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Progress Report. Stephanie Soon University of Hawaii at Manoa [email protected] 07/06/12. Numerical methods. Pole: 40 ft long, 0.826 ft diameter Modeled as elastic material Column: 1 ft 2 cross-sectional area Rigid 2 mph. Simple open-channel flow models

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Progress report

Progress Report

Stephanie Soon

University of Hawaii at Manoa

[email protected]

07/06/12


Numerical methods
Numerical methods

  • Pole: 40 ft long, 0.826 ft diameter

    • Modeled as elastic material

  • Column: 1 ft2 cross-sectional area

    • Rigid

  • 2 mph



Results to date
Results to Date

  • Timestep: 0.1 ms

  • 10,400 elements

  • Max force: 11 kips


Results to date1
Results to Date

  • Timestep: 0.1 ms

  • 18,800 elements

  • Max force: 14.5 kips



Intended future work
Intended Future Work

  • Examine discrepancy between results from LS-Dyna and given equations

  • Create a mesh for circular pole in water

  • Expand to full-scale



Expected delays problems
Expected Delays/Problems

  • Using LS-Dyna wood properties

  • Making mesh for circular pole in water

  • Making the pole flow with the fluid


Summary
Summary

  • In-air transverse impact

    • Results do not correlate well with given equation

  • Simple open-channel flow models

    • Needs further refining

  • Will likely encounter a number of difficulties


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