Analytical Strength Formulas for Ship Hulls
Abstract
The subject of this report is a proposed new surface ship hull concept consisting of a double skin that wraps around the bottom, sides and main deck. The two skins are connected by plates normal to the surfaces, forming a cellular structure similar to a cardboard box. Modeling the ship hull as a circular cylindrical orthotropic shell surrounding an elastic core, we are able to obtain analytical formulas for estimating the principal stresses in such a structure, subjected to end bending moments and lateral pressure. These formulas indicate that the stiffness of the proposed bulkheads in the proposed design could be reduced by a factor of 10 without incurring significant secondary stresses in the double hull.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 21, 1992
- Accession Number
- ADA248251
Entities
People
- Donald A. Danielson
Organizations
- Naval Postgraduate School