Accession Number : AD0656338

Title :   DYNAMICS OF A TWO-LAYERED TIMOSHENKO-TYPE CYLINDRICAL SHELL INCLUDING THE EFFECTS OF SHEAR DEFORMATION OF THE INTERLAYER BOND,

Corporate Author : AEROSPACE CORP EL SEGUNDO CALIF LABS DIV

Personal Author(s) : Jones,J. P. ; Whittier,J. S.

Report Date : JUN 1967

Pagination or Media Count : 41

Abstract : Equations of (axially symmmetric) motion are derived for a cylindrical shell whose two layers are connected by a thin, deformable bond. Effects of shear deformation and rotatory inertia are accounted for in each of the shell layers. A thin, inertialess, interlayer bond that deforms only in shear is assumed. A nondimensional bond stiffness parameter is introduced, and the effect of bond stiffness on the dynamic behavior of the shell is investigated for the case of axial wave propagation in an infinitely long shell. The bond stiffness parameter has a profound influence on some of the wave propagation frequencies. An expression is given for a critical value of the bond stiffness parameter that separates 'stiff' and 'soft' bonds. For the limiting cases of very stiff or very soft bonds, simplified theoretical approaches give adequate accuracy; however, it appears necessary to use the theory in full for bonds of intermediate thickness. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), MECHANICAL PROPERTIES), (*CYLINDRICAL BODIES, MECHANICAL PROPERTIES), BONDING, SHEAR STRESSES, DEFORMATION, DYNAMICS, EQUATIONS OF MOTION, PROPAGATION

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE