BRITTLE-DUCTILE TRANSITION AND COD CRITERION IN FRACTURE OF LOW STRENGTH STEEL

The effects of plastic constraint and temperatures on fracture initiation from a notch were investigated by using various types of notched specimens, at the temperatures ranging from room temperature to liquid temperature. The results show that, when fracture initiates by fibrous crack, the COD is almost independent of plastic constraint of the specimens or of the test temperature, while the COD at maximum load or at final fracture is largely dependent on them. When fracture initiates by cleavage crack, the critical COD also shows considerable dependence on those parameters above mentioned. This behavior of critical COD is explained by the fracture mechanism in each mode of fracture.

• Availability:
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• Corporate Authors:

  Society of Naval Architects of Japan

  23 Shiba-kotohiracho, Minato-ku
  Tokyo 135,   Japan 

  Society of Naval Architects of Japan

  15-16, Toranomon, 1-chome, Minato-ku
  Tokyo,   Japan 
• Authors:
  • Otsuka, A
  • MIYATA, T
  • Nishimura, S
  • OHASHI, M
  • Kashiwagi, Y
• Publication Date: 1974-6

Language

• Japanese

Media Info

• Features: References;
• Pagination: p. 307-317
• Serial:
  • Journal of the Society of Naval Architects of Japan
  • Volume: 135
  • ISSN: 0514-8499

Subject/Index Terms

• TRT Terms: Cracking; Fracture mechanics; Measurement
• Uncontrolled Terms: Crack propagation
• Old TRIS Terms: Crack opening measurement
• Subject Areas: Marine Transportation; Materials;

Filing Info

• Accession Number: 00071558
• Record Type: Publication
• Source Agency: Society of Naval Architects of Japan
• Files: TRIS
• Created Date: Nov 12 1974 12:00AM