Application of engineering ductile tearing simulation method to CRIEPI pipe test

Hyun Suk Nam; Young Ryun Oh; Yun Jae Kim; Jong Sung Kim; Naoki Miura

doi:10.1016/j.engfracmech.2015.12.012

Application of engineering ductile tearing simulation method to CRIEPI pipe test

Hyun Suk Nam, Young Ryun Oh, Yun Jae Kim, Jong Sung Kim, Naoki Miura

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

33 Citations (Scopus)

Abstract

A method to simulate ductile tearing in large-scale pipes using finite element analysis is proposed, based on the stress-modified fracture strain model. An element-size-dependent critical damage model is also introduced in damage simulations. The damage model and associate parameters are determined from tensile and fracture toughness test data. The method is applied to simulate five bending tests of circumferential cracked carbon steel pipes. Simulated results agree overall well with two through-wall cracked pipe test data, but consistently over-predict the maximum loads for three surface cracked pipe tests. Advantages of the proposed method in practical application is briefly discussed.

Original language	English
Pages (from-to)	128-142
Number of pages	15
Journal	Engineering Fracture Mechanics
Volume	153
DOIs	https://doi.org/10.1016/j.engfracmech.2015.12.012
Publication status	Published - 2016 Mar 1

Bibliographical note

Funding Information:
This research is supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2013M2A8A1040924 , No. 2007-0056094 , No. 2013M2A7A1076396 ).

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

Finite element damage analysis
Fracture simulation of circumferential cracked pipes
Multi-axial fracture strain locus

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.engfracmech.2015.12.012

Cite this

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title = "Application of engineering ductile tearing simulation method to CRIEPI pipe test",

abstract = "A method to simulate ductile tearing in large-scale pipes using finite element analysis is proposed, based on the stress-modified fracture strain model. An element-size-dependent critical damage model is also introduced in damage simulations. The damage model and associate parameters are determined from tensile and fracture toughness test data. The method is applied to simulate five bending tests of circumferential cracked carbon steel pipes. Simulated results agree overall well with two through-wall cracked pipe test data, but consistently over-predict the maximum loads for three surface cracked pipe tests. Advantages of the proposed method in practical application is briefly discussed.",

keywords = "Finite element damage analysis, Fracture simulation of circumferential cracked pipes, Multi-axial fracture strain locus",

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AU - Kim, Yun Jae

AU - Kim, Jong Sung

AU - Miura, Naoki

N1 - Funding Information: This research is supported by the Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT & Future Planning (No. 2013M2A8A1040924 , No. 2007-0056094 , No. 2013M2A7A1076396 ). Publisher Copyright: © 2015 Elsevier Ltd.

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AB - A method to simulate ductile tearing in large-scale pipes using finite element analysis is proposed, based on the stress-modified fracture strain model. An element-size-dependent critical damage model is also introduced in damage simulations. The damage model and associate parameters are determined from tensile and fracture toughness test data. The method is applied to simulate five bending tests of circumferential cracked carbon steel pipes. Simulated results agree overall well with two through-wall cracked pipe test data, but consistently over-predict the maximum loads for three surface cracked pipe tests. Advantages of the proposed method in practical application is briefly discussed.

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KW - Multi-axial fracture strain locus

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Application of engineering ductile tearing simulation method to CRIEPI pipe test

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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