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A continuum based macroscopic unified low- and high cycle fatigue model

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A continuum based macroscopic unified low- and high cycle fatigue model. / Frondelius, Tero; Holopainen, Sami; Kouhia, Reijo; Ottosen, Niels Saabye; Ristinmaa, Matti; Vaara, Joona.

In: MATEC Web of Conferences, Vol. 300, 16008, 02.12.2019.

Research output: Contribution to journalConference articleScientificpeer-review

Harvard

Frondelius, T, Holopainen, S, Kouhia, R, Ottosen, NS, Ristinmaa, M & Vaara, J 2019, 'A continuum based macroscopic unified low- and high cycle fatigue model', MATEC Web of Conferences, vol. 300, 16008. https://doi.org/10.1051/matecconf/201930016008

APA

Frondelius, T., Holopainen, S., Kouhia, R., Ottosen, N. S., Ristinmaa, M., & Vaara, J. (2019). A continuum based macroscopic unified low- and high cycle fatigue model. MATEC Web of Conferences, 300, [16008]. https://doi.org/10.1051/matecconf/201930016008

Vancouver

Frondelius T, Holopainen S, Kouhia R, Ottosen NS, Ristinmaa M, Vaara J. A continuum based macroscopic unified low- and high cycle fatigue model. MATEC Web of Conferences. 2019 Dec 2;300. 16008. https://doi.org/10.1051/matecconf/201930016008

Author

Frondelius, Tero ; Holopainen, Sami ; Kouhia, Reijo ; Ottosen, Niels Saabye ; Ristinmaa, Matti ; Vaara, Joona. / A continuum based macroscopic unified low- and high cycle fatigue model. In: MATEC Web of Conferences. 2019 ; Vol. 300.

Bibtex - Download

@article{2329e49d91994b0bb7cd0b84ae2e7f9c,
title = "A continuum based macroscopic unified low- and high cycle fatigue model",
abstract = "In this work, an extension of a previously developed continuum based high-cycle fatigue model is enhanced to also capture the low-cycle fatigue regime, where significant plastic deformation of the bulk material takes place. Coupling of the LCFand HCF-models is due to the damage evolution equation. The high-cycle part of the model is based on the concepts of a moving endurance surface in the stress space with an associated evolving isotropic damage variable. Damage evolution in the low-cycle part is determined via plastic deformations and endurance function. For the plastic behaviour a non-linear isotropic and kinematic hardening J2-plasticity model is adopted. Within this unified approach, there is no need for heuristic cycle-counting approaches since the model is formulated by means of evolution equations, i.e. incremental relations, and not changes per cycle. Moreover, the model is inherently multiaxial and treats the uniaxial and multiaxial stress histories in the same manner. Calibration of the model parameters is discussed and results from some test cases are shown.",
author = "Tero Frondelius and Sami Holopainen and Reijo Kouhia and Ottosen, {Niels Saabye} and Matti Ristinmaa and Joona Vaara",
year = "2019",
month = "12",
day = "2",
doi = "10.1051/matecconf/201930016008",
language = "English",
volume = "300",
journal = "MATEC Web of Conferences",
issn = "2274-7214",
publisher = "EDP Sciences",

}

RIS (suitable for import to EndNote) - Download

TY - JOUR

T1 - A continuum based macroscopic unified low- and high cycle fatigue model

AU - Frondelius, Tero

AU - Holopainen, Sami

AU - Kouhia, Reijo

AU - Ottosen, Niels Saabye

AU - Ristinmaa, Matti

AU - Vaara, Joona

PY - 2019/12/2

Y1 - 2019/12/2

N2 - In this work, an extension of a previously developed continuum based high-cycle fatigue model is enhanced to also capture the low-cycle fatigue regime, where significant plastic deformation of the bulk material takes place. Coupling of the LCFand HCF-models is due to the damage evolution equation. The high-cycle part of the model is based on the concepts of a moving endurance surface in the stress space with an associated evolving isotropic damage variable. Damage evolution in the low-cycle part is determined via plastic deformations and endurance function. For the plastic behaviour a non-linear isotropic and kinematic hardening J2-plasticity model is adopted. Within this unified approach, there is no need for heuristic cycle-counting approaches since the model is formulated by means of evolution equations, i.e. incremental relations, and not changes per cycle. Moreover, the model is inherently multiaxial and treats the uniaxial and multiaxial stress histories in the same manner. Calibration of the model parameters is discussed and results from some test cases are shown.

AB - In this work, an extension of a previously developed continuum based high-cycle fatigue model is enhanced to also capture the low-cycle fatigue regime, where significant plastic deformation of the bulk material takes place. Coupling of the LCFand HCF-models is due to the damage evolution equation. The high-cycle part of the model is based on the concepts of a moving endurance surface in the stress space with an associated evolving isotropic damage variable. Damage evolution in the low-cycle part is determined via plastic deformations and endurance function. For the plastic behaviour a non-linear isotropic and kinematic hardening J2-plasticity model is adopted. Within this unified approach, there is no need for heuristic cycle-counting approaches since the model is formulated by means of evolution equations, i.e. incremental relations, and not changes per cycle. Moreover, the model is inherently multiaxial and treats the uniaxial and multiaxial stress histories in the same manner. Calibration of the model parameters is discussed and results from some test cases are shown.

U2 - 10.1051/matecconf/201930016008

DO - 10.1051/matecconf/201930016008

M3 - Conference article

VL - 300

JO - MATEC Web of Conferences

JF - MATEC Web of Conferences

SN - 2274-7214

M1 - 16008

ER -