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

Abstract

The Lightweight Innovations for Tomorrow (LIFT) project entitled, Robust Distortion Control Methods and Implementation for Construction of Lightweight Metallic Structures, sought to address distortion issues with thin-plate steel fabrication of U.S. Navy ships. Integrated computational materials engineering (ICME)-based tools and techniques were identified as the best path forward for distortion mitigation through computational simulation of the welding process. ICME tools require temperature-dependent material properties to achieve accurate computational results for distortion and residual stress. Properties of note include specific heat, thermal conductivity, coefficient of thermal expansion, elastic modulus, yield strength, and flow stress of alloys, from room temperature up to near melting point. In addition, the temperatures associated with on-heating and on-cooling phase transformations and their variation with heating rate, cooling rate, and peak temperature are also important for the prediction of stress and distortion evolution.The integrated project team (IPT) made generating pedigreed, temperature-dependent material property databases of Navy-relevant steels a key task within the LIFT project. The testing plan included some of the most common marine steels used in the construction of U.S. Naval vessels; namely, DH36, HSLA-65, HSLA-80, HSLA-100, HY-80, and HY-100. Material testing for each of the six steel grades was performed jointly by the Welding Engineering Program within the Department of Materials Science and Engineering at the Ohio State University (OSU) and the Welding, Processing, and Nondestructive Evaluation Branch at the Naval Surface Warfare Center, Carderock Division (NSWCCD). The temperature-dependent material property data was then sent to ESI for adaptation for use in their welding-based, finite-element analysis (FEA) software colloquially known as SYSWELD.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 2019
Accession Number
AD1137608

Entities

People

  • Charles R. Fisher
  • Daniel H. Bechetti
  • Jennifer K. Semple
  • Wei Zhang

Organizations

  • Naval Surface Warfare Center

Tags

Communities of Interest

  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Fabrication
  • Integrated Computational Materials Engineering
  • Materials
  • Materials Engineering
  • Materials Science
  • Measurement
  • Mechanical Properties
  • Modulus Of Elasticity
  • Neural Networks
  • Phase Transformations
  • Physical Properties
  • Reliability
  • Specific Heat
  • Stress Strain Relations
  • Stresses
  • Tensile Strength
  • Test Methods

Fields of Study

  • Materials science

Readers

  • Computational Fluid Dynamics (CFD)
  • Metallurgy