26
Chapter 1
10
8
o
u
n
t
42
0
30000
50000
70000
90000
Cycles
110000
Figure 1.7 Three combined tests (A, B, C) of radiator data [4.26].
Solid WeibulI curve
fl= 1.71144-4-0.486265 0 = 46,903 zk 9671 ~ = 18,390+6004.5 cycles
Dotted Gaussian curve
2AeC = 60,329 cycles
SA~c = 25, 145 cycles.
Eq. (1.30) then Eq. (1.31)
25,145
< //i
< 60,329 + 2.060-60,329-2.060
25 - -
58,257 < ]A i _< 62,401 cycles
and
25,145,~’~
25,145~/~
6.376
3.622
20,109 < oi _< 35,399 cycles
25, 145
25
(1.92)
(1.93)
REFERENCES
1.1. Abernethy RB et al.: Weihull Analysis Handbook AFWAL-TR-2079, NTIS
(AD-A143100) There is a 2nd edition from Gulf Publishing, 1983.
Chapter 1
10
8
o
u
n
t
42
0
30000
50000
70000
90000
Cycles
110000
Figure 1.7 Three combined tests (A, B, C) of radiator data [4.26].
Solid WeibulI curve
fl= 1.71144-4-0.486265 0 = 46,903 zk 9671 ~ = 18,390+6004.5 cycles
Dotted Gaussian curve
2AeC = 60,329 cycles
SA~c = 25, 145 cycles.
Eq. (1.30) then Eq. (1.31)
25,145
< //i
< 60,329 + 2.060-60,329-2.060
25 - -
58,257 < ]A i _< 62,401 cycles
and
25,145,~’~
25,145~/~
6.376
3.622
20,109 < oi _< 35,399 cycles
25, 145
25
(1.92)
(1.93)
REFERENCES
1.1. Abernethy RB et al.: Weihull Analysis Handbook AFWAL-TR-2079, NTIS
(AD-A143100) There is a 2nd edition from Gulf Publishing, 1983.