Table 2: Calculated probabilities of HnF as a function of the ratio t/τ of time to the MTTF and safety factor S=F/G , which is the ratio of the HCF F to the level G of the MWL.

S= F G

 

1.0

 

2.0

 

3.0

 

4.0

 

5.0

 

6.0

 

8.0

 

10.0

 

100.0

t/τ

Probabilities of human non-failure

0

1.0000

1.0000

1.0000

1.0000

1.0000

1.0000

1.0000

1.0000

1.0000

0.5

0.8320

0.9346

0.9754

0.9909

0.9966

0.9988

0.9998

1.0000

1.0000

1.0

0.6922

0.8734

0.9514

0.9819

0.9933

0.9975

0.9997

1.0000

1.0000

2.0

0.4791

0.7629

0.9052

0.9640

0.9866

0.9951

0.9993

0.9999

1.0000

5.0

0.1589

0.5083

0.7796

0.9125

0.9455

0.9877

0.9983

0.9998

1.0000

10.0

0.0253

0.2584

0.6078

0.8326

0.9348

0.9755

0.9967

0.9995

1.0000

100.0

1.05E-16

1.33E-6

6.88E-3

0.1602

0.5098

0.7805

0.9670

0.9955

1.0000

1000.0

1.7E-160

1.68E-59

2.39E-22

1.111E-8

1.185E-3

0.0838

0.7150

0.9556

1.0000