Accession Number:

AD0738448

Title:

Fatigue Crack Growth in Welded Beams,

Descriptive Note:

Corporate Author:

LEHIGH UNIV BETHLEHEM PA FRITZ ENGINEERING LAB

Personal Author(s):

Report Date:

1972-01-01

Pagination or Media Count:

42.0

Abstract:

The fatigue behavior of welded steel beams is evaluated using the fracture mechanics concepts of stable crack growth. A fracture mechanics model for cracks originating from the pores in the web-to-flange fillet weld is developed. Esstimates of the stress-intensity factor are made that numerically describe the initial flaw condition. With the final crack size known, a theoretical crack-growth equation was derived from the fatigue test data of the welded beams. The derived relationship compares well with actual crack-growth measurements on a welded beam and available data from crack growth specimens. Author

Subject Categories:

  • Structural Engineering and Building Technology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE