Plastic Buckling of Simply Supported Compressed Plates

Abstract

An investigation was made to ascertain the validity of various theories for the plastic buckling of compressed simply supported plates by means of local-instability tests of drawn square tubes of l4B-T6 aluminum alloy. The results obtained were in excellent agreement with Stowell's unified theory for the plastic buckling of columns and plates (NACA TN No. l5456). This agreement, in addition to that previously obtained for columns and flanges, is considered a satisfactory experimental verification of this theory which is based on a deformation theory of plasticity. Two other plastic buckling theories of the deformation type and the empirical secant-modulus method also gave a close correlation with the test results, but a plastic buckling theory of the flow type showed a lack of agreement.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1949
Accession Number
ADA380678

Entities

People

  • George J. Heimerl
  • Richard A. Pride

Organizations

  • National Aeronautics and Space Administration

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Aeronautical Laboratories
  • Agreements
  • Air Force
  • Air Force Facilities
  • Alloys
  • Aluminum
  • Aluminum Alloys
  • Buckling
  • Compression
  • Compressive Strength
  • Displacement
  • Materials
  • Modulus Of Elasticity
  • Plastic Properties
  • Stress Strain Relations
  • Stresses
  • Thickness

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Structural Dynamics.