JAWAD ELWIRTsunami Effects On Coastal

Structures

Outline

Project description. Work completed. Results. Work to be completed. Summary.

Project Description

Impact of a wood log hitting a concrete column in:

a- Longitudinal direction.

b- Transverse direction.

Importance Of Project

Design safer buildings, bridges, roads, etc. Safe human lives.

Work Completed So Far

Wood log is 20 ft. in length and 0.8 ft. in diameter.

Concrete column is 12 ft. in length and 1 ft. in diameter.

The model contains 10000 nodes and 9500 elements.

The wood log is traveling at 2.68 mph or 3.931 ft./sec.

The distance between the wood log and the concrete column is < 1 foot apart.

Work Complete So Far

Results

The maximum force obtained From Lsdyna 36.5 Kips.

The force calculated using experimental work kips

Results of the transverse impact were not reasonable .

Work Which Needs To Be Completed

Wood log of the transverse impact needs:

a- Addition of more solids elements.

b- Modeled with the correct physical properties .

c- The contact between the wood log and the concrete column must be face to face contact.

Gantt Chart

Introduction to high performance computing

Work on Transverse impact.

Joint Hawai‘i-Korea Workshop on Engineering of Coastal Structures for Tsunami and Coastal Storm Surge Hazards

Visit to PTWC

Work on Longitudinal impact

Refing Transvere impact

Midway progress report

Dry run for presentation

Final presentation of work

1-Apr 21-May 10-Jul 29-Aug

Summary

During this summer I will be modeling a wood log hitting a concrete column.

I was able to obtain reasonable result for the longitudinal impact.

The same physical properties used to model the longitudinal impact will be used to model the transverse impact of a wood log hitting a flexible concrete column.

Questions?