MTS Series 793 Application - Manual (Page 322)

MTS MultiPurpose TestWare®
Fatigue Process
Data Acquisition Process Descriptions 322
MinMax histogram The MinMax histogram identifies the rainflow-counted cycles by the identified
maximum/minimum value. The following example illustrates the method for
creating a MinMax histogram.
When using the MinMax method, all the histogram counts must fall in the upper-
right triangle of the histogram because the maximum value must be greater than
the minimum value. The closed cycles and their associated minimum and
maximum are:
• BC—Minimum of 1; Maximum of 2
• DE—Minimum of 1; Maximum of 4
• FG—Minimum of –2; Maximum of –1
• AD—Minimum of –4; Maximum of 4
-3
-2
-1
0
1
2
3
4
-3 -2 -1 0 1 2 3
Maximum ( ε)
Minimum (
ε)
-4 4
-4
BC DE
FG
AD
A
B
C
E
F
G
A
Strain Time History
Time
-3 -2 -1 0 1 2 3 -4
Strain (ε)
D
D
4