7 metoda deformacijskog rada
DESCRIPTION
oTPORNOST mATERIJALATRANSCRIPT
-
7.
-
7.
147
1: A , B . E F, a D M. I, . C E.
: 3 . C , , X, . 3
0= iX 0A =+ XX , 0= iY 0BA =+ FFY ,
0A =M 022 =++ MXaFaFa B
. :
XX A = ,
aFXFB 22
M+= ,
a
FXYA 22M++= .
. z1, z2, z3 z4 .
-
148
+++=a
s
a
s
a
s
a
s dzMIEdzM
IEdzM
IEdzM
IEU
04
24
2
03
23
02
22
01
21 2
12
12
12
1
s1, s2, s3 s4 ,
111 22z
aFXzYM As
++== M ,
22222 )(22)( zFza
aFXzFzaYM As +
++=+= M ,
33 zXM s =M , M=4sM . e C
+
+
+=
=
==
===a a
sXs
sXs
as
Xs
as
XsX
C
dzX
MM
IEdz
XM
MIE
dzX
MM
IEdz
XM
MIEX
Ux
2
0 04
4043
303
02
202
01
101
0
11
11
11 z
XM s =
)( 22 za
XM s +=
33 z
XM s =
04 =
XM s
Cx
+= FaEI
axC 21
3103 M
F . , F,
+
+
+=
=a a
ss
ss
as
s
as
sE
dzX
MM
IEdz
XM
MIE
dzF
MM
IEdz
FM
MIEF
Uy
2
0 04
443
33
02
22
01
11
11
11
.
11
21 z
FM s =
, )(21
22 za
FM s =
, 03 =
FM s , 04 =
F
M s
+=a
FEIayE
M
41
613 .
-
7.
149
2 je A D M, F. AB 2I, I. . .
:
. F, Ka
FUyE = ,
U . X 0,
0==
XE X
Ux .
4 . zi, i = 1..4 .
+++=a
s
a
s
a
s
a
s dzMIEdzM
IEdzM
IEdzM
IEU
2
04
24
03
23
02
22
01
21 4
12
12
12
1 ,
si , i = 1...4 , M=1sM , M=2sM , 33 zFM s = , M+= aFzXM s 44 .
-
150
+
+
+=
=a
ss
as
s
as
s
as
sE
dzF
MM
IE
dzF
MM
IEdz
FM
MIE
dzF
MM
IEFUy
2
04
44
03
33
02
22
01
11
21
111
+
++
==
==
==a
sXs
as
Xs
as
Xs
as
XsE
dzF
MMIE
dzF
MMIE
dzF
MMIE
dzX
MMIEX
Ux
2
04
404
03
303
02
202
01
101
211
11
01 =
FM s , 02 =
F
M s , 33 zFM s = , a
FM s = 4 ,
01 =
XM s , 02 =
X
M s , 03 =
XM s , 44 zX
M s = .
yE xE
+=+= aFEIadzaMaF
IEdzzF
IEy
aa
EM
34)(
211 32
04
03
23
== FaEIadzzaFM
IEx
a
EM32
044)(2
1
3 3 , , B . q C F. D 2 I, I. C.
-
7.
151
: ,
0=+= FXX Ai ,
0=+= QFYY BAi , 0
232 == QaFaFaM BA ,
Q , qaQ = . , .
FX A = , aqFYA 4
121 += ,
aqFFB 43
21 += .
C F, C Ka ,
FUxC = ,
U .
3 . zi, i = 1..3 .
++=a
s
a
s
a
s dzMIEdzM
IEdzM
IEU
2
03
23
2
02
22
01
21 2
1221
21 ,
si , i = 1...3 , 2111 2
121 zqFzM qs == ,
-
152
aqzaFzM s )22
2(
22
222 += ,
333 ]43
21[ zaqFzFM Bs +== .
Fq Fq = q z1. C
+
+=
=a
ss
as
s
as
sC dzFM
MIE
dzF
MM
IEdz
FM
MIEF
Ux2
03
33
2
02
22
01
11
1211
01 =
FM s , 22 2
2 zF
M s = , 33 2
1 zF
M s = ,
xC
+=
++
+= aqFIE
aaqFIE
aaqFIE
axC 1219
32
127
31 333
4: A, B . C F. AD 2I, I. C.
