Remarks on the energy release rate for an antiplane moving crack in couple stress elasticity

L. Morini*, A. Piccolroaz, G. Mishuris

*Awdur cyfatebol y gwaith hwn

Allbwn ymchwil: Cyfraniad at gyfnodolynErthygladolygiad gan gymheiriaid

120 Wedi eu Llwytho i Lawr (Pure)


This paper is concerned with the steady-state propagation of an antiplane semi-infinite crack in couple stress elastic materials. A distributed loading applied at the crack faces and moving with the same velocity of the crack tip is considered, and the influence of the loading profile variations and microstructural effects on the dynamic energy release rate is investigated. The behavior of both energy release rate and maximum total shear stress when the crack tip speed approaches the critical speed (either that of the shear waves or that of the localized surface waves) is studied. The limit case corresponding to vanishing characteristic scale lengths is addressed both numerically and analytically by means of a comparison with classical elasticity results. (C) 2014 Elsevier Ltd. All rights reserved.

Iaith wreiddiolSaesneg
Tudalennau (o-i)3087-3100
Nifer y tudalennau14
CyfnodolynInternational Journal of Solids and Structures
Rhif cyhoeddi18
Dyddiad ar-lein cynnar15 Mai 2014
Dynodwyr Gwrthrych Digidol (DOIs)
StatwsCyhoeddwyd - Medi 2014

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