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논문 리스트

2023
초고강도 1470 MPa급 판재의 파단 이방성 실험 결과에 관한 연구
한국소성?가공학회
김대용
논문정보
Publisher
소성?가공
Issue Date
2023-04-30
Keywords
-
Citation
-
Source
-
Journal Title
-
Volume
32
Number
2
Start Page
87
End Page
91
DOI
10.5228/KSTP.2023.32.2.87
ISSN
1225696X
Abstract
In the present work, the ductile fracture behaviors of ultra-high strength steel sheets along the different loading directions are investigated under various loading paths. Three loading paths, i.e., in-plane shear, uniaxial tension, plane strain tension deformations, are considered, and the corresponding specimens are described. The experiments are conducted using the digital image correlation (DIC) system to analyze the strain at the onset of the fracture. The experimental results show that the loading path for each specimen sample is linear, and different values of the fracture strains for the loading direction from the plane strain tension are observed. The ductile fracture model of the modified Mohr-Coulomb (MMC) is constructed based on the experimental data and evaluated along the rolling direction and transverse direction under various loading paths.

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이름 소속
김대용 미래모빌리티학과