Quantification of creep stresses within HAZ in welded branch junctions

J. J. Han; Y. J. Kim; D. W. Jerng; K. Nikbin; D. Dean

doi:10.1111/ffe.12223

Quantification of creep stresses within HAZ in welded branch junctions

J. J. Han, Y. J. Kim, D. W. Jerng, K. Nikbin, D. Dean

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

9 Citations (Scopus)

Abstract

This paper quantifies the mismatch effect in creep properties on creep stresses in the heat-affected zone of welded branches using systematic elastic-creep finite element analysis. It is found that the section-averaged normalized stresses in the heat-affected zone can be uniquely characterized by the mismatch factor in creep. The relationship is almost linear and is not so sensitive to the loading condition. Implication to practical creep life assessment of welded branch components is discussed in the context of the R5 procedure.

Original language	English
Pages (from-to)	113-124
Number of pages	12
Journal	Fatigue and Fracture of Engineering Materials and Structures
Volume	38
Issue number	1
DOIs	https://doi.org/10.1111/ffe.12223
Publication status	Published - 2015 Jan 1
Externally published	Yes

Keywords

Creep mismatch
Creep stresses
Finite element analysis
Heat-affected zone
Welded branch junctions.

ASJC Scopus subject areas

Materials Science(all)
Mechanics of Materials
Mechanical Engineering

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10.1111/ffe.12223

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title = "Quantification of creep stresses within HAZ in welded branch junctions",

abstract = "This paper quantifies the mismatch effect in creep properties on creep stresses in the heat-affected zone of welded branches using systematic elastic-creep finite element analysis. It is found that the section-averaged normalized stresses in the heat-affected zone can be uniquely characterized by the mismatch factor in creep. The relationship is almost linear and is not so sensitive to the loading condition. Implication to practical creep life assessment of welded branch components is discussed in the context of the R5 procedure.",

keywords = "Creep mismatch, Creep stresses, Finite element analysis, Heat-affected zone, Welded branch junctions.",

author = "Han, {J. J.} and Kim, {Y. J.} and Jerng, {D. W.} and K. Nikbin and D. Dean",

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T1 - Quantification of creep stresses within HAZ in welded branch junctions

AU - Han, J. J.

AU - Kim, Y. J.

AU - Jerng, D. W.

AU - Nikbin, K.

AU - Dean, D.

PY - 2015/1/1

Y1 - 2015/1/1

N2 - This paper quantifies the mismatch effect in creep properties on creep stresses in the heat-affected zone of welded branches using systematic elastic-creep finite element analysis. It is found that the section-averaged normalized stresses in the heat-affected zone can be uniquely characterized by the mismatch factor in creep. The relationship is almost linear and is not so sensitive to the loading condition. Implication to practical creep life assessment of welded branch components is discussed in the context of the R5 procedure.

AB - This paper quantifies the mismatch effect in creep properties on creep stresses in the heat-affected zone of welded branches using systematic elastic-creep finite element analysis. It is found that the section-averaged normalized stresses in the heat-affected zone can be uniquely characterized by the mismatch factor in creep. The relationship is almost linear and is not so sensitive to the loading condition. Implication to practical creep life assessment of welded branch components is discussed in the context of the R5 procedure.

KW - Creep mismatch

KW - Creep stresses

KW - Finite element analysis

KW - Heat-affected zone

KW - Welded branch junctions.

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SN - 8756-758X

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SP - 113

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JO - Fatigue and Fracture of Engineering Materials and Structures

JF - Fatigue and Fracture of Engineering Materials and Structures

IS - 1

ER -

Quantification of creep stresses within HAZ in welded branch junctions

Abstract

Keywords

ASJC Scopus subject areas

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