A critical evaluation of the heavy section steel technology program. Part one

Part one covers the Program until the time of the testing of the first of the intermediate test vessels, i.e.; the period from 1967 till summer 1972. This is the preparatory period when the Program readied itself for the main task which is expected to provide an extensive base for the extrapolation of failure hypothesis to full-size vessels. The accomplishments of the Program during the first five years of its existence falls under two main categories. (A) Testing and characterization of thick-section steel. (B) Proposing and developing the Equivalent Energy Method leading to a new fracture toughness parameter which has been given the symbol Ksub(lcd). (Auth.)