.


:




:

































 

 

 

 


30




" "

3- Ի

 

1. . .

2. () .

3. .

,

 

P= 100 , a = 1

 

F = 10 2, dT = - 20 K-1 ,

 
 


α = 12.10-5 K-1, = 1.105

 

.

 

 

.0.. ..

Ȼ

---------------------------------------------------------------------------------------------------------------------

 

1

 
 


" "

3- Ի

 

1. .

2. .

.

3. .

,

L ,

 

= 10 , h = 5 , b = 10 L = 1 .

 

 

.0.. ..

 

-------------------------------------------------------------------------------

 

 

Ȼ

---------------------------------------------------------------------------------------------------------------------

 

2

 
 


" "

3- Ի

 

 

1.

.

2. ..

3. .

,

L ,

 

= 10 , h = 5 , b = 10 L = 1 .

 

.0.. ..

Ȼ

---------------------------------------------------------------------------------------------------------------------

 

3

" "

3- Ի

 

1. .

2.

.

4.

P
.

,

 

q = P/a; M = Pa.

 

.0.. ..

 

 

---------------------------------------------------------------------------------------------------------------------

Ȼ

---------------------------------------------------------------------------------------------------------------------

4

" "

3- Ի

 

 

1.

.

2. . .

.

.

3. .

γ.

,

 

γ = 0,1 /3, D = 2 , = 4 , h = 2

 

 

 

.0.. ..

 

Ȼ

---------------------------------------------------------------------------------------------------------------------

 

5

" "

3- Ի

 

 

1. .

.

2.

2F

.

3. .

,

α, P = 2qa.

 

 

.0.. ..

 

 

---------------------------------------------------------------------------------------------------------------------

Ȼ

---------------------------------------------------------------------------------------------------------------------

6

" "

3- Ի

 

1.

..

2.

2F

.

3. .

,

α, P = 2qa.

 

 

.0.. ..

 

Ȼ

---------------------------------------------------------------------------------------------------------------------

 

7

" "

3- Ի

 
 

 

 


1.

. .

.

2. .

3. .

n

, E = 105 ,

 

σmax = 200 , σmin = 100 , α = 30 .

 

 

.0.. ..

 

---------------------------------------------------------------------------------------------------------------------

 

 

Ȼ

---------------------------------------------------------------------------------------------------------------------

8

" "

3- Ի

 

 

1. . .

.

2.

.

4. .

,

G.

 

 

.0.. ..

Ȼ

---------------------------------------------------------------------------------------------------------------------

9

" "

3- Ի

 

 

1. .

.

2.

.

3. .

.

δ

.

σx, σy, σz

εx, εy εz ,

.

 

 

.0.. ..

 

--------------------------------------------------------------------------------

 

Ȼ

---------------------------------------------------------------------------------------------------------------------

 





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