Mechanical Property Variation of a Rotating Cantilever FGSW Beam under Parametric Excitation
S.N.Padhi1, K.S.Raghuram2, T.Rout3, V. Naga Sudha4, Gill Santosh Kumar5

1Dr.S.N.Padhi, Dept.of Mechanical Engg., Koneru Lakshmaiah Education Foundation, Guntur, India.
2Dr. K.S. Raghuram, Department of Mechanical engineering, Vignan’s Institute of Information Technology, Visakhapatnam, A.P., India.
3Dr.T. Rout, Dept.of Mechanical Engg., Parala Maharaja Engineering College, Berhampur, India.
4V.Naga Sudha, Dept. of Mechanical Engg., Parala Maharaja Engineering College, Berhampur, India.
5Gill Santosh Kumar, Dept. of Mechanical Engg., Parala Maharaja Engineering College, Berhampur, India.

Manuscript received on 26 August 2019. | Revised Manuscript received on 06 September 2019. | Manuscript published on 30 September 2019. | PP: 495-499 | Volume-8 Issue-11, September 2019. | Retrieval Number: K14160981119/2019©BEIESP | DOI: 10.35940/ijitee.K1416.0981119
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)

Abstract: We report here the dynamic stability of functionally graded sandwich (FGSW) rotating cantilever Timoshenko beams under parametric excitation. Power law with various indices as well as exponential law were used to find out the properties along the thickness of the FGSW beam. The stability boundaries were established using Floquet’s theory. The equation of motion was governed by Hamilton’s principle and solved by Finite element method. The power index was optimized for uniform variation of shear modulus along the thickness of FGSW beam.The shear modulus variation along the thickness of the FGSW beam was compared both by power law and exponential law.It has been confirmed that the Exponential distribution of constituent phases renders better stability compared to power law distribution of the phases in the functionally graded material(FGM).
Keywords: Exponential law, FGSW beam, Power law, Shear modulus, Stability.
Scope of the Article: