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Title
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Damped Response of Visco-Elastic Thick Cylinders of Infinite Extent
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Report Number
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WL-TR-91-3078 Volume III, p. HBB-1 thru HBB-10
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Creator
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Hamidzadeh, H.R.
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Nunez, D.J.
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Chandler, D.E.
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Corporate Author
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Department of Mechanical Engineering, South Dakota State University
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Date
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1991
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Date Issued
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1991-08
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Extent
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10
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Identifier
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ADA241313
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Format
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1 online resource
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Abstract
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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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Description
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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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Distribution Classification
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1
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Distribution Conflict
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No
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DTIC Record Exists
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No
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Illinois Tech Related
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No
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Photo Quality
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Not Needed
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Report Availability
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Full text available
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Type
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article