A PROPOSED METHOD FOR THE APPLICABILITY OF LOAD SEPARATION CONDITION IN PRECRACKED SPECIMENS

Citation
An. Cassanelli et La. Devedia, A PROPOSED METHOD FOR THE APPLICABILITY OF LOAD SEPARATION CONDITION IN PRECRACKED SPECIMENS, International journal of fracture, 83(2), 1997, pp. 167-173
Citations number
15
Categorie Soggetti
Mechanics
ISSN journal
03769429
Volume
83
Issue
2
Year of publication
1997
Pages
167 - 173
Database
ISI
SICI code
0376-9429(1997)83:2<167:APMFTA>2.0.ZU;2-V
Abstract
In the present work a method to establish the effective applicability range of load separation condition in precracked specimens which under go crack growth during testing is proposed. This methodology is based on theoretical and experimental considerations which lead to the appli cation of a modified power law to represent load separation properties in materials that exhibit a Ramberg-Osgood type law deformation behav iour. The proper definition of the applicability range of the method a llows J-R curve determination based in a single load - load point disp lacement record.