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

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.

A Transmission History, courtesy of John Deere
A Bracket History, courtesy of G.M.
A Suspension History, courtesy of Ford

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.:

S. Neal, L.W. Zachary, C.P. Burger, "Three-Dimensional Stress Analysis of the SAE Keyhole Fatigue Specimen," SAE paper 780104, 1978
F.A. Conle: PhD thesis tests on G40.21-50A Steel Axial Samples
F.A. Conle: PhD thesis tests on Boron Steel Axial Samples
F.A.Conle, F.D.E. KeyHole Project Simulations, SAE paper 2020-01-0191

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

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