Fatigue Testing of Maglev-Hybrid Box Beam

Abstract

The project concerned fatigue testing and numerical evaluation of a steel/composite hybrid girder. The girder was previously built under collaboration between Maglev Inc. and Lehigh University. The girder was instrumented with strain gages and LVDTs to monitor strains and deflections. A test setup with bottom supports and towers for mounting two or three hydraulic actuators was installed in the ATLSS test lab. The girder was fatigue tested for over 300,000 cycles at loads up to 120% of design load. There was extensive cracking in the steel structure, but only minor damage in the composite panels towards the very end of the test.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Mar 02, 2009
Accession Number
ADA498352

Entities

People

  • Joachim L. Grenestedt
  • Richard Sause

Organizations

  • Lehigh University

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Actuators
  • Adhesives
  • Box Beams
  • Composite Materials
  • Cracks
  • Fatigue Tests (Mechanics)
  • Finite Element Analysis
  • Gages
  • Glass Fibers
  • Hydraulic Actuators
  • Materials
  • Numerical Analysis
  • Sandwich Panels
  • Ship Hulls
  • Ships
  • Strain Gages
  • Test And Evaluation

Readers

  • Robotics and Automation.
  • Structural Dynamics.
  • Structural Health Monitoring of Composite Structures.