Accession Number : AD0674073

Title :   LOW BUCKLING LOADS OF AXIALLY COMPRESSED CONICAL SHELLS,

Corporate Author : TECHNION - ISRAEL INST OF TECH HAIFA DEPT OF AERONAUTICAL ENGINEERING

Personal Author(s) : Baruch,Menahem ; Harari,Ovadia ; Singer,Josef

Report Date : JAN 1968

Pagination or Media Count : 60

Abstract : The stability of simply supported conical shells under axial compression is investigated for 4 different sets of in-plane boundary conditions with a linear Donnell type theory. The first two stability equations are solved by the assumed displacement, while the third is solved by a Galerkin procedure. The boundary conditions are satisfied with 4 unknown coefficients in the expressions for u and v. Both circumferential and axial restraints are found to be of primary importance. Buckling loads about half the 'classical' ones are obtained for all but the stiffest simple supports SS4 (v = u = o). The low buckling loads for 'classical' simple supports SS3 are confirmed by two different methods of analysis, a closed form solution in Hankel functions and a finite difference solution. Except for short shells, the effects do not depend on the length of the shell. Buckling under combined axial compression and external or internal pressure is studied and interaction curves were calculated for the 4 sets of in-plane boundary conditions. (Author)

Descriptors :   (*SHELLS(STRUCTURAL FORMS), LOADS(FORCES)), BUCKLING, CONICAL BODIES, BOUNDARY VALUE PROBLEMS, STABILITY, DIFFERENTIAL EQUATIONS, SPECIAL FUNCTIONS(MATHEMATICAL), DIFFERENCE EQUATIONS

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE