Title :
A study on suitability of functionally graded material for spacer application
Author :
Ganga, S. ; Dwarakanath, K. ; Natarajan, A.A. ; VijayaRaghavan, M.G. ; Ohri, Lokesh ; Vaikundh, R.
Author_Institution :
Central Power Res. Inst., Bangalore, India
Abstract :
The electric field distribution for a functionally graded material (FGM) of maximum three layers has been studied by employing finite element method. Five different permittivities have been considered. From the present study it is observed that the electric field enhancement at triple junction is reduced in FGM as compared to a single layer spacer. The present study indicates that the stress concentration is not localized to triple junction only. In a multi layer spacer the shape of the particle and location plays a dominant role in the enhancement of overall stress. A detailed analysis shows that the performance of FGM appears to be better than single layer spacer.
Keywords :
finite element analysis; functionally graded materials; multilayers; permittivity; stress effects; FGM; electric field distribution; electric field enhancement; finite element method; functionally graded material; multilayer spacer; permittivity; single layer spacer; spacer application; stress concentration; triple junction; Ceramics; Dielectrics; Electrodes; Gas insulation; Geographic Information Systems; Numerical models; Permittivity; Solid modeling; Thermal resistance; Thermal stresses;
Conference_Titel :
Solid Dielectrics, 2004. ICSD 2004. Proceedings of the 2004 IEEE International Conference on
Print_ISBN :
0-7803-8348-6
DOI :
10.1109/ICSD.2004.1350483
