SMALL SCALE GRILLAGE TESTS,

Abstract

To investigate the possibilities of making smaller scale steel grillage models, two simple models were constructed in a high yield steel using the dip transfer gas shielded electrode method of welding. The models might be regarded as 1/3 or 1/4 scale, the thickness of material ranging from 0.15 to 0.27 in. A high standard of manufacture was achieved, with only very small welding distortions. The models were loaded elastically over the stiffeners, and into the elasto-plastic range over individual plate panels. Finally, the grillages were loaded to plastic collapse. For loadings over the stiffeners in both the elastic and plastic ranges, the results generally confirmed earlier work. For loadings applied to a plate panel, some surprisingly high local stiffener bending stresses were observed, which were attributed to very small effective breadths around the loaded panel, in the range 10 to 25% of the stiffener spacing. (Author)

Document Details

Document Type
Technical Report
Publication Date
Feb 01, 1966
Accession Number
AD0634227

Entities

People

  • J. Clarkson

Tags

DTIC Thesaurus Topics

  • Bending Stress
  • Collapse
  • Distortion
  • Electrodes
  • Materials
  • Physical Properties
  • Standards
  • Stresses
  • Thickness
  • Two-Dimensional Materials

Fields of Study

  • Materials science

Readers

  • Fluid Dynamics.
  • Mechanical Engineering/Mechanics of Materials.
  • Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

  • Space