Accession Number : AD0656887

Title :   THERMAL STRESSES IN FINITE LENGTH SANDWICH CYLINDERS.

Descriptive Note : Technical memo.,

Corporate Author : JOHNS HOPKINS UNIV SILVER SPRING MD APPLIED PHYSICS LAB

Personal Author(s) : Rivello,Robert M.

Report Date : MAR 1967

Pagination or Media Count : 48

Abstract : A method was developed for computing the thermal stresses in a finite length sandwich cylinder with thin faces and an isotropic core. The theory, which includes the effects of longitudinal, radial, and shear rigidity of the core, treats the faces as membranes and assumes that the longitudinal and radial displacements in the core vary linearly between the face displacements. The governing equations are derived by the variational method of using the stationary value of the total potential. These equations are solved by the finite-difference method. The analysis has been programmed for the IBM 7094 computer. A brief outline of the program is given, and the input and output formats are described. The results of three check problems are given. These results indicate that the program gives reliable results for a wide range of radii and core moduli. The results of a limited parameter study to determine the effects that length, radius, and core modulus have upon the thermal stresses are given and discussed. (Author)

Descriptors :   (*THERMAL STRESSES, CYLINDRICAL BODIES), SANDWICH CONSTRUCTION, BOUNDARY VALUE PROBLEMS, COMPUTER PROGRAMS, PREDICTIONS, FLOW CHARTING, MATHEMATICAL ANALYSIS

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE