Ri. Stephens et al., FATIGUE DAMAGE EDITING FOR ACCELERATED DURABILITY TESTING USING STRAIN RANGE AND SWT PARAMETER CRITERIA, International journal of fatigue, 19(8-9), 1997, pp. 599-606
The objective of this research was to determine if conventional strain
range editing and a new SWT parameter editing technique can be used t
o accurately edit a variable amplitude strain history to predetermined
damage levels. A variable amplitude strain history containing 62 672
reversals was scaled to various peak strain levels and used as full le
ngth histories. These histories were then edited, using both technique
s, to the 90% and 50% damage retained levels which removed from 89 to
99.6% of the full length history. Comparisons between calculated and e
xperimental fatigue lives of smooth uniaxial normalized and through ha
rdened SAE 1045 steel specimens subjected to full length and edited hi
stories were used to evaluate the two editing techniques. Both the con
ventional strain range editing and the new SWT parameter editing techn
iques successfully edited the predicted amount of damage. (C) 1997 Els
evier Science Ltd.