Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels
A comparison is made of the ductility limits of one mild (normal) and two high-tensile strength shipbuilding steels with an emphasis on stress state and loading path dependency. To describe the ductile fracture behavior of the considered steels accurately, an alternative form of ductile fracture pre...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7034 |
| _version_ | 1797551432605368320 |
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| author | Burak Can Cerik Joonmo Choung |
| author_facet | Burak Can Cerik Joonmo Choung |
| author_sort | Burak Can Cerik |
| collection | DOAJ |
| description | A comparison is made of the ductility limits of one mild (normal) and two high-tensile strength shipbuilding steels with an emphasis on stress state and loading path dependency. To describe the ductile fracture behavior of the considered steels accurately, an alternative form of ductile fracture prediction model is presented and calibrated. The present fracture model combines the normalized Cockcroft–Latham and maximum shear stress criterion, and is dependent on both stress triaxiality and Lode angle parameter. The calibrations indicate that, depending on the hardening characteristics of the steels, ductile fracture behavior differs considerably with stress state. It is demonstrated that the adopted fracture model is able to predict the ductile fracture initiation in various test specimens with good accuracy and is flexible in addressing the observed differences in the ductile fracture behavior of the considered steel grades. |
| first_indexed | 2024-03-10T15:44:38Z |
| format | Article |
| id | doaj.art-af7cb6cf84f546bd9c092ea00c05e530 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:44:38Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-af7cb6cf84f546bd9c092ea00c05e5302023-11-20T16:33:47ZengMDPI AGApplied Sciences2076-34172020-10-011020703410.3390/app10207034Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding SteelsBurak Can Cerik0Joonmo Choung1Department of Naval Architecture and Ocean Engineering, Inha University, Incheon 22212, KoreaDepartment of Naval Architecture and Ocean Engineering, Inha University, Incheon 22212, KoreaA comparison is made of the ductility limits of one mild (normal) and two high-tensile strength shipbuilding steels with an emphasis on stress state and loading path dependency. To describe the ductile fracture behavior of the considered steels accurately, an alternative form of ductile fracture prediction model is presented and calibrated. The present fracture model combines the normalized Cockcroft–Latham and maximum shear stress criterion, and is dependent on both stress triaxiality and Lode angle parameter. The calibrations indicate that, depending on the hardening characteristics of the steels, ductile fracture behavior differs considerably with stress state. It is demonstrated that the adopted fracture model is able to predict the ductile fracture initiation in various test specimens with good accuracy and is flexible in addressing the observed differences in the ductile fracture behavior of the considered steel grades.https://www.mdpi.com/2076-3417/10/20/7034ductile fractureshear fractureshipbuilding steelfracture predictionstress triaxialityLode angle parameter |
| spellingShingle | Burak Can Cerik Joonmo Choung Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels Applied Sciences ductile fracture shear fracture shipbuilding steel fracture prediction stress triaxiality Lode angle parameter |
| title | Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels |
| title_full | Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels |
| title_fullStr | Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels |
| title_full_unstemmed | Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels |
| title_short | Ductile Fracture Behavior of Mild and High-Tensile Strength Shipbuilding Steels |
| title_sort | ductile fracture behavior of mild and high tensile strength shipbuilding steels |
| topic | ductile fracture shear fracture shipbuilding steel fracture prediction stress triaxiality Lode angle parameter |
| url | https://www.mdpi.com/2076-3417/10/20/7034 |
| work_keys_str_mv | AT burakcancerik ductilefracturebehaviorofmildandhightensilestrengthshipbuildingsteels AT joonmochoung ductilefracturebehaviorofmildandhightensilestrengthshipbuildingsteels |