Premium
Characterization of the Behaviour of Part‐Through Cracks under stable crack extension
Author(s) -
Grüter L.,
Setz W.,
Meyer P.
Publication year - 1983
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.19830140209
Subject(s) - ellipse , crack closure , materials science , plasticity , crack growth resistance curve , crack tip opening displacement , mechanics , composite material , fracture mechanics , structural engineering , fissure , geometry , forensic engineering , mathematics , engineering , physics
The behaviour of part‐through cracks, modelled by semi‐elliptical surface cracks, under variable normal stresses (linearized) is investigated. The stable crack contour, given as crack aspect ratio, is determined for an infinite body as a circle; in a finite body semi‐ellipses are “quasi”‐ stable. The effects of crack growth law types, crack location, geometry and stress redistribution together with plasticity effects are discussed. The final relative crack lengths for wall penetration are determined. The data are discussed with respect to the conditions for leak‐before‐break, sudden rupture and no‐leak‐before‐break/no‐sudden‐rupture.