THE EFFECT OF TEST MACHINE EXTENSIONAL RIGIDITY ON THE INITIAL BUCKLING LOAD OF UNREINFORCED CIRCULAR CYLINDRICAL SHELLS IN AXIAL COMPRESSION

The inadequacy of small displacement theory of thin shells in explaining the buckling of circular cylindrical shells has been established. Likewise, it has become general belief that an explanation can be given by means of a nonlinear large deflection theory. The current theories lean heavily upon a plausible but arbitrarily chosen energy criterion first given by Tsien, and predict that the initial buckling load should be influenced by the testing machine stiffness. Two experiments described, statistically analyzed, and discussed by the authors in a previous paper revealed that test machine extensional rigidity does not influence the initial failing load. These results were obtained from repeated tests on a single near-perfect aluminum specimen and individual tests on many less perfect steel shells. They had R/t ratios of 313 and 226, respectively, and buckled at 77 and 45 percent of the critical load. (Author)

• Supplemental Notes:
  • Supersedes report dated December 66, AD-662348.
• Corporate Authors:

  Stanford University

  Department of Aeronautics and Astronautics
  Stanford, CA  United States  94305
• Authors:
  • Bailey, S C
  • Horton, W H
• Publication Date: 1971-11

Media Info

• Pagination: 72 p.

Subject/Index Terms

• TRT Terms: Buckling; Cylinders (Geometry); Loading and unloading; Shells (Structural forms)
• Uncontrolled Terms: Cylindrical shells
• Old TRIS Terms: Loading systems
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00034429
• Record Type: Publication
• Source Agency: National Technical Information Service
• Report/Paper Numbers: SUDAAR-298-Rev Tech Rpt
• Contract Numbers: DA-44-177-AMC-115(T)
• Files: TRIS
• Created Date: Sep 29 1972 12:00AM