Fracture mechanics analysis of damaged turbine rotor discs using finite element method | Zendy

Ivana Vasović | Zendy; Stevan Maksimović | Zendy; Dragi Stamenković | Zendy; Slobodan Stupar | Zendy; Mirko Maksimović | Zendy; Gordana Bakić | Zendy

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Fracture mechanics analysis of damaged turbine rotor discs using finite element method

Author(s) -

Ivana Vasović,

Stevan Maksimović,

Dragi Stamenković,

Slobodan Stupar,

Mirko Maksimović,

Gordana Bakić

Publication year - 2013

Publication title -

thermal science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.339

H-Index - 43

eISSN - 2334-7163

pISSN - 0354-9836

DOI - 10.2298/tsci121107176v

Subject(s) - finite element method , stress intensity factor , fracture mechanics , structural engineering , rotor (electric) , turbine , fracture (geology) , stress (linguistics) , principal stress , stress concentration , point (geometry) , materials science , mechanics , mechanical engineering , engineering , mathematics , geometry , physics , composite material , shear stress , linguistics , philosophy

This paper presents evaluation fracture mechanics parameters in low pressure turbine components. Critical locations such as keyway and dovetail area are experiencing stress concentration leading to crack initiation. Stress intensity factors were evaluated using the J-Integral approach available within ANSYS software code. The finite element method allowed the prediction of the point of crack initiation and the crack propagation using the orientations of the maximum principal stresses. Special attention in this investigation is focused to develop analytic expressions for stress intensity factors at critical location of low pres-sure steam turbine disc. [Projekat Ministarstva nauke Republike Srbije, br. I-174001 i br. TR-35045

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