: 3
-
7.
153
X i = 0 X A = 0 , Yi = 0 Y F FA B+ = 0 , MA = 0 02 =+ ABA FaYa M 4 ,
. FB. . z1, z2 z3 .
++=a
s
a
s
a
s dzMIEdzM
IEdzM
IEU
2
03
23
02
22
2
01
21 4
12
12
1
s1, s2 s3 , 11 zFM s = 22 zFM Bs = aFaFM Bs 23 +=
je
=+
+=
aB
ss
a
B
ss
a
B
ss
Bdz
FM
MIE
dzF
MM
IEdz
FM
MIEF
U 2
03
33
02
22
2
01
11 02
111
01 =
B
s
FM 22 zF
M
B
s = a
FM
B
s = 3
F z dz F a F a a dzBa
B
a
22
20
30
212
2 0 + + =( ) FB = -3F/2 .
Y F F FA B= + = 52 MA A Ba Y a F F a= + = 2 12 . C F . , , F,
+
+=
=a
ss
as
s
as
sC dzFM
MIE
dzF
MM
IEdz
FM
MIEF
Uy2
03
33
02
22
2
01
11 2
111
-
154
11 z
FM s = 02 =
F
M s aF
M s 23 =
C
IEaFFF
IEa
dzaaFaFIE
dzzFIEF
Uy
B
a
B
a
BC
3112
320
2)2(2
11
33
2
03
2
01
21
=
+=
++==
5: ACDB A , B . C F. AC CD I, DB 2 I. C.
: 4 . 3
0= iX 0A =X ,
0= iY 0BA =+ FFY , 0A =M 02 =++ ABFaFa M
,
FB. . z1, z2 z3 .
++=a
s
a
s
a
s dzMIEdzM
IEdzM
IEU
03
23
02
22
2
01
21 2
12
122
1
s1, s2 s3 , o45cos11 zFM Bs = aFM Bs =2 333 )( zFzaFM Bs +=
je
-
7.
155
=+
+=
aB
ss
a
B
ss
a
B
ss
Bdz
FM
MIE
dzF
MM
IEdz
FM
MIEF
U
03
33
02
22
2
01
11 0
1121
11
22 z
FM
B
s = a
FM
B
s = 2 33 zaF
M
B
s +=
[ ] =++++ a Ba Ba B dzzazFzaFdzaFdzzF 20
33330
22
2
01
21 0)()(22
1
FB = 5F/22 .
FFFY2217
BA =+= aFFaFa BA 1162 ==M .
C F . , F,
+
+=
=a
ss
as
s
as
sC dzFM
MIE
dzF
MM
IEdz
FM
MIEF
Uy0
33
30
22
2
2
01
11
1121 .
01 =
FM s , 02 =
F
M s , 33 zFM s = ,
C
[ ]
IEaF
FFIE
a
FFIE
adzzzFzaFIEF
Uy Ba
BC
13219
31
225
65
)31
65()()(1
33
3
03333
=
+=
+=+==
6: A , B . C F. I, AD 2I. C.
-
156
: 4 . 3
0= iX 0A =X , 0= iY 0BA =+ FFY ,
0A =M 02 =++ ABFaFa M
, FB. . z1, z2, z3 z4 .
+++=a
s
a
s
a
s
a
s dzMIEdzM
IEdzM
IEdzM
IEU
2
04
24
03
23
02
22
01
21 4
12
12
12
1
s1, s2, s3 s4 , 11 zFM s = , aFM s =2 , )( 333 zaFzFM Bs += , aFaFM Bs 24 = .
je
=
++
+
=
a a
B
ss
B
ss
a
B
ss
a
B
ss
B
dzF
MM
IEdz
FM
MIE
dzF
MM
IEdz
FM
MIEF
U
0
2
04
443
33
02
22
01
11
02
11
11
01 =
B
s
FM 02 =
B
s
FM 33 zF
M
B
s = a
FM
B
s = 4
[ ] [ ] 0221)(
2
04
03333 =++
a
B
a
B dzaaFaFdzzzaFzF ,
02)2(21)
32(
33
323
=++ aFFaaaFaF BB FB = 17F/8 .
-
7.
