Elastic-Plastic Analysis of Rotating Disk to Predict Burst Speed |
Author(s): |
| Vinaykumar P S , Dayananda Sagar College of Engineering; Ramesha H, Dayananda Sagar College of Engineering |
Keywords: |
| Burst Speed, Numerical Prediction, Plasticity, Udimet 720, Plastic Strain |
Abstract |
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Design of turboshaft engines abide by rules made manufacturers to prove integrity of rotating parts (disks) by over-speed experiments. The rotating Parts could burst under mechanical and thermal loads even in not considering the rotation speed. Numerical Simulations carried out using large deformations elastoplastic finite element model and estimate at the moment the burst speed of disks designed in Udimet 720, a Nickel based super-alloy. The burst speed prediction of a rotating disk is obtained by limit analysis. Material properties which effect the burst limit speed are given in the work. In this thesis, the result is obtained giving more importance to the simulation of Udimet 720 disk disruption at ambient temperature and burst speed is mainly depended by the plasticity criterion and by the limiting breaking stress. Burst speed of rotating disks is purely the plastic strain based phenomenon. |
Other Details |
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Paper ID: IJSRDV5I110150 Published in: Volume : 5, Issue : 11 Publication Date: 01/02/2018 Page(s): 240-241 |
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