Approximate J estimates for combined primary and secondary stresses with large elastic follow-up

Tae Kwang Song; Chang Young Oh; Yun Jae Kim; Robert A. Ainsworth; Kamran Nikbin

doi:10.1016/j.ijpvp.2013.07.005

Approximate J estimates for combined primary and secondary stresses with large elastic follow-up

Tae Kwang Song
, Chang Young Oh
, Yun Jae Kim^*
, Robert A. Ainsworth
, Kamran Nikbin

^*Corresponding author for this work

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

13 Citations (Scopus)

Abstract

This paper proposes the V-factor for approximate J estimates under combined primary and secondary stresses with large elastic follow-up within the failure assessment diagram approach. The elastic follow-up is characterized by three parameters. The first two are the relative magnitudes of the primary load and of the secondary stress, β. The third parameter is the initial slope of the Vo-β curve where Vo is the value of V for zero primary load. Elastic follow-up effects are more pronounced for contained yielding, smaller β and a larger initial slope of the Vo-β curve. An approximate expression for V/V_o is proposed, showing good agreements with finite element solutions.

Original language	English
Pages (from-to)	217-231
Number of pages	15
Journal	International Journal of Pressure Vessels and Piping
Volume	111-112
DOIs	https://doi.org/10.1016/j.ijpvp.2013.07.005
Publication status	Published - 2013 Nov

Bibliographical note

Funding Information:
This research is supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012M2B2A9A02029354 ).

Keywords

Elastic follow-up
Finite element analysis
J-integral
Reference stress
Secondary stress effect

ASJC Scopus subject areas

General Materials Science
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.ijpvp.2013.07.005

Cite this

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title = "Approximate J estimates for combined primary and secondary stresses with large elastic follow-up",

abstract = "This paper proposes the V-factor for approximate J estimates under combined primary and secondary stresses with large elastic follow-up within the failure assessment diagram approach. The elastic follow-up is characterized by three parameters. The first two are the relative magnitudes of the primary load and of the secondary stress, β. The third parameter is the initial slope of the Vo-β curve where Vo is the value of V for zero primary load. Elastic follow-up effects are more pronounced for contained yielding, smaller β and a larger initial slope of the Vo-β curve. An approximate expression for V/Vo is proposed, showing good agreements with finite element solutions.",

keywords = "Elastic follow-up, Finite element analysis, J-integral, Reference stress, Secondary stress effect",

author = "Song, \{Tae Kwang\} and Oh, \{Chang Young\} and Kim, \{Yun Jae\} and Ainsworth, \{Robert A.\} and Kamran Nikbin",

note = "Funding Information: This research is supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012M2B2A9A02029354 ).",

year = "2013",

month = nov,

doi = "10.1016/j.ijpvp.2013.07.005",

language = "English",

volume = "111-112",

pages = "217--231",

journal = "International Journal of Pressure Vessels and Piping",

issn = "0308-0161",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Approximate J estimates for combined primary and secondary stresses with large elastic follow-up

AU - Song, Tae Kwang

AU - Oh, Chang Young

AU - Kim, Yun Jae

AU - Ainsworth, Robert A.

AU - Nikbin, Kamran

N1 - Funding Information: This research is supported by the National Research Foundation of Korea (NRF) grant funded by the Korea Government (MEST) (No. 2012M2B2A9A02029354 ).

PY - 2013/11

Y1 - 2013/11

N2 - This paper proposes the V-factor for approximate J estimates under combined primary and secondary stresses with large elastic follow-up within the failure assessment diagram approach. The elastic follow-up is characterized by three parameters. The first two are the relative magnitudes of the primary load and of the secondary stress, β. The third parameter is the initial slope of the Vo-β curve where Vo is the value of V for zero primary load. Elastic follow-up effects are more pronounced for contained yielding, smaller β and a larger initial slope of the Vo-β curve. An approximate expression for V/Vo is proposed, showing good agreements with finite element solutions.

AB - This paper proposes the V-factor for approximate J estimates under combined primary and secondary stresses with large elastic follow-up within the failure assessment diagram approach. The elastic follow-up is characterized by three parameters. The first two are the relative magnitudes of the primary load and of the secondary stress, β. The third parameter is the initial slope of the Vo-β curve where Vo is the value of V for zero primary load. Elastic follow-up effects are more pronounced for contained yielding, smaller β and a larger initial slope of the Vo-β curve. An approximate expression for V/Vo is proposed, showing good agreements with finite element solutions.

KW - Elastic follow-up

KW - Finite element analysis

KW - J-integral

KW - Reference stress

KW - Secondary stress effect

UR - https://www.scopus.com/pages/publications/84887607670

U2 - 10.1016/j.ijpvp.2013.07.005

DO - 10.1016/j.ijpvp.2013.07.005

M3 - Article

AN - SCOPUS:84887607670

SN - 0308-0161

VL - 111-112

SP - 217

EP - 231

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

ER -

Approximate J estimates for combined primary and secondary stresses with large elastic follow-up

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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