Temperature-Dependent Material Property Databases for Marine Steels—Part 1: DH36

Abstract

Integrated computational materials engineering (ICME)-based tools and techniques have been identified as the best path forward for distortion mitigation in thin-plate steel construction at shipyards. ICME tools require temperature-dependent material properties to achieve accurate computational results for distortion and residual stress. However, the required temperature-dependent material property databases of U.S. Navy-relevant steels are not available in the literature. Therefore, as part of a Lightweight Innovations for Tomorrow program, a comprehensive testing plan for some of the most common marine steels used in the construction of US naval vessels was completed. This testing plan included DH36, HSLA-65, HSLA-80, HSLA-100, HY-80, and HY-100 steel with a nominal thickness of 4.76 mm (3/16-in.). This report is part of a seven-part series detailing the pedigreed steel data. The first six reports will report the material properties for each of the individual steel grades, whereas the final report will compare and contrast the measured steel properties across all six steels. This report will focus specifically on the data associated with DH36 steel.