An Investigation to Determine the Applicability of High Yield Steel in the Construction of Transversely Framed Ships

摘要

The report contains the results of a series of rational structural analyses of Mariner midship sections in which high yield steel was used. A series of analyses was necessary because frame spacing was varied from 30 in. to 60 in. The ultimate goal of the study was to indicate a method of reducing the cost of ship structure; either by simplifying the structure or by significantly reducing the weight. The cost parameters used were weight per foot of midship section, weight of weld metal deposited per foot of midship length, number of structural parts per foot, and length of joints per foot of midship length. The latter two remained unchanged despite the use of high yield steel, while there was a significant reduction in the weight of the midship section per foot of length and the weight of weld metal deposited per foot of midship length. The reduction increased substantially with increasing frame spacing, indicating that in transversely framed ships the desirability of high yield steel tends to increase with frame spacing. (Author)