The effect of stiffener smearing in a ship-like box structure subjected to an underwater explosion
By: Keith A. Beiter
Publisher: Naval Postgraduate School; Available from National Technical Information Service
Published: 1998
Place of publication: Monterey, Calif; Springfield, Va
Language: eng
Number of pages: 59
Description: Shock trials for naval vessels are a requirement for each new class of surface ships in the U.S. Navy. With      understanding the technology of underwater shock analysis and considering the rising costs of conducting actual      shock tests, computer simulation of shock trials is becoming more and more attractive. Unfortunately, finite      element models can be quite large and require sufficient amounts of computer memory and time to run a shock      analysis. This thesis investigates the effects of reducing the element size of a ship-like box model subjected to      an underwater explosion. Known as smearing, this process combines the density and stiffness properties of the      removed elements into the remaining material of the model. Positive results from computer simulation could      greatly affect the manner in which shock trials are conducted with future ship classes.
Notes: Thesis advisor(s): Young S. Shin.

"June 1998."

Thesis (M.S. in Mechanical Engineering) Naval Postgraduate School, June 1998.

Includes bibliographical references (p. 57)

Approved for public release; distribution unlimited.

Also available online.

Mode of access: World Wide Web.

System requirements: Adobe Acrobat Reader 7.0.

US Navy (USN) author.

dk/dk cc:9116 10/05/98