. (-, . 1.7)
(- , ).
, .
σ.
() [σ], :
(8.1)
җ ( ), ; 3 ( ), 3 = 1,1...1,5; dcp , ; z ; h , ; l , ; [σ] , /2.
f .
. 8.3 [σ] - , .
8.3. [σ]
|σ|, /2 | |||
<350 | >40 HRC | ||
( , . . 8.3) | 35...50 60...100 80... 120 15...20 20...30 25...40 | 40...70 100...140 120...200 20...35 30...60 40...70 |
. 8.3
|σ|, /2 | |||
< 350 | >40 HRC | ||
( , ) | 3...10 5...15 10...20 |
: 1. ; ; ; ; ; .
2. .
σ 5 %, , , .
(. . 8.1 8.2) l [ (8.1)].
|
|
, lp>l,5d, , .
l = l + 4...6 .
, 8.1.
(. ). -, , . (. [5]).