Accession Number : AD0823567

Title :   MATRIX ANALYSIS OF BONDED DOUBLE-LAYER SHELLS OF REVOLUTION.

Descriptive Note : Technical rept.,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE AEROELASTIC AND STRUCTURES RESEARCH LAB

Personal Author(s) : Leveroni, William M.

Report Date : JUL 1967

Pagination or Media Count : 133

Abstract : The methods of finite-element matrix structural analysis are applied to the solution of arbitrary shells of revolution with double layers joined together with a soft bond. The shell is idealized as a series of conical frusta, connected at the nodal circles. Relative displacements of the upper and the lower layers in the meridional and circumferential directions are permitted, whereas normal displacements of the upper and the lower layers are assumed to be the same. The matrix-displacement method is employed by assuming a power-series-displacement pattern in the upper and in the lower layers of the conical element. This together with a Fourier expansion of displacements and loads in the circumferential angle results in an element stiffness matrix for the jth harmonic. The axisymmetric loading problem has been completely programmed. The stiffness of the bond layer is included in the calculation of the element stiffness matrix. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), COMPOSITE MATERIALS), (*BODIES OF REVOLUTION, STRUCTURAL PROPERTIES), APPROXIMATION(MATHEMATICS), CONICAL BODIES, FOURIER ANALYSIS, SERIES(MATHEMATICS), VIBRATION, BONDED JOINTS, TRANSFORMATIONS(MATHEMATICS), COMBINATORIAL ANALYSIS, STRESSES, STRAIN(MECHANICS), REENTRY VEHICLES, HARMONIC ANALYSIS, MATRICES(MATHEMATICS).

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE