Limit loads and fracture mechanics parameters for thick-walled pipes

Nak Hyun Kim; Chang Sik Oh; Yun Jae Kim; Jong Sung Kim; Dong Wook Jerng; Peter J. Budden

doi:10.1016/j.ijpvp.2011.07.005

Limit loads and fracture mechanics parameters for thick-walled pipes

Nak Hyun Kim, Chang Sik Oh, Yun Jae Kim, Jong Sung Kim, Dong Wook Jerng, Peter J. Budden

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

35 Citations (Scopus)

Abstract

In this paper, information on plastic limit loads and both elastic and elastic-plastic fracture mechanics parameters is given for cracked thick-walled pipes with mean radius-to-thickness ratios ranging from two to five. It is found that existing limit load expressions for thin-walled pipes can be applied to thick-walled pipes, provided that they are normalized with respect to the corresponding un-cracked thick-walled pipe values. For elastic fracture mechanics parameters, FE values of the influence functions for the stress intensity factor and the crack opening displacement are tabulated. For elastic-plastic J, it is shown that existing reference stress based J estimates can be applied, provided that a proper limit load for thick-walled pipes is used.

Original language	English
Pages (from-to)	403-414
Number of pages	12
Journal	International Journal of Pressure Vessels and Piping
Volume	88
Issue number	10
DOIs	https://doi.org/10.1016/j.ijpvp.2011.07.005
Publication status	Published - 2011 Oct

Bibliographical note

Funding Information:
This work was supported by the Nuclear Research & Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea . (No. 2010T100100780 )

Copyright:
Copyright 2011 Elsevier B.V., All rights reserved.

Keywords

Crack opening displacement
J-integral estimates
Limit load
Stress intensity factor
Thick-walled pipe

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

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10.1016/j.ijpvp.2011.07.005

Cite this

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title = "Limit loads and fracture mechanics parameters for thick-walled pipes",

abstract = "In this paper, information on plastic limit loads and both elastic and elastic-plastic fracture mechanics parameters is given for cracked thick-walled pipes with mean radius-to-thickness ratios ranging from two to five. It is found that existing limit load expressions for thin-walled pipes can be applied to thick-walled pipes, provided that they are normalized with respect to the corresponding un-cracked thick-walled pipe values. For elastic fracture mechanics parameters, FE values of the influence functions for the stress intensity factor and the crack opening displacement are tabulated. For elastic-plastic J, it is shown that existing reference stress based J estimates can be applied, provided that a proper limit load for thick-walled pipes is used.",

keywords = "Crack opening displacement, J-integral estimates, Limit load, Stress intensity factor, Thick-walled pipe",

author = "Kim, {Nak Hyun} and Oh, {Chang Sik} and Kim, {Yun Jae} and Kim, {Jong Sung} and Jerng, {Dong Wook} and Budden, {Peter J.}",

note = "Funding Information: This work was supported by the Nuclear Research & Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea . (No. 2010T100100780 ) Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

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doi = "10.1016/j.ijpvp.2011.07.005",

language = "English",

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AU - Kim, Nak Hyun

AU - Oh, Chang Sik

AU - Kim, Yun Jae

AU - Kim, Jong Sung

AU - Jerng, Dong Wook

AU - Budden, Peter J.

N1 - Funding Information: This work was supported by the Nuclear Research & Development of the Korea Institute of Energy Technology Evaluation and Planning (KETEP) grant funded by the Ministry of Knowledge Economy, Republic of Korea . (No. 2010T100100780 ) Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2011/10

Y1 - 2011/10

N2 - In this paper, information on plastic limit loads and both elastic and elastic-plastic fracture mechanics parameters is given for cracked thick-walled pipes with mean radius-to-thickness ratios ranging from two to five. It is found that existing limit load expressions for thin-walled pipes can be applied to thick-walled pipes, provided that they are normalized with respect to the corresponding un-cracked thick-walled pipe values. For elastic fracture mechanics parameters, FE values of the influence functions for the stress intensity factor and the crack opening displacement are tabulated. For elastic-plastic J, it is shown that existing reference stress based J estimates can be applied, provided that a proper limit load for thick-walled pipes is used.

AB - In this paper, information on plastic limit loads and both elastic and elastic-plastic fracture mechanics parameters is given for cracked thick-walled pipes with mean radius-to-thickness ratios ranging from two to five. It is found that existing limit load expressions for thin-walled pipes can be applied to thick-walled pipes, provided that they are normalized with respect to the corresponding un-cracked thick-walled pipe values. For elastic fracture mechanics parameters, FE values of the influence functions for the stress intensity factor and the crack opening displacement are tabulated. For elastic-plastic J, it is shown that existing reference stress based J estimates can be applied, provided that a proper limit load for thick-walled pipes is used.

KW - Crack opening displacement

KW - J-integral estimates

KW - Limit load

KW - Stress intensity factor

KW - Thick-walled pipe

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Limit loads and fracture mechanics parameters for thick-walled pipes

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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