Fatigue life prediction of thin-walled structures subjected to combined thermal-acoustic loadings

Y. Sun; J. Ge; Y. Zhang

Fatigue life prediction of thin-walled structures subjected to combined thermal-acoustic loadings

Y. Sun^*, J. Ge, Y. Zhang

^*Corresponding author for this work

Harbin Institute of Technology

Research output: Contribution to conference › Paper › peer-review

Abstract

The fatigue life of thin-walled metal structures under combined thermal-acoustic loadings is predicted based on critical plane model. The thermal loading could induce buckling and "snap through" type nonlinear vibrations of the structure, and makes it subject to large mean stresses. In order to take into account the effect of mean stresses induced by temperature loading, a new critical plane model based on shear strain is proposed. The model is first validated with experimental data under various strain paths, and then applied to predict the fatigue life of thin-walled metal structures under combined thermal-acoustic loadings. The result indicates that the thermal loading can significantly reduce the estimated fatigue life of the structure.

Original language	English
Pages	932-933
Number of pages	2
Publication status	Published - 2017
Externally published	Yes
Event	14th International Conference on Fracture, ICF 2017 - Rhodes, Greece Duration: 18 Jun 2017 → 20 Jun 2017

Conference

Conference	14th International Conference on Fracture, ICF 2017
Country/Territory	Greece
City	Rhodes
Period	18/06/17 → 20/06/17

Cite this

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title = "Fatigue life prediction of thin-walled structures subjected to combined thermal-acoustic loadings",

abstract = "The fatigue life of thin-walled metal structures under combined thermal-acoustic loadings is predicted based on critical plane model. The thermal loading could induce buckling and {"}snap through{"} type nonlinear vibrations of the structure, and makes it subject to large mean stresses. In order to take into account the effect of mean stresses induced by temperature loading, a new critical plane model based on shear strain is proposed. The model is first validated with experimental data under various strain paths, and then applied to predict the fatigue life of thin-walled metal structures under combined thermal-acoustic loadings. The result indicates that the thermal loading can significantly reduce the estimated fatigue life of the structure.",

author = "Y. Sun and J. Ge and Y. Zhang",

note = "Publisher Copyright: {\textcopyright} 2017 ICF 2017 - 14th International Conference on Fracture. All rights reserved.; 14th International Conference on Fracture, ICF 2017 ; Conference date: 18-06-2017 Through 20-06-2017",

year = "2017",

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pages = "932--933",

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TY - CONF

T1 - Fatigue life prediction of thin-walled structures subjected to combined thermal-acoustic loadings

AU - Sun, Y.

AU - Ge, J.

AU - Zhang, Y.

PY - 2017

Y1 - 2017

N2 - The fatigue life of thin-walled metal structures under combined thermal-acoustic loadings is predicted based on critical plane model. The thermal loading could induce buckling and "snap through" type nonlinear vibrations of the structure, and makes it subject to large mean stresses. In order to take into account the effect of mean stresses induced by temperature loading, a new critical plane model based on shear strain is proposed. The model is first validated with experimental data under various strain paths, and then applied to predict the fatigue life of thin-walled metal structures under combined thermal-acoustic loadings. The result indicates that the thermal loading can significantly reduce the estimated fatigue life of the structure.

AB - The fatigue life of thin-walled metal structures under combined thermal-acoustic loadings is predicted based on critical plane model. The thermal loading could induce buckling and "snap through" type nonlinear vibrations of the structure, and makes it subject to large mean stresses. In order to take into account the effect of mean stresses induced by temperature loading, a new critical plane model based on shear strain is proposed. The model is first validated with experimental data under various strain paths, and then applied to predict the fatigue life of thin-walled metal structures under combined thermal-acoustic loadings. The result indicates that the thermal loading can significantly reduce the estimated fatigue life of the structure.

UR - http://www.scopus.com/inward/record.url?scp=85065995234&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:85065995234

SP - 932

EP - 933

T2 - 14th International Conference on Fracture, ICF 2017

Y2 - 18 June 2017 through 20 June 2017

ER -

Fatigue life prediction of thin-walled structures subjected to combined thermal-acoustic loadings

Abstract

Conference

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