The relation of the total structure weight of a two-dimensional ring frame to the stress distribution in each of the elements is investigated. The total weight of the two­-dimensional structures investigated were a minimum when design stresses had been attained in all elements of the structure. An expression is developed that approximates the change in stress distribution in a member when additions or deletions of materia1 are made in the member itself and its associated members. This expression is used as the basis for a rational design technique that converges to a ring frame of minimum total weight.

This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known. It has been included in the digital archive for its historical value to NPS. Not believed to be a CIVINS (Civilian Institutions) title.

http://archive.org/details/structuraldesign1094513123

Lieutenant Commander, United States Navy