Accession Number : AD0646709

Title :   STABILITY OF CYLINDRICAL SHELLS UNDER MOVING LOADS BY THE DIRECT METHOD OF LIAPUNOV.

Descriptive Note : Technical rept.,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF THE AEROSPACE AND MECHANICAL ENGINEERING SCIENCES

Personal Author(s) : Hegemier,G. A.

Report Date : JAN 1967

Pagination or Media Count : 34

Abstract : The stability of a long, thin, elastic circular cylindrical shell subjected to axial compression and an axisymmetric load moving with constant velocity along the shell axis is studied. With the aid of the direct method of Liapunov, and employing a nonlinear Donnell-type shell theory, sufficient conditions for local stability of the axisymmetric response are established in a functional space whose metric is defined in an average sense. Numerical results, which are presented for the case of a moving decayed step load, reveal that the sufficient conditions for stability developed here and the sufficient conditions for instability obtained in a previous paper lead to the actual stability transition boundary. (Author)

Descriptors :   (*CYLINDRICAL BODIES, STABILITY), (*SHELLS(STRUCTURAL FORMS), STABILITY), LOADS(FORCES), MOTION, ELASTIC SHELLS, BOUNDARY LAYER TRANSITION

Subject Categories : Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE