dadN1: Calculation of fatigue crack growth for delta-K using...

In ShinsukeSakai0321/FFS:

Usage

dadN1(R=0.1,n=3.07,dK=17.68)

Arguments

R	stress ratio
n	exponent of delta-K
dK	Range of stress intensity factor

See Also

Raju_newman command for the calculation of stress intensity factor

Examples

# Kouzou Kenzensei Hyouka Handbook
#Kyouritsu Syuppan P.369 Subject No2.2
k1 <- Raju_Newman()/1e6
k2 <- Raju_Newman(P=0.01e6)/1e6
dkA <- k1$KA-k2$KA
dkB <- k1$KB-k2$KB
dadN1(dK=dkA)
dadN1(dK=dkB)
#candidate solution
> dadN1(dK=dkA)
[1] 2.92088e-05
> dadN1(dK=dkB)
[1] 5.459835e-05

# Kouzou Kenzensei Hyouka Handbook
#Kyouritsu Syuppan P.369 Subject No2.3
6+dadN1(dK=dkA)*100
6*2+dadN1(dK=dkB)*2*100
#candidate solution
> 6+dadN1(dK=dkA)*100
[1] 6.002921
> 6*2+dadN1(dK=dkB)*2*100
[1] 12.01092

ShinsukeSakai0321/FFS documentation built on May 20, 2019, 5:09 p.m.