Photoelastic Investigation of Deck Structure
Abstract
The photoelastic method has been applied to the determination of stresses in celluloid models of a deck containing fifteen openings symmetrically arranged about the center line. The highest stresses are found in a narrow strip of deck plating lying along the center line of the ship between the lateral groups of openings. The strength of this deck strip is estimated to represent 2% of the entire deck strength, so that failure in it can not greatly affect the remainder of the deck It is pointed out that this very weak strip of deck plating is constrained to follow any deformations which may occur in the surrounding deck and that only by reducing these deformations can the stresses along the center line be reduced. In addition of bulkheads and coaming plated effects such reductions in extension with resultant decreased in longitudinal tension along the center line of about 25%. The discontinuities in structures presented by the juncture of bulkheads with the base plate result in concentrations of stress not observed when no bulkheads were present.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 29, 1937
- Accession Number
- AD1154754
Entities
People
- D. H. Andrews
- Edward O. Hulburt
- H. B. Maris
- J. A. Sanderson
Organizations
- United States Naval Research Laboratory