Dynamic analysis of crack growth and arrest in a pressure vessel subjected to thermal and pressure loading

✍ Scribed by Björn Brickstad; Fred Nilsson

• Publisher: Elsevier Science
• Year: 1986
• Tongue: English
• Weight: 749 KB
• Volume: 23
• Category: Article
• ISSN: 0013-7944
• DOI: 10.1016/0013-7944(86)90176-1

✦ Synopsis

Predictions of crack arrest behaviour are performed for a cracked reactor pressure vessel under both thermal and pressure loading. The object is to compare static and dynamic calculations. The dynamic calculations are made using an explicit finite-element technique where crack growth is simulated by gradual nodal release. Three different load cases and the effect of different velocity dependence on the crack-propagation toughness are studied. It is found that for the analysed cases the static analysis is slightly conservative, thus justifying its use for these problems.