Mismatch effect on plastic yield loads in idealized weldments. II. Heat affected zone cracks

Yun-Jae Kim, Karl Heinz Schwalbe

Research output: Contribution to journalArticle

64 Citations (Scopus)

Abstract

In Part I, accurate closed form solutions of mismatch yield loads were given in terms of strength mismatch levels, ligament-to-weld width ratios, and crack lengths, for a middle crack tension (M(T)) plate and a single edge cracked plate in pure bending (SE(PB)). The weld configurations were idealized as a simple strip model, and the crack was assumed to be located in the centre of the weld metal. Solutions were given for two limiting out-of-plane constraint conditions, plane strain and plane stress. This paper is a continuation of Part I, providing similar solutions of mismatch yield loads when the crack is in the interface between the weld and base plate. As in Part I, useful guidelines are given for assessing welded structures with heat affected zone (HAZ) cracks, in the form of windows where the plastic yield load solutions of mismatched components can be obtained assuming the component is wholly made of either base material or weld material properties. Such guidelines could be very useful when complex components with weldments are to be assessed, for which the plastic yield load solutions are not available or difficult to find. Moreover, the effect of the crack location within the weld metal as well as of the HAZ properties on the mismatch yield load solutions is briefly discussed.

Original languageEnglish
Pages (from-to)183-199
Number of pages17
JournalEngineering Fracture Mechanics
Volume68
Issue number2
DOIs
Publication statusPublished - 2001 Feb 1
Externally publishedYes

Fingerprint

Heat affected zone
Welds
Plastics
Cracks
Metals
Ligaments
Materials properties

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials

Cite this

Mismatch effect on plastic yield loads in idealized weldments. II. Heat affected zone cracks. / Kim, Yun-Jae; Schwalbe, Karl Heinz.

In: Engineering Fracture Mechanics, Vol. 68, No. 2, 01.02.2001, p. 183-199.

Research output: Contribution to journalArticle

@article{0473ef7494c54b2889002c5ec2b1c9b7,
title = "Mismatch effect on plastic yield loads in idealized weldments. II. Heat affected zone cracks",
abstract = "In Part I, accurate closed form solutions of mismatch yield loads were given in terms of strength mismatch levels, ligament-to-weld width ratios, and crack lengths, for a middle crack tension (M(T)) plate and a single edge cracked plate in pure bending (SE(PB)). The weld configurations were idealized as a simple strip model, and the crack was assumed to be located in the centre of the weld metal. Solutions were given for two limiting out-of-plane constraint conditions, plane strain and plane stress. This paper is a continuation of Part I, providing similar solutions of mismatch yield loads when the crack is in the interface between the weld and base plate. As in Part I, useful guidelines are given for assessing welded structures with heat affected zone (HAZ) cracks, in the form of windows where the plastic yield load solutions of mismatched components can be obtained assuming the component is wholly made of either base material or weld material properties. Such guidelines could be very useful when complex components with weldments are to be assessed, for which the plastic yield load solutions are not available or difficult to find. Moreover, the effect of the crack location within the weld metal as well as of the HAZ properties on the mismatch yield load solutions is briefly discussed.",
author = "Yun-Jae Kim and Schwalbe, {Karl Heinz}",
year = "2001",
month = "2",
day = "1",
doi = "10.1016/S0013-7944(00)00094-1",
language = "English",
volume = "68",
pages = "183--199",
journal = "Engineering Fracture Mechanics",
issn = "0013-7944",
publisher = "Elsevier BV",
number = "2",

}

TY - JOUR

T1 - Mismatch effect on plastic yield loads in idealized weldments. II. Heat affected zone cracks

AU - Kim, Yun-Jae

AU - Schwalbe, Karl Heinz

PY - 2001/2/1

Y1 - 2001/2/1

N2 - In Part I, accurate closed form solutions of mismatch yield loads were given in terms of strength mismatch levels, ligament-to-weld width ratios, and crack lengths, for a middle crack tension (M(T)) plate and a single edge cracked plate in pure bending (SE(PB)). The weld configurations were idealized as a simple strip model, and the crack was assumed to be located in the centre of the weld metal. Solutions were given for two limiting out-of-plane constraint conditions, plane strain and plane stress. This paper is a continuation of Part I, providing similar solutions of mismatch yield loads when the crack is in the interface between the weld and base plate. As in Part I, useful guidelines are given for assessing welded structures with heat affected zone (HAZ) cracks, in the form of windows where the plastic yield load solutions of mismatched components can be obtained assuming the component is wholly made of either base material or weld material properties. Such guidelines could be very useful when complex components with weldments are to be assessed, for which the plastic yield load solutions are not available or difficult to find. Moreover, the effect of the crack location within the weld metal as well as of the HAZ properties on the mismatch yield load solutions is briefly discussed.

AB - In Part I, accurate closed form solutions of mismatch yield loads were given in terms of strength mismatch levels, ligament-to-weld width ratios, and crack lengths, for a middle crack tension (M(T)) plate and a single edge cracked plate in pure bending (SE(PB)). The weld configurations were idealized as a simple strip model, and the crack was assumed to be located in the centre of the weld metal. Solutions were given for two limiting out-of-plane constraint conditions, plane strain and plane stress. This paper is a continuation of Part I, providing similar solutions of mismatch yield loads when the crack is in the interface between the weld and base plate. As in Part I, useful guidelines are given for assessing welded structures with heat affected zone (HAZ) cracks, in the form of windows where the plastic yield load solutions of mismatched components can be obtained assuming the component is wholly made of either base material or weld material properties. Such guidelines could be very useful when complex components with weldments are to be assessed, for which the plastic yield load solutions are not available or difficult to find. Moreover, the effect of the crack location within the weld metal as well as of the HAZ properties on the mismatch yield load solutions is briefly discussed.

UR - http://www.scopus.com/inward/record.url?scp=0035241975&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0035241975&partnerID=8YFLogxK

U2 - 10.1016/S0013-7944(00)00094-1

DO - 10.1016/S0013-7944(00)00094-1

M3 - Article

VL - 68

SP - 183

EP - 199

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

SN - 0013-7944

IS - 2

ER -