Analysis of bow crushing in ship collision
Name
47046428-MIT.pdf
Description
Full printable version
Size
12.89 MB
Format
Adobe PDF
Checksum (MD5)
98026af65174d9e101774edd41874ff0
Author(s)
Kim, Ji Young, 1968-
Advisor(s)
Tomasz Wierzbicki.
Date Issued
2000
Publisher
Massachusetts Institute of Technology
Abstract
Collision of ships with oil tankers poses, next to grounding, one of the most serious environmental threats at sea. In many previous analyses of the collision problem, the bow of the impacting ship was considered rigid. The objective of the present research is to include the finite strength of the bow in the overall collision simulation. The emphasis will be placed on typical raked shapes because some work already has been reported in the past on bulbous bows. The main structural members will include side shell and the deck. Transverse and longitudinal stiffeners will be taken into account by means of a smearing technique. A structural model is developed by identifying localized zones of plastic deformations from photographs of damaged ships. Then, the contributions of the membrane and bending resistance is assessed and a simple computational model is developed. The solution includes determination of the force-indentation relationship, a number of folds and a total amount of damage for a given speed of a ship. Five scale model tests were run and the force-deflection characteristics were recorded. A good correlation was obtained between the analytical solution and experimental results.
Description
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Ocean Engineering, 2000.
Includes bibliographical references (leaves 108-110).
Subjects
Ocean Engineering.
MIT Department
Massachusetts Institute of Technology. Department of Ocean Engineering
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