Engineering estimates of crack opening displacement for non-idealized circumferential through-wall cracks in pipe

Doo Ho Cho; An Dong Shin; Nam Su Huh; Hyun Ik Jeon

doi:10.1016/j.engfracmech.2015.06.004

Engineering estimates of crack opening displacement for non-idealized circumferential through-wall cracks in pipe

Doo Ho Cho, An Dong Shin, Nam Su Huh, Hyun Ik Jeon

Dept. of Mechanical System and Design Engineering

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

4 Scopus citations

Abstract

The present paper provides the engineering estimates of non-linear crack opening displacement (COD) for a circumferential non-idealized through-wall crack in a pipe based on both the GE/EPRI and the enhanced reference stress methods. For the GE/EPRI-type solution, the h₂ values are newly calibrated based on the elastic-plastic finite element analyses. Also, elastic COD and the reference load solutions are proposed. Then, the proposed engineering estimates are validated against the FE results using actual tensile data of SA312 Type 316 stainless steel. From these comparisons, it is revealed that the enhanced reference stress method provides the best and overall satisfactory results.

Original language	English
Pages (from-to)	236-254
Number of pages	19
Journal	Engineering Fracture Mechanics
Volume	142
DOIs	https://doi.org/10.1016/j.engfracmech.2015.06.004
State	Published - 1 Jul 2015

Keywords

Circumferential non-idealized through-wall crack (Circumferential NiTWC)
Crack opening displacement (COD)
Enhanced reference stress (ERS) method
Finite element (FE) analysis
Optimized reference load (Q<inf>oR</inf>)
Plastic influence function (h<inf>2</inf>)

Access to Document

10.1016/j.engfracmech.2015.06.004

Cite this

@article{7b5a58807a644db7ae03b4ac023f1454,

title = "Engineering estimates of crack opening displacement for non-idealized circumferential through-wall cracks in pipe",

abstract = "The present paper provides the engineering estimates of non-linear crack opening displacement (COD) for a circumferential non-idealized through-wall crack in a pipe based on both the GE/EPRI and the enhanced reference stress methods. For the GE/EPRI-type solution, the h2 values are newly calibrated based on the elastic-plastic finite element analyses. Also, elastic COD and the reference load solutions are proposed. Then, the proposed engineering estimates are validated against the FE results using actual tensile data of SA312 Type 316 stainless steel. From these comparisons, it is revealed that the enhanced reference stress method provides the best and overall satisfactory results.",

keywords = "Circumferential non-idealized through-wall crack (Circumferential NiTWC), Crack opening displacement (COD), Enhanced reference stress (ERS) method, Finite element (FE) analysis, Optimized reference load (Q<inf>oR</inf>), Plastic influence function (h<inf>2</inf>)",

author = "Cho, \{Doo Ho\} and Shin, \{An Dong\} and Huh, \{Nam Su\} and Jeon, \{Hyun Ik\}",

note = "Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = jul,

day = "1",

doi = "10.1016/j.engfracmech.2015.06.004",

language = "English",

volume = "142",

pages = "236--254",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

}

TY - JOUR

T1 - Engineering estimates of crack opening displacement for non-idealized circumferential through-wall cracks in pipe

AU - Cho, Doo Ho

AU - Shin, An Dong

AU - Huh, Nam Su

AU - Jeon, Hyun Ik

PY - 2015/7/1

Y1 - 2015/7/1

N2 - The present paper provides the engineering estimates of non-linear crack opening displacement (COD) for a circumferential non-idealized through-wall crack in a pipe based on both the GE/EPRI and the enhanced reference stress methods. For the GE/EPRI-type solution, the h2 values are newly calibrated based on the elastic-plastic finite element analyses. Also, elastic COD and the reference load solutions are proposed. Then, the proposed engineering estimates are validated against the FE results using actual tensile data of SA312 Type 316 stainless steel. From these comparisons, it is revealed that the enhanced reference stress method provides the best and overall satisfactory results.

AB - The present paper provides the engineering estimates of non-linear crack opening displacement (COD) for a circumferential non-idealized through-wall crack in a pipe based on both the GE/EPRI and the enhanced reference stress methods. For the GE/EPRI-type solution, the h2 values are newly calibrated based on the elastic-plastic finite element analyses. Also, elastic COD and the reference load solutions are proposed. Then, the proposed engineering estimates are validated against the FE results using actual tensile data of SA312 Type 316 stainless steel. From these comparisons, it is revealed that the enhanced reference stress method provides the best and overall satisfactory results.

KW - Circumferential non-idealized through-wall crack (Circumferential NiTWC)

KW - Crack opening displacement (COD)

KW - Enhanced reference stress (ERS) method

KW - Finite element (FE) analysis

KW - Optimized reference load (Q<inf>oR</inf>)

KW - Plastic influence function (h<inf>2</inf>)

UR - http://www.scopus.com/inward/record.url?scp=84934984523&partnerID=8YFLogxK

U2 - 10.1016/j.engfracmech.2015.06.004

DO - 10.1016/j.engfracmech.2015.06.004

M3 - Article

AN - SCOPUS:84934984523

SN - 0013-7944

VL - 142

SP - 236

EP - 254

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -

Engineering estimates of crack opening displacement for non-idealized circumferential through-wall cracks in pipe

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this