Numerical Simulation of Creep Damage and Life Prediction of Superalloy Turbine Blade
Joint Authors
Liu, Yinghua
Liu, Donghuan
Li, Haisheng
Source
Mathematical Problems in Engineering
Issue
Vol. 2015, Issue 2015 (31 Dec. 2015), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2015-05-19
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Creep caused failure is an important failure mode of the turbine blade.
A numerical approach of life assessment of the superalloy turbine blade is proposed in the present paper based on the Lemaitre-Chaboche creep damage model.
Material damage is introduced into each element based on the ANSYS APDL function, and the creep damage effect is considered through the modification of Young’s modulus.
At last, the strength life and stiffness life of the blade can be obtained through the maximum damage and maximum creep strain criterion, respectively.
The present method can not only consider the effect of creep damage, but also give the time histories of the element stresses, damage, and creep strain.
The above life prediction results based on the proposed method are compared with the θ projection method, and the results suggest that the present life prediction method of turbine blade is feasible and turbine blade’s life in the present study is determined by creep fracture rather than creep deformation.
American Psychological Association (APA)
Liu, Donghuan& Li, Haisheng& Liu, Yinghua. 2015. Numerical Simulation of Creep Damage and Life Prediction of Superalloy Turbine Blade. Mathematical Problems in Engineering،Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074607
Modern Language Association (MLA)
Liu, Donghuan…[et al.]. Numerical Simulation of Creep Damage and Life Prediction of Superalloy Turbine Blade. Mathematical Problems in Engineering No. 2015 (2015), pp.1-10.
https://search.emarefa.net/detail/BIM-1074607
American Medical Association (AMA)
Liu, Donghuan& Li, Haisheng& Liu, Yinghua. Numerical Simulation of Creep Damage and Life Prediction of Superalloy Turbine Blade. Mathematical Problems in Engineering. 2015. Vol. 2015, no. 2015, pp.1-10.
https://search.emarefa.net/detail/BIM-1074607
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1074607