157
FFFY89
BA =+= aFFaFa BA 812 ==M .
C F . , F,
+
++
==
as
s
as
s
as
s
as
sC dzFM
MIE
dzF
MM
IEdz
FM
MIE
dzF
MM
IEFUy
2
04
44
03
33
02
22
01
11 2
1111
.
11 z
FM s = , a
FM s = 2 , )( 33 zaF
M s += , a
FM s 24 =
C
[ ][ ]
+++==
a
B
a
B
aa
C
dzaaFaFIE
dzzazaFzFIE
dzaFIE
dzzFIEF
Uy
2
04
03333
02
2
01
21
222
1
)()(111
=
=
++++++= FFEIaFF
EIaFFFFFF
EIay BBBC 8
176
17323
617
32342)
31
2121()
31
21(
31 333
EIFayC
3
4879=
.
7 ACDB A B . D F. I. D.
: 3 0= iX 0A =++ FXX B ,
-
158
0= iY 0BA =+YY , 0A =M 02 =+ FaXaYa BB ,
4 , . XA ,
AB XFX = , ABB XFFXY 2
1)(21 == ,
AA XFY 21+= .
. z1, z2 z3 .
++=a
s
a
s
a
s dzMIEdzM
IEdzM
IEU
2
03
23
2
02
22
01
21 2
12
12
1
s1, s2 s3 , 11 zXM As = , aXzYM AAs += 22 , 33 zXM Bs = .
F XA ,
11 zXM As = , aXzXFM AAs ++= 22 )21( , 33 )( zXFM As += .
je
=+
+=
aA
ss
a
A
ss
a
A
ss
Adz
XM
MIE
dzXM
MIE
dzXM
MIEX
U 2
03
33
2
02
22
01
11 0
111 .
11 z
XM
A
s = , az
XM
A
s +=
22 , 33 zX
M
A
s = .
-
7.
159
=++
+++ a Aa
AA
a
A dzzXFdzzaaXzXFdzzX2
03
23
2
0222
01
21 0)()()2
1(
FX A 2318= .
FX B 235= , FYA 23
14= , FYB 2314= .
D
+
+=
=a
ss
as
s
as
sD dzFM
MIE
dzF
MM
IEdz
FM
MIEF
Ux2
03
33
2
02
22
01
11
111 .
01 =
FM s , 22 zX
M
A
s = , 33 zF
M s = .
++
++=a
A
a
AAD dzzXFIEdzzaXzXF
IEx
2
03
23
2
0222 )(
1)()21(1 .
IEaXFx AD
3
)23
16( += IE
aFIE
aFxD33
768,369260 == .
8: A , B C o. M C. I a. CD C.
: 4 . 3
0= iX 0A =+ CFX , (1) 0= iY 0BA =+ FY , (2)
0A =M 0=+ MCB FaFa (3)
-
160
, FC. ,
CA FX = ,
aFF CB
M= ,
aFFY CBA
M+== .
. z1, z2 z3 .
++=a
s
a
s
a
s dzMIEdzM
IEdzM
IEU
03
23
02
22
01
21 2
12
12
1
s1, s2 s3 ,
M=1sM 22 zFM Cs =M 333 zaFzYM CAs
+== M je
=+
+=
aC
ss
a
C
ss
a
C
ss
Cdz
FM
MIE
dzF
MM
IEdz
FM
MIEF
U
03
33
02
22
01
11 0
111
01 =
C
s
FM 22 zF
M
C
s = 33 zF
M
C
s =
[ ] 0)()(0
330
222 =
++ a
C
a
C dzzaFdzzzF MM
a
FCM
45= .
aX M
45
A = , aFBM
41= ,
aY M
41
A = .
-
7.
161
C M. , M,
+
+=
=a
ss
as
s
as
sC dzM
MIE
dzM
MIE
dzM
MIE
U
03
33
02
22
01
11
111MMMM
.
11 =M
sM , 12 =M
sM , azM s 33 =
M
,
[ ]=
++=
+++= MMM
MMM
31
32
)(111
03
23
022
01
CC
a
C
a
C
a
C
FaFaEIa
dzaz
aF
EIdzzF
EIdz
EI
IEa
EIaaF
EIa
CM
MMM2431
45
65
37
65
37 =
=
=