Predicting Ductile Fracture in Maritime Crash with a Modified Implementation of BWH Criterion

Cerik, Burak Can; Park, Sung-Ju; Choung, Joonmo

doi:10.1007/978-981-15-4672-3_43

Cited by 3 publications

(1 citation statement)

References 20 publications

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“…The Bressan-Williams-Hill (BWH) criterion was developed based on Hill's localized necking criterion to introduce a stress-based Forming Limit Curve (FLC) that could be used to predict fracture initiation with shell elements [15]. Subsequently, an extended strain-based version of the BWH model was derived [16,17]. Cerick et al Lou and Huh [18][19][20] introduced a Lou-Huh ductile fracture model for predicting sheet metals, a model subsequently validated by numerous researchers [21][22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on a Ductile Fracture Model in Pre-Cracked Tension Tests of SUS304L

Park,

Lee,

Nam

et al. 2024

Materials

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The effectiveness of a ductile fracture model in accurately predicting fracture initiation has been demonstrated. In this study, we concentrate on applying the ductile fracture model to pre-cracked structures constructed from SUS304L stainless steel with experimental and numerical analyses. The Swift hardening law was employed to extend the plastic behavior beyond the onset of necking. Additionally, the Hosford–Coulomb model, integrated with a damaged framework, was utilized to predict ductile fracture behavior, particularly under non-proportional loading conditions. Tension tests were conducted on various specimens designed to illustrate various fracture modes resulting from geometric effects. Numerical analyses were conducted to explore the loading histories, utilizing an optimization process to calibrate fracture model parameters. The proposed fracture model is validated against pre-cracked structures detailed in a reference paper. The results convincingly demonstrate that the fracture model effectively predicts both fracture initiation and propagation in pre-cracked structures.

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Section: Introductionmentioning

confidence: 99%

Numerical Study on a Ductile Fracture Model in Pre-Cracked Tension Tests of SUS304L

Park,

Lee,

Nam

et al. 2024

Materials

Self Cite

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Assessment of Strain Rate Effects on Fracture Prediction of Ship Structures Under Collision Events

Lu,

Liu,

wang

et al. 2024

Preprint

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Evaluation of Localized Necking Models for Fracture Prediction in Punch-Loaded Steel Panels

Cerik

Lee

Choung

2021

JMSE

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This study compared the experimental test results on punch-loaded unstiffened and stiffened panels with numerical predictions using different localized necking modeling approaches with shell elements. The analytical models that were derived by Bressan–Williams–Hill (BWH) were used in their original form and extended version, which considers non-proportional loading paths while using the forming-severity concept and bending-induced suppression of through-thickness necking. The results suggest that the mesh size sensitivity depends on the punch geometry. Moreover, the inclusion of bending effects and the use of the forming-severity concept in the BWH criterion yielded improved estimations of fracture initiation with shell elements.

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Predicting Ductile Fracture in Maritime Crash with a Modified Implementation of BWH Criterion

Cited by 3 publications

References 20 publications

Numerical Study on a Ductile Fracture Model in Pre-Cracked Tension Tests of SUS304L

Numerical Study on a Ductile Fracture Model in Pre-Cracked Tension Tests of SUS304L

Assessment of Strain Rate Effects on Fracture Prediction of Ship Structures Under Collision Events

Evaluation of Localized Necking Models for Fracture Prediction in Punch-Loaded Steel Panels

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