CALCS PROC039
THIN WEBS, LOCAL BUCKLING

NOTATION

Fcr1stress, critical,edges fixed
Fcr2edges s.s.
bbreadth, plate
tthickness, plate

APPLICATION

Thin webs of generally rectangular form

OUTPUT

from prog

SEE ALSO

PROC035

THEORY

Roark5, Page427

GUIDANCE

guidance notes

INPUT FORMAT

LET Nm=:Nk=:b=:t=:fd=:PROC039

EXAMPLE

Call Statement

LET Nm=1:Nk=1:b=35:t=.6:fc=2.0:PROC039

Output

PROC039 LOCAL BUCKLING, THIN WEBS, Rev 021095
Fcr1= 5.73*E(Nm)*(t/b)^2/(1-v(Nm)^2)= 3.83
Fcr2= 3.29*E(Nm)*(t/b)^2/(1-v(Nm)^2)= 2.199
UF= ABS(fd)/(Kcr(Nk)*Fcr1)= 0.4878
UF= ABS(fd)/(Kcr(Nk)*Fcr2)= 0.8496
END039