a plane-strain constitutive model (for incompressible incremental nonlinear elasticity) to describe the behaviour of ductile metals (J(2)-deformation theory of plasticity), we show that when the level of prestress is high enough that shear band formation is approached, strongly localized strain patterns emerge, when a dislocation dipole is emitted by a source. These may explain cascade activation of dislocation clustering along slip band directions.

Iaith wreiddiolSaesneg
Rhif yr erthygl20120752
Nifer y tudalennau17
CyfnodolynProceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences
Cyfrol469
Rhif cyhoeddi2154
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - 08 Meh 2013

Ôl bys

Gweld gwybodaeth am bynciau ymchwil 'Dislocations and inclusions in prestressed metals'. Gyda’i gilydd, maen nhw’n ffurfio ôl bys unigryw.

Dyfynnu hyn