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Progress Report

Progress Report. Stephanie Soon University of Hawaii at Manoa ssoon@hawaii.edu 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

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  1. Progress Report Stephanie Soon University of Hawaii at Manoa ssoon@hawaii.edu 07/06/12

  2. Numerical methods • Pole: 40 ft long, 0.826 ft diameter • Modeled as elastic material • Column: 1 ft2 cross-sectional area • Rigid • 2 mph

  3. Simple open-channel flow models • Incorporated pole and column

  4. Results to Date • Timestep: 0.1 ms • 10,400 elements • Max force: 11 kips

  5. Results to Date • Timestep: 0.1 ms • 18,800 elements • Max force: 14.5 kips

  6. Results to Date

  7. 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

  8. Gantt Diagram

  9. Expected Delays/Problems • Using LS-Dyna wood properties • Making mesh for circular pole in water • Making the pole flow with the fluid

  10. 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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