CRACK INFLUENCES ON THE STATIC AND DYNAMIC CHARACTERISTIC OF A MICRO-BEAM SUBJECTED TO ELECTRO STATICALLY LOADING

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SHAHANI A.R.; REZAZADEH G.; RAHMANI A.

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Journal Paper

Paper Information

Journal: JOURNAL OF SOLID MECHANICS Year:2018 | Volume:10 | Issue:3 Page(s): 603-620

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Title

CRACK INFLUENCES ON THE STATIC AND DYNAMIC CHARACTERISTIC OF A MICRO-BEAM SUBJECTED TO ELECTRO STATICALLY LOADING

Author(s)

SHAHANI A.R. | REZAZADEH G. | RAHMANI A. | Issue Writer Certificate

Keywords

MEMS

CRACKED MICRO-BEAM

STABILITY ANALYSIS

Abstract

In the present work the pull-in voltage of a micro cracked cantilever beam subjected to nonlinear electrostatic pressure was studied. Two mathematical models were employed for modeling the problem: a lumped mass model and a classical beam model. The effect of crack in the lumped mass model is the reduction of the effective stiffness of the beam and in the beam model; the crack is modeled as a massless rotational spring the compliance of which is related to the crack depth. Using these two models the pull-in voltage is extracted in the static and dynamic cases. STABILITY ANALYSIS is also accomplished. It has been observed that the pull-in voltage decreases as the crack depth increases and also when the crack approaches the clamped support of the beam. The finding of this research can further be used as a non-destructive test procedure for detecting cracks in micro-beams.

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APA: Copy

SHAHANI, A.R., REZAZADEH, G., & RAHMANI, A.. (2018). CRACK INFLUENCES ON THE STATIC AND DYNAMIC CHARACTERISTIC OF A MICRO-BEAM SUBJECTED TO ELECTRO STATICALLY LOADING. JOURNAL OF SOLID MECHANICS, 10(3), 603-620. SID. https://sid.ir/paper/319568/en

Vancouver: Copy

SHAHANI A.R., REZAZADEH G., RAHMANI A.. CRACK INFLUENCES ON THE STATIC AND DYNAMIC CHARACTERISTIC OF A MICRO-BEAM SUBJECTED TO ELECTRO STATICALLY LOADING. JOURNAL OF SOLID MECHANICS[Internet]. 2018;10(3):603-620. Available from: https://sid.ir/paper/319568/en

IEEE: Copy

A.R. SHAHANI, G. REZAZADEH, and A. RAHMANI, “CRACK INFLUENCES ON THE STATIC AND DYNAMIC CHARACTERISTIC OF A MICRO-BEAM SUBJECTED TO ELECTRO STATICALLY LOADING,” JOURNAL OF SOLID MECHANICS, vol. 10, no. 3, pp. 603–620, 2018, [Online]. Available: https://sid.ir/paper/319568/en

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