A Study of Load-Deformation and Buckling Relationships for Reticulated Shells

Abstract

The objectives of this research were to determine the theoretical and experimental load-deformation response and buckling loads of reticulated shells and to study the growth of imperfections in reticulated shell models. Two types of theoretical analyses (elastic material behavior was assumed) of reticulated shells were conducted to predict load-deformation relationships. A 'split rigidity' concept was used in which equivalent membrane and bending thicknesses were calculated. The second technique was a space frame analyses using the NASTRAN computer code. Three spherical reticulated shell models (two brass and one plastic) were fabricated and tested experimentally. Results of the study indicated that the NASTRAN code predicted the deflection patterns well and identified the final buckle locations.

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Document Details

Document Type
Technical Report
Publication Date
Apr 01, 1974
Accession Number
AD0778756

Entities

People

  • H. D. Bartel

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Weapons Technologies

DTIC Thesaurus Topics

  • Air Force
  • Bending Moments
  • Computer Programs
  • Construction
  • Creep
  • Differential Equations
  • Elastic Properties
  • Materials Testing
  • Measurement
  • Mechanical Working
  • Mechanics
  • Model Tests
  • Modulus Of Elasticity
  • Plastic Explosives
  • Plastic Properties
  • Pressure Measurement
  • Stress Strain Relations

Readers

  • Polymer Science and Engineering.
  • Structural Dynamics.

Technology Areas

  • Space