FD+E SAE Keyhole Specimen Test Load Histories
and Crack Initiation and Propagation Results

The histories below were created originally in the early 1970s
and provided by Prof. Dave DuQuesnay, RMC Kingston Ont., and
posted on this web site. F.A.C. Oct 16, 1999. Last update Jan2021

Reference: Lee Tucker, Stephen Bussa, "The SAE Cumulative
Fatigue Damage Test Program," SAE Paper 750038, 1975.

Plots of Crack Propagation observed in tests (3Mb pdf)

Spread Sheet of Crack Propagation observed in tests
( Libreoffice format can be imported to Microsoft )

Tensile and Crack Initiation Data

Other Refs.: