Accession Number:

ADA038828

Title:

Concepts of Fracture Toughness and Structural Integrity.

Descriptive Note:

Final rept.,

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1977-03-31

Pagination or Media Count:

37.0

Abstract:

The concept of fracture toughness is introduced. The factors that determine the toughness levels of structural steels are discussed in terms of strength and temperature transitions, strain rate dependence, and mechanical constraint. Test procedures for measuring toughness are highlighted, beginning with linear-elastic fracture mechanics and including such engineering tests as the Charpy-V, Dynamic Tear, and Drop-Weight NDT tests. However, advanced research topics involving elastic-plastic toughness, such as the J-integral, are beyond the scope of the discussion. Finally, the applicability of the various test procedures to analysis of structural integrity is discussed. Author

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE