Quantification of notch type and specimen thickness effects on ductile and brittle fracture behaviour of drop weight tear test
- Authors
- Kim, Ji-Su; Jang, Je-Hoon; Kim, Yun-Jae; Kim, Ki-Seok
- Issue Date
- 3월-2022
- Publisher
- ELSEVIER
- Keywords
- Drop-weight tear test; Notch type and specimen thickness effect; Chevron notch; Press notch; Ductile-brittle fracture simulation model
- Citation
- EUROPEAN JOURNAL OF MECHANICS A-SOLIDS, v.92
- Indexed
- SCIE
SCOPUS
- Journal Title
- EUROPEAN JOURNAL OF MECHANICS A-SOLIDS
- Volume
- 92
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/135209
- DOI
- 10.1016/j.euromechsol.2021.104466
- ISSN
- 0997-7538
- Abstract
- In this paper, effects of the notch type and specimen thickness on fracture behaviour of DWTT for API X80 at transition temperatures are quantified via FE analysis. Two notch types (press and chevron notch) and two specimen thicknesses (19 mm and 25 mm) are considered for the DWTT specimen. Fracture behaviours of the DWTTs are investigated using a ductile-brittle fracture simulation model. The ductile-brittle fracture simulation model is validated by comparing simulation results with experimental data. From the simulation results, it is found that the effect of the notch type and specimen thickness on fracture behaviour of DWTT can be well reproduced. Finally, the experimental findings are quantitatively supported by using the ductile-brittle fracture simulation method.
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Collections - College of Engineering > Department of Mechanical Engineering > 1. Journal Articles
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