F.D.+E. Steels Crack Propagation Charts

Note!! : Charts and information are offered with No Warranty Whatsoever.
They are intended for research purposes and not for design.
Authors: F.A.Conle and Wanhua Liang
Created: Oct. 2021, last update Jan.2022

Background (2Mb)


    1. Enter:
#Lower R= #Upper R=
( Range between Lower and Upper is limited to 0.3 R "units" for +ve R )

Pick one:
#Chart Only #with References #with Details of Refs. #

(Note: the green lines in the output plots are from ASME
equations, while the Kth values from Hasegawa et.al.
see "Backgound" above Ref.[6] )