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On the choice of damage variable in the continuum fatigue model based on a moving endurance surface

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On the choice of damage variable in the continuum fatigue model based on a moving endurance surface. / Saksala, Timo ; Holopainen, Sami ; Kouhia, Reijo .

Proceedings of the XII Finnish Mechanics Day. 2015. s. 57-62.

Tutkimustuotos

Harvard

Saksala, T, Holopainen, S & Kouhia, R 2015, On the choice of damage variable in the continuum fatigue model based on a moving endurance surface. julkaisussa Proceedings of the XII Finnish Mechanics Day. Sivut 57-62, FINNISH MECHANICS DAYS, 1/01/00.

APA

Saksala, T., Holopainen, S., & Kouhia, R. (2015). On the choice of damage variable in the continuum fatigue model based on a moving endurance surface. teoksessa Proceedings of the XII Finnish Mechanics Day (Sivut 57-62)

Vancouver

Saksala T, Holopainen S, Kouhia R. On the choice of damage variable in the continuum fatigue model based on a moving endurance surface. julkaisussa Proceedings of the XII Finnish Mechanics Day. 2015. s. 57-62

Author

Saksala, Timo ; Holopainen, Sami ; Kouhia, Reijo . / On the choice of damage variable in the continuum fatigue model based on a moving endurance surface. Proceedings of the XII Finnish Mechanics Day. 2015. Sivut 57-62

Bibtex - Lataa

@inproceedings{7a09c71fe0be407990d23e33419c6ab8,
title = "On the choice of damage variable in the continuum fatigue model based on a moving endurance surface",
abstract = "This paper considers two different damage formulations for modelling high-cycle fatigue of materials. The underlying fatigue model is formulated within continuum mechanics framework with the concept of a moving endurance surface. Such a model has a unique feature that it allows for the concepts of fatigue limits and damage accumulation during the load history thus avoiding cycle-counting techniques. A Scalar and tensor type of damage variables are utilized with an essentially similar type of damage evolution law. The tensor damage model capable of accounting for damage induced anisotropy is based on the gradient of the endurance surface. The performance of the scalar and tensor damage formulations are compared with different multidimensional stress histories.",
keywords = "high-cycle fatigue modelling, isotropic damage, anisotropic damage, endurance surface, evolution equations",
author = "Timo Saksala and Sami Holopainen and Reijo Kouhia",
year = "2015",
month = "5",
language = "English",
isbn = "978-952-93-5608-9",
pages = "57--62",
booktitle = "Proceedings of the XII Finnish Mechanics Day",

}

RIS (suitable for import to EndNote) - Lataa

TY - GEN

T1 - On the choice of damage variable in the continuum fatigue model based on a moving endurance surface

AU - Saksala, Timo

AU - Holopainen, Sami

AU - Kouhia, Reijo

PY - 2015/5

Y1 - 2015/5

N2 - This paper considers two different damage formulations for modelling high-cycle fatigue of materials. The underlying fatigue model is formulated within continuum mechanics framework with the concept of a moving endurance surface. Such a model has a unique feature that it allows for the concepts of fatigue limits and damage accumulation during the load history thus avoiding cycle-counting techniques. A Scalar and tensor type of damage variables are utilized with an essentially similar type of damage evolution law. The tensor damage model capable of accounting for damage induced anisotropy is based on the gradient of the endurance surface. The performance of the scalar and tensor damage formulations are compared with different multidimensional stress histories.

AB - This paper considers two different damage formulations for modelling high-cycle fatigue of materials. The underlying fatigue model is formulated within continuum mechanics framework with the concept of a moving endurance surface. Such a model has a unique feature that it allows for the concepts of fatigue limits and damage accumulation during the load history thus avoiding cycle-counting techniques. A Scalar and tensor type of damage variables are utilized with an essentially similar type of damage evolution law. The tensor damage model capable of accounting for damage induced anisotropy is based on the gradient of the endurance surface. The performance of the scalar and tensor damage formulations are compared with different multidimensional stress histories.

KW - high-cycle fatigue modelling

KW - isotropic damage

KW - anisotropic damage

KW - endurance surface

KW - evolution equations

M3 - Conference contribution

SN - 978-952-93-5608-9

SP - 57

EP - 62

BT - Proceedings of the XII Finnish Mechanics Day

ER -