Effect of thermal ageing of CF8M on multi-axial ductility and application to fracture toughness prediction
- Authors
- Jeon, J. -Y.; Kim, Y. -J.; Kim, J. -W.; Lee, S. -Y.
- Issue Date
- 12월-2015
- Publisher
- WILEY
- Keywords
- cast stainless steel CF8M; finite element damage analysis; J-R curve prediction; multi-axial fracture strain locus
- Citation
- FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, v.38, no.12, pp.1466 - 1477
- Indexed
- SCIE
SCOPUS
- Journal Title
- FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES
- Volume
- 38
- Number
- 12
- Start Page
- 1466
- End Page
- 1477
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/132730
- DOI
- 10.1111/ffe.12316
- ISSN
- 8756-758X
- Abstract
- This paper proposes a method to predict the thermal ageing effect on fracture toughness of CF8M cast stainless steel. The proposed method is based on multi-axial fracture strain combined with finite element damage analysis to simulate ductile tearing. Multi-axial fracture strain loci of un-aged and aged CF8M are determined by analyzing notched bar tensile test. It is shown that the thermal ageing effect on multi-axial fracture strain loci can be characterized by one constant. It is further shown that J-resistance curves of un-aged and aged CF8M can be predicted well from finite element damage analysis using multi-axial fracture strain loci. Implication of present results to practical application of crack assessment of aged cast stainless steels is discussed.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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