A Hosford-Coulomb type ductile fracture surface was developed for DH36 grade steels. The fracture experiments reported in the literature, which consist of tests with notched tensile specimens, tensile specimens with a central hole, shear specimen and disc specimens for punch specimens, were utilized in a detailed finite element analysis of each experiment to evaluate the evolution of local stress and strain fields and identify plasticity and fracture response of DH36. The developed plasticity model consists of a von Mises yield surface, an associated flow rule and a combined Swift-Voce type isotropic hardening rule. The loading paths to fracture initiation were determined in terms of stress triaxiality and normalized Lode angle parameter histories. Finally, the Hosford-Coulomb fracture surface was calibrated using the finite element analysis results and adapting a linear damage accumulation law.
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ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering
June 17–22, 2018
Madrid, Spain
Conference Sponsors:
- Ocean, Offshore and Arctic Engineering Division
ISBN:
978-0-7918-5132-6
PROCEEDINGS PAPER
Ductile Fracture Modeling of DH36 Grade Steels Available to Purchase
Burak Can Cerik,
Burak Can Cerik
Inha University, Incheon, South Korea
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Sung-Ju Park,
Sung-Ju Park
Inha University, Incheon, South Korea
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Joonmo Choung
Joonmo Choung
Inha University, Incheon, South Korea
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Burak Can Cerik
Inha University, Incheon, South Korea
Sung-Ju Park
Inha University, Incheon, South Korea
Joonmo Choung
Inha University, Incheon, South Korea
Paper No:
OMAE2018-78681, V11AT12A008; 10 pages
Published Online:
September 25, 2018
Citation
Cerik, BC, Park, S, & Choung, J. "Ductile Fracture Modeling of DH36 Grade Steels." Proceedings of the ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. Volume 11A: Honoring Symposium for Professor Carlos Guedes Soares on Marine Technology and Ocean Engineering. Madrid, Spain. June 17–22, 2018. V11AT12A008. ASME. https://doi.org/10.1115/OMAE2018-78681
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