Beam Shape Sensing Using Inverse Finite Element Method: Theory and Experimental Validation

Abstract

An inverse Finite Element Method (iFEM) is presented for beam and frame structures. The method is aimed at reconstructing the complete displacement field starting from in situ measurements of surface strains. A laboratory experiment is conducted on a simple cantilever beam subjected to various static loadings. Experimentally measured strains are used within a single-element iFEM model to assess the efficiency and predictive capability of the approach with respect to uncertainties and measurement errors that unavoidably affect real structures.

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Document Details

Document Type
Technical Report
Publication Date
Sep 01, 2011
Accession Number
ADA588467

Entities

People

  • Alexander Tessler
  • Marco Di Sciuva
  • Marco Gherlone
  • Massimiliano Mattone
  • Priscilla Cerracchio

Organizations

  • Polytechnic University of Turin

Tags

Communities of Interest

  • Air Platforms
  • Biomedical
  • Sensors

DTIC Thesaurus Topics

  • Aeronautics
  • Bragg Gratings
  • Coordinate Systems
  • Deflection
  • Displacement
  • Engineering
  • Equations
  • Fiber Bragg Gratings
  • Finite Element Analysis
  • Materials
  • Measurement
  • Mechanics
  • Monitoring
  • Orientation (Direction)
  • Shape
  • Strain Gages
  • Structural Health Monitoring

Fields of Study

  • Physics

Readers

  • Computational Modeling and Simulation
  • Image Processing and Computer Vision.
  • Materials Science (Mechanical Engineering).