Quantification of stress redistribution due to mismatch in creep properties in welded branch pipes
- Authors
- Lee, K. -H.; Kim, Y. -J.; Yoon, K. -B.; Nikbin, K.; Dean, D.
- Issue Date
- Apr-2010
- Publisher
- WILEY
- Keywords
- creep mismatch; finite element analysis; steady-state stresses; welded branch junctions
- Citation
- FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, v.33, no.4, pp 238 - 251
- Pages
- 14
- Journal Title
- FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
- Volume
- 33
- Number
- 4
- Start Page
- 238
- End Page
- 251
- URI
- https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/22545
- DOI
- 10.1111/j.1460-2695.2009.01433.x
- ISSN
- 8756-758X
1460-2695
- Abstract
- This paper reports steady-state stress distributions within the weld metal in a welded branch component, via detailed three-dimensional elastic-creep finite element analyses. The creep exponent and constants for the base and weld metal are systematically varied to simulate under-matching, even-matching and over-matching conditions in creep. Various loading conditions are also considered to see the effect of the loading mode. It is found that the mismatch effect in creep on steady-state stresses within the weld metal can be uniquely quantified by the mismatch factor, defined as a function of creep exponent and constant. Ratios of section-averaged (effective and maximum principal) stresses for the mismatched case to those for the even-matched case are linearly dependent on the mismatch factor.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Mechanical Engineering > 1. Journal Articles
![qrcode](https://api.qrserver.com/v1/create-qr-code/?size=55x55&data=https://scholarworks.bwise.kr/cau/handle/2019.sw.cau/22545)
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.