Accession Number:

ADA064827

Title:

Application of Fracture Mechanics Techniques to High Temperature Crack Growth,

Descriptive Note:

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s):

Report Date:

1978-09-01

Pagination or Media Count:

19.0

Abstract:

There has been a large impetus in recent years to extend fracture mechanics concepts to characterize high temperature crack growth. Several years ago McEvily and Wells1 reviewed the application of these concepts to safe design in the creep range. Since then a large body of information on high temperature crack growth in a variety of structural alloys has been accumulated and there is a better understanding of the factors that affect crack growth and the limitations these factors impose on the characterization of crack growth by fracture mechanics concepts. Based on the available information we shall attempt to summarize here the applicability of fracture mechanics techniques to high temperature crack growth under cyclic, static, and combined loads and emphasize the conditions that could limit their applicability. Author

Subject Categories:

  • Metallurgy and Metallography
  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE