Comparison of Findley and MWCM multiaxial fatigue methods using the notch stress method on welded joints

Nimai   Bibbo; Vikas  Arora; Mikkel Melters Pedersen

doi:10.1016/j.prostr.2021.03.012

Comparison of Findley and MWCM multiaxial fatigue methods using the notch stress method on welded joints

Nimai Bibbo^*, Vikas Arora, Mikkel Melters Pedersen

^*Corresponding author for this work

Department of Mechanical and Production Engineering - Design and Manufacturing

Research output: Contribution to book/anthology/report/proceeding › Article in proceedings › Research › peer-review

1 Citation (Scopus)

Abstract

Fatigue assessment of welded joints is vital for accurately designing and predicting lifetime of many engineering structures. Assessing weld fatigue is challenging due to the high variability in weld quality and geometry because of the volatile nature of the joining method and further challenges arise when assessing multiaxial fatigue. In this paper, two approaches, the Findley criterion and Modified Wöhler Curve Method, on several multiaxial experimental data sets of welded joints are compared to predict the fatigue life of the welded joints. Six experimental sets from literature are tested under a proportional torsion/bending multiaxial load. The notch stress method is used for calculating stresses at the toes of a weld.

Original language	English
Title of host publication	Procedia Structural Integrity
Number of pages	5
Volume	31
Publisher	Elsevier
Publication date	18 Jun 2021
Pages	75-79
DOIs	https://doi.org/10.1016/j.prostr.2021.03.012
Publication status	Published - 18 Jun 2021
Event	4th International Conference on Structural Integrity and Durability - Centre for Advanced Academic Studies , Dubrovnik, Croatia Duration: 15 Sept 2020 → 18 Sept 2020 http://icsid2020.fsb.hr/

Conference

Conference	4th International Conference on Structural Integrity and Durability
Location	Centre for Advanced Academic Studies
Country/Territory	Croatia
City	Dubrovnik
Period	15/09/2020 → 18/09/2020
Internet address	http://icsid2020.fsb.hr/

Keywords

Critical plane approach
FEM
Findley
MWCM
S-N fatigue
Welded joint

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10.1016/j.prostr.2021.03.012

https://portal.findresearcher.sdu.dk/da/publications/comparison-of-findley-and-mwcm-multiaxial-fatigue-methods-using-t-2

Cite this

@inproceedings{76127c1c9b5f49dd9833d834199164f0,

title = "Comparison of Findley and MWCM multiaxial fatigue methods using the notch stress method on welded joints",

abstract = "Fatigue assessment of welded joints is vital for accurately designing and predicting lifetime of many engineering structures. Assessing weld fatigue is challenging due to the high variability in weld quality and geometry because of the volatile nature of the joining method and further challenges arise when assessing multiaxial fatigue. In this paper, two approaches, the Findley criterion and Modified W{\"o}hler Curve Method, on several multiaxial experimental data sets of welded joints are compared to predict the fatigue life of the welded joints. Six experimental sets from literature are tested under a proportional torsion/bending multiaxial load. The notch stress method is used for calculating stresses at the toes of a weld.",

keywords = "Critical plane approach, FEM, Findley, MWCM, S-N fatigue, Welded joint",

author = "Nimai Bibbo and Vikas Arora and Pedersen, {Mikkel Melters}",

year = "2021",

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doi = "10.1016/j.prostr.2021.03.012",

language = "English",

volume = "31",

pages = "75--79",

booktitle = "Procedia Structural Integrity",

publisher = "Elsevier",

note = "4th International Conference on Structural Integrity and Durability ; Conference date: 15-09-2020 Through 18-09-2020",

url = "http://icsid2020.fsb.hr/",

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TY - GEN

T1 - Comparison of Findley and MWCM multiaxial fatigue methods using the notch stress method on welded joints

AU - Bibbo, Nimai

AU - Arora, Vikas

AU - Pedersen, Mikkel Melters

PY - 2021/6/18

Y1 - 2021/6/18

N2 - Fatigue assessment of welded joints is vital for accurately designing and predicting lifetime of many engineering structures. Assessing weld fatigue is challenging due to the high variability in weld quality and geometry because of the volatile nature of the joining method and further challenges arise when assessing multiaxial fatigue. In this paper, two approaches, the Findley criterion and Modified Wöhler Curve Method, on several multiaxial experimental data sets of welded joints are compared to predict the fatigue life of the welded joints. Six experimental sets from literature are tested under a proportional torsion/bending multiaxial load. The notch stress method is used for calculating stresses at the toes of a weld.

AB - Fatigue assessment of welded joints is vital for accurately designing and predicting lifetime of many engineering structures. Assessing weld fatigue is challenging due to the high variability in weld quality and geometry because of the volatile nature of the joining method and further challenges arise when assessing multiaxial fatigue. In this paper, two approaches, the Findley criterion and Modified Wöhler Curve Method, on several multiaxial experimental data sets of welded joints are compared to predict the fatigue life of the welded joints. Six experimental sets from literature are tested under a proportional torsion/bending multiaxial load. The notch stress method is used for calculating stresses at the toes of a weld.

KW - Critical plane approach

KW - FEM

KW - Findley

KW - MWCM

KW - S-N fatigue

KW - Welded joint

UR - http://www.scopus.com/inward/record.url?scp=85125505773&partnerID=8YFLogxK

U2 - 10.1016/j.prostr.2021.03.012

DO - 10.1016/j.prostr.2021.03.012

M3 - Article in proceedings

VL - 31

SP - 75

EP - 79

BT - Procedia Structural Integrity

PB - Elsevier

T2 - 4th International Conference on Structural Integrity and Durability

Y2 - 15 September 2020 through 18 September 2020

ER -

Comparison of Findley and MWCM multiaxial fatigue methods using the notch stress method on welded joints

Abstract

Conference

Keywords

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