Accession Number : AD0667941

Title :   ELASTIC AND MAXIMUM STRENGTH ANALYSES OF POST-BUCKLED RECTANGULAR PLATES BASED UPON MODIFIED VERSIONS OF REISSNER'S VARIATIONAL PRINCIPLE,

Corporate Author : STANFORD UNIV CALIF DEPT OF AERONAUTICS AND ASTRONAUTICS

Personal Author(s) : Mayers,J. ; Nelson,E.

Report Date : APR 1966

Pagination or Media Count : 70

Abstract : The postbuckling and maximum strength analyses of uniformly shortened, simply supported rectangular plates with straight unloaded edges are obtained by employing Reissner's variational principle in conjunction with a deformation theory of plasticity. The results are compared to (1) experimental data for a rectangular plate in which the test conditions basically reflect the boundary conditions specified in the present analyses, and (2) a potential energy solution that correlates well with experiment, but in which the effect of waveform change on the average stress carried by the plate is accounted for only in a gross manner and the effect of small local unloading is neglected. Good agreement with experiment establishes confidence in the new approach and indicates that the simplified technique utilized in the potential energy solution to compensate for waveform changes may be employed for engineering purposes. (Author)

Descriptors :   (*PANELS, STRUCTURAL PROPERTIES), BUCKLING, ELASTIC PROPERTIES, NUMERICAL ANALYSIS, BOUNDARY VALUE PROBLEMS, METAL PLATES, PLASTIC PROPERTIES, DEFORMATION, THEORY, OPTIMIZATION

Subject Categories : Structural Engineering and Building Technology
      Mechanics

Distribution Statement : APPROVED FOR PUBLIC RELEASE