FRACTURE MECHANICS ANALYSIS OF STIFFENER TYPE CRACK ARRESTER

Previous authors have applied fracture mechanics approach to the problems of brittle crack propagation-arrest and the quantitative evaluation of the effectiveness of several types of crack arrester model. This report contains the experimental and theoretical considerations on the "stiffener-type arresters", in which crack arresting is effected by the arresting force of the stiffener to restrain the propagating crack. Analysis of the effectiveness of the stiffener-type crack arresters is made on the basis of the fracture mechanics concept. Results of large-sized brittle crack propagation test using the double tension specimens with several kinds of stiffener-type arrester are described as well as their comparison with calculated results. The stiffener-type crack arresters are considered to be of much practical importance because their configurations are similar to the stiffening members often used in many welded steel structures such as ships. But the method of quantitative estimation for the effectiveness of such crack arresters has not yet been available. Thus the authors carried out experiments and some approximate calculations to clarify the fundamental and practical aspects of the stiffener-type crack arresters.

• Corporate Authors:

  Society of Naval Architects of Japan

  23 Shiba-kotohiracho, Minato-ku
  Tokyo 135,   Japan 
• Authors:
  • Yoshiki, M
  • Kanazawa, T
  • Machida, S
• Publication Date: 1969

Media Info

• Features: References;
• Pagination: p. 63-72
• Serial:
  • Selected Papers, J of Soc of Naval Arch of Japan
  • Volume: 2
  • Publisher: Society of Naval Architects of Japan

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Maintenance; Structural analysis
• Old TRIS Terms: Crack arrest; Crack repair
• Subject Areas: Maintenance and Preservation; Marine Transportation; Materials;

Filing Info

• Accession Number: 00035161
• Record Type: Publication
• Source Agency: Society of Naval Architects of Japan
• Files: TRIS
• Created Date: Oct 27 1972 12:00AM