Fracture simulation model for API X80 Charpy test in Ductile-Brittle transition temperatures

Ji Su Kim; Yun Jae Kim; Myeong Woo Lee; Ki Seok Kim; Kazuki Shibanuma

doi:10.1016/j.ijmecsci.2020.105771

Fracture simulation model for API X80 Charpy test in Ductile-Brittle transition temperatures

Ji Su Kim, Yun Jae Kim, Myeong Woo Lee, Ki Seok Kim, Kazuki Shibanuma

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

14 Citations (Scopus)

Abstract

This paper presents a method to simulate fracture patterns of interacting ductile and cleavage fracture and experimental validation using API X80 Charpy test data. For ductile fracture, the stress modified fracture strain damage model is used, whereas for cleavage fracture, the maximum principal stress criterion is proposed. By combining ductile and cleavage fracture models, a numerical method to simulate interacting ductile and cleavage fracture is proposed. The proposed numerical method is validated by comparing with experimental Charpy test data at ductile-brittle transition temperatures. Comparison of fracture surfaces and impact energies shows good agreements.

Original language	English
Article number	105771
Journal	International Journal of Mechanical Sciences
Volume	182
DOIs	https://doi.org/10.1016/j.ijmecsci.2020.105771
Publication status	Published - 2020 Sept 15

Keywords

API X80 Charpy test
Ductile-brittle transition temperature
Maximum principal stress criterion
Numerical simulation of interacting ductile and cleavage fracture
Stress-modified fracture strain model

ASJC Scopus subject areas

Civil and Structural Engineering
Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijmecsci.2020.105771

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@article{db452dde8ce84f5eb6f7ab041c719267,

title = "Fracture simulation model for API X80 Charpy test in Ductile-Brittle transition temperatures",

abstract = "This paper presents a method to simulate fracture patterns of interacting ductile and cleavage fracture and experimental validation using API X80 Charpy test data. For ductile fracture, the stress modified fracture strain damage model is used, whereas for cleavage fracture, the maximum principal stress criterion is proposed. By combining ductile and cleavage fracture models, a numerical method to simulate interacting ductile and cleavage fracture is proposed. The proposed numerical method is validated by comparing with experimental Charpy test data at ductile-brittle transition temperatures. Comparison of fracture surfaces and impact energies shows good agreements.",

keywords = "API X80 Charpy test, Ductile-brittle transition temperature, Maximum principal stress criterion, Numerical simulation of interacting ductile and cleavage fracture, Stress-modified fracture strain model",

author = "Kim, {Ji Su} and Kim, {Yun Jae} and Lee, {Myeong Woo} and Kim, {Ki Seok} and Kazuki Shibanuma",

note = "Funding Information: This work was supported by POSCO [2017R240], and Korea Agency for Infrastructure Technology Advancement [17IFIP-B067108-05]. Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

year = "2020",

month = sep,

day = "15",

doi = "10.1016/j.ijmecsci.2020.105771",

language = "English",

volume = "182",

journal = "International Journal of Mechanical Sciences",

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AU - Kim, Ji Su

AU - Kim, Yun Jae

AU - Lee, Myeong Woo

AU - Kim, Ki Seok

AU - Shibanuma, Kazuki

PY - 2020/9/15

Y1 - 2020/9/15

N2 - This paper presents a method to simulate fracture patterns of interacting ductile and cleavage fracture and experimental validation using API X80 Charpy test data. For ductile fracture, the stress modified fracture strain damage model is used, whereas for cleavage fracture, the maximum principal stress criterion is proposed. By combining ductile and cleavage fracture models, a numerical method to simulate interacting ductile and cleavage fracture is proposed. The proposed numerical method is validated by comparing with experimental Charpy test data at ductile-brittle transition temperatures. Comparison of fracture surfaces and impact energies shows good agreements.

AB - This paper presents a method to simulate fracture patterns of interacting ductile and cleavage fracture and experimental validation using API X80 Charpy test data. For ductile fracture, the stress modified fracture strain damage model is used, whereas for cleavage fracture, the maximum principal stress criterion is proposed. By combining ductile and cleavage fracture models, a numerical method to simulate interacting ductile and cleavage fracture is proposed. The proposed numerical method is validated by comparing with experimental Charpy test data at ductile-brittle transition temperatures. Comparison of fracture surfaces and impact energies shows good agreements.

KW - API X80 Charpy test

KW - Ductile-brittle transition temperature

KW - Maximum principal stress criterion

KW - Numerical simulation of interacting ductile and cleavage fracture

KW - Stress-modified fracture strain model

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M3 - Article

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SN - 0020-7403

VL - 182

JO - International Journal of Mechanical Sciences

JF - International Journal of Mechanical Sciences

M1 - 105771

ER -

Fracture simulation model for API X80 Charpy test in Ductile-Brittle transition temperatures

Abstract

Keywords

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