I would like to claculate the force on a PZT device. Anybody has any
suggestion about any correlation or formulation about that.

Thanx..



Mehmet.

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On Mon, 3 Aug 1998, Mark Sheplak wrote:

> Werner,
>
> I can offer you partial help.  The following paper will give you everything
> that you need for the circular case...
>
> Sheplak, M. and Dugundji, J., ``Large Deflections of Clamped Circular Plates
> Under Tension and Transitions to Membrane Behavior,''  J. Appl. Mech., Vol.
> 65, No. 1, 107-115, 1998.
>
> We developed this model to aid in the design of a piezoresistive microphone.
> It proved to be very accurate for our application. I hope that this is
> helpful to you.  If you have any questions please contact me.
>
> Regards,
>
> Mark
>
> **********************************************
> Mark Sheplak
> Department of Aerospace Engineering,
> Mechanics, & Engineering Science
> 227 Engineering Building
> PO Box 116250
> University of Florida
> Gainesville, FL 32611-6250
> (352) 392-3983
> (352) 392-7303 FAX
> ms@aero.ufl.edu
> **********************************************
> -----Original Message-----
> From: WJ Karl 
> To: MEMS@ISI.EDU 
> Date: Saturday, August 01, 1998 8:05 PM
> Subject: Membrane deflection
>
>
> > Dear colleages,
> >
> > I am looking for an analytical solution to calculate the deflection
> > and the stress/strain behaviour of a clamped circular/square or
> > rectangular membrane. It seems there is no complete analytical
> > model for this published (especially in the rectangular case) and
> > everybody uses FEM instead.
> >
> > I am looking for a plug-in solution able to do the following (yes,
> > I am optimistic ..) :
> >
> > + any geometry/aspect ratio (rectangular case) can be calculated
> > + deflections bigger than membrane thickness are valid
> > + deflection and strain/stress values as function of position
> >
> > Any hint appreciated. Please ... don't just mention Timoshenko.
> >
> > Thanks,
> >
> > Werner.
> >  <<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<
> > W  J   K  A  R  L
> > MEMS Unit, U of Sheffield         Home 'sweet Home :
> > Mappin Street                     Cobden View Rd. 7o
> > Sheffield S1 3JD, UK              Sheffield S1o 1HQ
> > +44 (0) 114 222 5182/5890         South Yorks., UK
> > Fax (0) 114 272 6391              +44 (0) 114 266 2831
> > elp95wjk@sheffield.ac.uk
> > >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
> > What has two legs and three ears ? - A happy Tyson :-)
> >
>
>
>