- Volume 34 Issue 6
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Leak-Before-Break Behavior and Crack Opening Displacement in Piping Under Bending Load
굽힘하중을 받는 배관의 파단전누설거동 및 균열개구변위
- Nam, Ki-Woo (Dept. of Materials Science and Engineering, Pukyong Nat'l Univ.)
- 남기우 (부경대학교 신소재공학부)
- Received : 2009.12.21
- Accepted : 2010.03.26
- Published : 2010.06.01
The leak-before-break behavior and the crack opening displacement were investigated of statically indeterminate piping system and statically determinate piping system after a crack penetration. The reduction in the ultimate strength caused by a crack was relatively small in the statically indeterminate piping system. The leak-before-break in the statically indeterminate piping system had a larger safety margin than that in the statically determinate piping system. The crack opening displacement after crack penetration in a pipe with a nonpenetrating crack was evaluated by using a plastic rotation angle.
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