stan 1 upał: tl=60stC. gl=g =34,63*10-3 N/m mm2, cr2=?
Given
cr2 -
2 o2 ^
a -g2 24-P-<t22
2 ,2
= ol ——--— - (t2 - tl)
24-p-crl2 P
o2 :=Find(a2) ct2 = 45.001
f:=
a2g2
8ct2
f = 8.657
ysl := 12.8
yd :=ysl -f
yd =4.143
Strona 9 z 9