ELASTIC-PLASTIC FRACTURE MECHANICS: MARINE STRUCTURAL APPLICATIONS

This document contains the results of experimental and analytical studies of fracture in the ductile-brittle transition zone for two ship steels, EH36 and HSLA 80. Tensile, Charpy and fracture toughness test results using different strain rates are presented. Fracture toughness was quantified by the J integral and the crack tip opening displacement (CTOD). Elastic-plastic finite element analysis was combined with a local failure criterion to derive size limits for J and CTOD testing in the transition regions. Relationships between J and CTOD were explored both experimentally and analytically. A theoretical Charpy-fracture toughness relationship was used to predict CTOD transition curves for the steels. Charpy and CTOD transition temperatures were compared for a number of steels.

• Supplemental Notes:
  • Report; A Ship Structure Committee Report
• Corporate Authors:

  Texas A&M University, College Station

  College Station, TX  United States  77840

  United States Coast Guard

  2100 Second Street, SW
  Washington, DC  United States  20593
• Authors:
  • Anderson, T L
• Publication Date: 1990

Media Info

• Features: References;
• Pagination: 90 p.

Subject/Index Terms

• TRT Terms: Cracking; Dislocation (Geology); Elastoplasticity; Fracture mechanics; Fracture properties; Fracture tests; Steel
• Uncontrolled Terms: Fracture; Transitions
• Old TRIS Terms: Crack opening displacement
• Subject Areas: Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00661893
• Record Type: Publication
• Source Agency: Maritime Technical Information Facility
• Report/Paper Numbers: SSC-345/PT.2
• Contract Numbers: DTCG23-88-C-20037
• Files: TRIS
• Created Date: Jul 21 1994 12:00AM