Investigation of Residual Stress Distributions of Induction Heating Bended Austenitic Stainless Steel (316 Series) Piping
- 1. Sunchon National University, Suncheon (Korea, Republic of)
- 2. KEPCO E and C Co., Yongin (Korea, Republic of)
Description
The induction heating bending process, which has been recently applied to nuclear piping, can generate residual stresses due to thermomechanical mechanism during the process. This residual stress is one of the crack driving forces that have important effects on crack initiation and propagation. However, previous studies have focused only on geometric shape variations such as the change in thickness and ovality. Moreover, very few studies are available on the effects of process variables on residual stresses. This study investigated the effects of process variables on the residual stress distributions of induction heating bended austenitic stainless steel (316 series) piping using parametric finite element analysis. The results indicated that the heat generation rate and feed velocity have significant effects on the residual stresses whereas the moment and bending angle have insignificant effects
Additional details
Publishing Information
- Journal Title
- Transactions of the Korean Society of Mechanical Engineers. A
- Journal Volume
- 38
- Journal Issue
- 7
- Series
- 16 refs, 14 figs
- Journal Page Range
- p. 809-815
- ISSN
- 1226-4873
INIS
- Country of Publication
- Korea, Republic of
- Country of Input or Organization
- Korea, Republic of
- INIS RN
- 46117580
- Subject category
- S42: ENGINEERING;
- Descriptors DEI
- AUSTENITIC STEELS; BENDING; GEOMETRY; HEATING; PIPES; RESIDUAL STRESSES
- Descriptors DEC
- ALLOYS; CARBON ADDITIONS; DEFORMATION; IRON ALLOYS; IRON BASE ALLOYS; MATHEMATICS; STEELS; STRESSES; TRANSITION ELEMENT ALLOYS; TUBES