Tugevusõpetuse 3. kodutöö, vene keeles
!
:
: 75x75x10
: d = 20 mm
: a =40 mm
: n = 6
: =15 mm, b1=200mm
B.
l2 l2
2 2
:
[ ] = 235/2,1= 112 MPa -
[ ] = 0,6*112 = 70 MPa -
F = 260 kN -
:
5) ()
6) b
7) l1 l2
8)
1.
, m²
N
= L [ ]=112 Mpa
AL
NL F 260103
A L = = 6
11,610-4 m2=¿ 11,6cm2
[ ] 2 [ ] 211210
AT AL
(RUUKKI) , :
AT 11,9cm 2 AL 11,6cm 2 (70 x70 x9)
:
z0=20,3
70
9
T 9 bT 70
bT 70
-
T = 9 -
AT 11,9cm 2
-
annaabi.ee 
