PRINCIPLES OF FRACTURE-SAFE DESIGN-PART I

The fact that a weldment is a composite of three metallurgical entities introduces complexities of fracture strength definition that demand the utmost sophistication in the understanding and the treatment of the fracture problem. The basic premise which guided this new approach was the recognition of the role of cleavage microfracture processes, which are inherent to metallurgical considerations of the problem. The metal grains at the notch root are not subjected to the same high degree of triaxial constraint to plastic flow provided by the ultrasharp natural cracks. The slow loading rate favored the development of extensive yielding prior to initiation cleavage.

• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/00432296
• Corporate Authors:

  American Welding Society

  345 East 47th Street
  New York, NY  United States  10017
• Authors:
  • Pellini, W S
• Publication Date: 1971-3

Media Info

• Pagination: p. 91S-109S
• Serial:
  • Welding Journal
  • Volume: 50
  • Issue Number: 3
  • Publisher: American Welding Society
  • ISSN: 0043-2296

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Notching (Cutting); Strength of materials; Weld strength; Welds
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Notch toughness
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00019359
• Record Type: Publication
• Source Agency: Engineering Index
• Files: TRIS
• Created Date: Nov 25 1972 12:00AM