Fatigue strength modelling of high-performing welded joints

Heikki Remes; Pasquale Gallo; Jasmin Jelovica; Jani Romanoff; Pauli Lehto

doi:10.1016/j.ijfatigue.2020.105555

Fatigue strength modelling of high-performing welded joints

Heikki Remes, Pasquale Gallo, Jasmin Jelovica, Jani Romanoff, Pauli Lehto

Energia- ja konetekniikan laitos

TRIUMF

Tutkimustuotos: Lehtiartikkeli › Article › Scientific › vertaisarvioitu

43 Sitaatiot (Scopus)

547 Lataukset (Pure)

Abstrakti

This paper investigates the fatigue strength modelling of high-performing welded steel joints. The work considers the strain-based, notch stress, averaged strain energy density approaches, and linear elastic fracture mechanics. A comparison of the methods with experimental data shows that the predictions vary significantly for different modelling assumptions. Only the microstructure-sensitive strain-based approach can predict the fatigue life of various weld geometries and plate thicknesses. The explicit modelling of the localised plasticity using the microstructure-dependent representative volume element is required for accurate prediction of the short crack initiation and growth periods, which dominate the fatigue life modelling of high-performing welds.

Alkuperäiskieli	Englanti
Artikkeli	105555
Sivumäärä	15
Julkaisu	International Journal of Fatigue
Vuosikerta	135
DOI - pysyväislinkit	https://doi.org/10.1016/j.ijfatigue.2020.105555
Tila	Julkaistu - kesäk. 2020
OKM-julkaisutyyppi	A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä

Pääsy asiakirjaan

10.1016/j.ijfatigue.2020.105555Lisenssi: CC BY

1-s2.0-S0142112320300864-mainFinal published version, 5,68 MBLisenssi: CC BY

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LInk to publication in Scopus

-: Väsymisen moniskaalamallinnus insinöörisovelluksissa: mikro- ja nanomittakaavan väsymismekanismien kokeellinen tutkimus.
Gallo, P. (Vastuullinen tutkija)
01/09/2019 → 31/12/2022
Projekti: Academy of Finland: Other research funding
Korkealaatuisten hitsien väsymislujuusmallinnus huomioiden mikrorakenne
Lehto, P. (Projektin jäsen), Åman, M. (Projektin jäsen), Remes, H. (Vastuullinen tutkija), Sarikka, T. (Projektin jäsen), Gallo, P. (Projektin jäsen) & Malitckii, E. (Projektin jäsen)
01/09/2016 → 31/12/2020
Projekti: Academy of Finland: Other research funding

i3 – Industry Innovation Infrastructure
Sainio, P. (Manager)
Insinööritieteiden korkeakoulu
Laitteistot/tilat: Facility
Solid Mechanics Laboratory (i3)
Lehto, P. (Manager)
Energia- ja konetekniikan laitos
Laitteistot/tilat: Facility

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@article{49365c48648748fa889b7d5dd22795ae,

title = "Fatigue strength modelling of high-performing welded joints",

abstract = "This paper investigates the fatigue strength modelling of high-performing welded steel joints. The work considers the strain-based, notch stress, averaged strain energy density approaches, and linear elastic fracture mechanics. A comparison of the methods with experimental data shows that the predictions vary significantly for different modelling assumptions. Only the microstructure-sensitive strain-based approach can predict the fatigue life of various weld geometries and plate thicknesses. The explicit modelling of the localised plasticity using the microstructure-dependent representative volume element is required for accurate prediction of the short crack initiation and growth periods, which dominate the fatigue life modelling of high-performing welds.",

keywords = "Fatigue strength, Welded joint, Strain-based approach, Notch stress approach, Strain energy density",

author = "Heikki Remes and Pasquale Gallo and Jasmin Jelovica and Jani Romanoff and Pauli Lehto",

year = "2020",

month = jun,

doi = "10.1016/j.ijfatigue.2020.105555",

language = "English",

volume = "135",

journal = "International Journal of Fatigue",

issn = "0142-1123",

publisher = "Elsevier",

}

TY - JOUR

T1 - Fatigue strength modelling of high-performing welded joints

AU - Remes, Heikki

AU - Gallo, Pasquale

AU - Jelovica, Jasmin

AU - Romanoff, Jani

AU - Lehto, Pauli

PY - 2020/6

Y1 - 2020/6

N2 - This paper investigates the fatigue strength modelling of high-performing welded steel joints. The work considers the strain-based, notch stress, averaged strain energy density approaches, and linear elastic fracture mechanics. A comparison of the methods with experimental data shows that the predictions vary significantly for different modelling assumptions. Only the microstructure-sensitive strain-based approach can predict the fatigue life of various weld geometries and plate thicknesses. The explicit modelling of the localised plasticity using the microstructure-dependent representative volume element is required for accurate prediction of the short crack initiation and growth periods, which dominate the fatigue life modelling of high-performing welds.

AB - This paper investigates the fatigue strength modelling of high-performing welded steel joints. The work considers the strain-based, notch stress, averaged strain energy density approaches, and linear elastic fracture mechanics. A comparison of the methods with experimental data shows that the predictions vary significantly for different modelling assumptions. Only the microstructure-sensitive strain-based approach can predict the fatigue life of various weld geometries and plate thicknesses. The explicit modelling of the localised plasticity using the microstructure-dependent representative volume element is required for accurate prediction of the short crack initiation and growth periods, which dominate the fatigue life modelling of high-performing welds.

KW - Fatigue strength

KW - Welded joint

KW - Strain-based approach

KW - Notch stress approach

KW - Strain energy density

UR - http://www.scopus.com/inward/record.url?scp=85079885798&partnerID=8YFLogx

U2 - 10.1016/j.ijfatigue.2020.105555

DO - 10.1016/j.ijfatigue.2020.105555

M3 - Article

SN - 0142-1123

VL - 135

JO - International Journal of Fatigue

JF - International Journal of Fatigue

M1 - 105555

ER -

Fatigue strength modelling of high-performing welded joints

Abstrakti

Pääsy asiakirjaan

Muut tiedostot ja linkit

Sormenjälki

Projektit

-: Väsymisen moniskaalamallinnus insinöörisovelluksissa: mikro- ja nanomittakaavan väsymismekanismien kokeellinen tutkimus.

Korkealaatuisten hitsien väsymislujuusmallinnus huomioiden mikrorakenne

Laitteet

i3 – Industry Innovation Infrastructure

Solid Mechanics Laboratory (i3)

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