A prediction model for hydrogen induced cracking in a prestressed wire with a fracture analysis
- Authors
- Cho, Taejun; Kim, TaeSoo
- Issue Date
- Apr-2008
- Publisher
- Nippon Tekko Kyokai/Iron and Steel Institute of Japan
- Keywords
- Crack propagation; Decoupled analysis; High strength steel; Hydrogen induced cracking; Pre-stressed structures
- Citation
- ISIJ International, v.48, no.4, pp 496 - 505
- Pages
- 10
- Indexed
- SCI
SCOPUS
- Journal Title
- ISIJ International
- Volume
- 48
- Number
- 4
- Start Page
- 496
- End Page
- 505
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/118064
- DOI
- 10.2355/isijinternational.48.496
- ISSN
- 0915-1559
1347-5460
- Abstract
- This paper deals with the Hydrogen Induced Cracking (HIC) behavior of high strength tendon wires of a prestressed structure, exposed to aggressive environments. A decoupling technique has been suggested to evaluate crack propagations in a wire section, driven by the hydrogen diffusion. By the proposed decoupling technique, three dimensional crack propagations can be modeled effectively by two 2-dimensional finite element models, one for the fracture analysis of a round bar wire in a longitudinal section, and the other for a hydrogen diffusion model in a horizontal section. Elastic and bi-linear elastic-plastic finite element analyses have been carried out for the evaluation of crack propagations in wires of tendon. A finite element program is developed for the hydrogen diffusion-stress analyses of wires. The decoupled analysis results have been compared with available test results, and showed improved results than the linearly assumed analytical equations suggested by Forman et al.
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Collections - COLLEGE OF ENGINEERING SCIENCES > MAJOR IN ARCHITECTURAL ENGINEERING > 1. Journal Articles
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