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Modeling of Crack Propagation in Defective X100 Line Pipes

  • A comprehensive experimental program is carried out to determine material parameters for fracture initiation and propagation in X100 pipeline steels. The quadratic Hill’48 yield function along with an isotropic hardening are used to describe plastic flow at large deformation and a phenomenological fracture criterion to predict fracture initiation. Fracture mechanics SENT specimens are used to calibrate post-initiation softening parameters necessary for ductile crack propagation in thick components. Once the material model parameters set is complete a final comparison is conducted with ring expansion test on same material.

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Metadaten
Author:Lufeng Xue, Marcelo Paredes, Aida NonnORCiDGND, Tomasz Wierzbicki
DOI:https://doi.org/10.1115/OMAE2020-18048
ISBN:978-0-7918-8434-8
Parent Title (English):ASME 2020 39th International Conference on Ocean, Offshore and Arctic Engineering: August 3-7, 2020, virtual, online
Publisher:American Society of Mechanical Engineers
Place of publication:New York
Document Type:conference proceeding (article)
Language:English
Year of first Publication:2020
Release Date:2022/07/10
Tag:Berg; Bruchmechanik; Pipeline; Rissausbreitung; Versuchsprogramm; Werkstoffmodell; Werkstoffparameter; plastisches Fließen
Article Number:OMAE2020-18048, V003T03A020
Pagenumber:8
Institutes:Fakultät Maschinenbau
Technologie-Campus Neustadt an der Donau
Fakultät Maschinenbau / Computational Mechanics and Materials Lab (CMM)
research focus:Produktion und Systeme
Licence (German):Keine Lizenz - Es gilt das deutsche Urheberrecht: § 53 UrhG