Fatigue growth simulation of part-through flaws in thick-walled pipes under rotary bending

Authors
Carpinteri, A Brighenti, R Spagnoli, A
Citation
A. Carpinteri et al., Fatigue growth simulation of part-through flaws in thick-walled pipes under rotary bending, INT J FATIG, 22(1), 2000, pp. 1-9
Citations number
20
Categorie Soggetti
Material Science & Engineering
Journal title
INTERNATIONAL JOURNAL OF FATIGUE
ISSN journal
01421123 → ACNP
Volume
22
Issue
1
Year of publication
2000
Pages
1 - 9
Database
ISI
SICI code
0142-1123(200001)22:1<1:FGSOPF>2.0.ZU;2-D
Abstract
The fatigue growth of a circumferential external surface flaw in a thick-wa lled round pipe subjected to rotary bending is simulated numerically. A thr ee-dimensional finite element analysis is carried out to obtain the stress- strain field of the cracked structural component for any position of the fl aw. The crack front is assumed to have an elliptical-are shape during the w hole propagation, as has been deduced from several experimental investigati ons. The results for rotary bending are compared to those for cyclic bendin g. (C) 1999 Elsevier Science Ltd. All rights reserved.