eprintid: 3217
rev_number: 7
eprint_status: archive
userid: 69
dir: disk0/00/00/32/17
datestamp: 2016-03-11 12:26:37
lastmod: 2016-04-06 09:07:16
status_changed: 2016-03-11 12:26:37
type: article
succeeds: 3216
metadata_visibility: show
creators_name: Morini, Lorenzo
creators_name: Piccolroaz, Amdrea
creators_name: Mishuris, Gennady
creators_id: lorenzo.morini@imtlucca.it
creators_id: 
creators_id: 
title: Remarks on the energy release rate for an antiplane moving crack in couple stress elasticity
ispublished: pub
subjects: T1
subjects: TA
divisions: CSA
full_text_status: public
monograph_type: working_paper
keywords: Couple stress elasticity; Energy release rate; Couple stress surface waves; Shielding effects; Weakening effects
abstract: 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.
date: 2014
date_type: published
publication: International Journal of Solids and Structures
volume: 51
number: 18
publisher: Elsevier
pagerange: 3087-3100
id_number: 10.1016/j.ijsolstr.2014.05.005
institution: IMT Institute for Advanced Studies Lucca
refereed: TRUE
issn: 0020-7683
official_url: http://www.sciencedirect.com/science/article/pii/S0020768314001917
citation:   Morini, Lorenzo and Piccolroaz, Amdrea and Mishuris, Gennady  Remarks on the energy release rate for an antiplane moving crack in couple stress elasticity.  International Journal of Solids and Structures, 51 (18).  pp. 3087-3100.  ISSN 0020-7683      (2014)  
document_url: http://eprints.imtlucca.it/3217/1/1311.5329v2.pdf