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

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

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-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 languageEnglish
Pages932-933
Number of pages2
Publication statusPublished - 2017
Externally publishedYes
Event14th International Conference on Fracture, ICF 2017 - Rhodes, Greece
Duration: 18 Jun 201720 Jun 2017

Conference

Conference14th International Conference on Fracture, ICF 2017
Country/TerritoryGreece
CityRhodes
Period18/06/1720/06/17

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