Page 131 - Shigley's Mechanical Engineering Design

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106 Mechanical Engineering Design
y

A
10 in
z
B
200 lbf 10 in
C
1000 lbf 10 in
D
x
100 lbf
500 lbf
(a)
y
A
800 lbf
10 in
z 1600 lbf in
200 lbf B
10 in
1600 lbf in
1200 lbf
C 10 in
600 lbf D
x
400 lbf
400 lbf
(b)
y 1200 lbf
600 lbf
A B C D x
B C D
A x
800 lbf 400 lbf
200 lbf 400 lbf z 8000
4000
M z M y
(lbf in) (lbf in) 4000
2000
x O x
O
(d)
(c)
+
Location: at B (x = 10 )
8000 lbf in
8246 lbf in
F
Max. compression
and shear
2000 lbf in
–1 8000
= tan = 76°
E 2000
Max. tension
and shear
Figure 3–24 (e)