Damped Response of Visco-Elastic Thick Cylinders of Infinite Extent
Report Number: WL-TR-91-3078 Volume III, p. HBB-1 thru HBB-10
Author(s): Hamidzadeh, H.R., Nunez, D.J., Chandler, D.E.
Corporate Author(s): Department of Mechanical Engineering, South Dakota State University
Date of Publication: 1991-08
Pages: 10
DoD Task:
Identifier: This paper is part of a conference proceedings. See ADA241313
Abstract:
Harmonic responses of viscoelastic thick circular cylinders of infinite extent, subjected to harmonic radial and tangential boundary stresses are considered. In development of an analytical solution two dimensional elastodynamic theory is employed and the viscoelastic material for the medium is allowed by assuming complex elastic moduli. The solution provides stresses and displacements at any point in the medium in terms of boundary stresses. The resonant frequencies for different circumferential fle xural (lobar) modes and their corresponding thickness modes are computed and satisfactorily compared with an available solution. The present solution is not limited to thin shells, and it equally treats thick cylinders with any values of hysteretic damping . Also , several design charts for estimation of resonant frequencies for a wide range of thickness ratio are developed .
Author(s): Hamidzadeh, H.R., Nunez, D.J., Chandler, D.E.
Corporate Author(s): Department of Mechanical Engineering, South Dakota State University
Date of Publication: 1991-08
Pages: 10
DoD Task:
Identifier: This paper is part of a conference proceedings. See ADA241313
Abstract:
Harmonic responses of viscoelastic thick circular cylinders of infinite extent, subjected to harmonic radial and tangential boundary stresses are considered. In development of an analytical solution two dimensional elastodynamic theory is employed and the viscoelastic material for the medium is allowed by assuming complex elastic moduli. The solution provides stresses and displacements at any point in the medium in terms of boundary stresses. The resonant frequencies for different circumferential fle xural (lobar) modes and their corresponding thickness modes are computed and satisfactorily compared with an available solution. The present solution is not limited to thin shells, and it equally treats thick cylinders with any values of hysteretic damping . Also , several design charts for estimation of resonant frequencies for a wide range of thickness ratio are developed .
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This report is part of the following conference:
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Proceedings of Damping '91: 13-15 February 1991 San Diego, California (GCA-1 through JCB-17)
WL-TR-91-3078 Volume III