Testing of Michell-like Trusses

Abstract

In support of projects to examine the behavior of Michell-like trusses conducted by Lieutenant Colonel Curtis L Decker, working for the US Army Research Laboratorys (ARL) Materials Response and Design Branch (MRDB), and on topological optimization conducted by Andrew T Gaynor (ARL/MRDB), this report describes the fixture used to test these trusses, along with procedures used to enhance the performance of the fixture and recommendations to further improve the fixture. Difficulties encountered in the testing and procedures used to perform the testing are discussed. The use of digital image correlation and resistive-type strain gauges to measure strain in the trusses is detailed, along with discussion on why the results from the two techniques vary.

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Document Details

Document Type
Technical Report
Publication Date
Sep 13, 2018
Accession Number
AD1059805

Entities

People

  • David M. Gray
  • Robert P. Kaste

Organizations

  • United States Army Research Laboratory

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Attachment
  • Buckling
  • Cells
  • Construction
  • Coordinate Systems
  • Design Criteria
  • Digital Images
  • Fabrication
  • Gages
  • Images
  • Joints
  • Load Cells
  • Materials
  • Military Research
  • Strain Gages
  • Structural Steel
  • Three Dimensional

Fields of Study

  • Physics

Readers

  • Mechanical Engineering/Mechanics of Materials.
  • Military History
  • Software Engineering