F)
bu yerda
a = S
-c o s 4 5 ° =
S
—
;
y = — \
A C = S
bo M g a n lig id a n
2
G
AS = — S
(a)
2
G
(Jm umlashgan G u k q onuniga k o ‘ ra n is b iy uzayish q u yid ag ich a y o z ila d i:
AS
cr.
a
,
s, -
—
= — - u — ,
1
S
E
E
cr, = г va cr3 =
- г
e k a n lig in i e’ tib o rg a olsak, uzayish
(l +
jj
)
t
AS = ±— ^ — S
(b ) boMadi.
E
(a) va (b ) ifo d a la m in g chap to m o n la ri teng boMgani u ch u n o ‘ n g to m o n -
la r ham teng boMadi:
G = 2 ( l + / / ) '
(5 -5)
B u fo rm u la d a g i c h o ‘ z ilis h (s iq ilis h ) e la s tik lik m o d u li E v a Puasson k o
e ffits ie n ti ц ta jrib a yoM i b ila n a n iq la n a d i. B u la r o rq a li s iljis h d a g i e la s tik lik
m o d u lin i aniqlasa boMadi.
1
3
A g a r
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