ch01-03 stress & strain & properties

01 Solutions 46060 5/6/10 2:43 PM Page 19
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•1–29. The curved rod has a radius r and is fixed to the
wall at B. Determine the resultant internal loadings acting
on the cross section through A which is located at an angle u
from the horizontal.
B
r
A
U
Equations of Equilibrium: For point A
R+©F x = 0; P cos u - N A = 0
P
N A = P cos u
Ans.
Q+©F y = 0; V A - P sin u = 0
V A = P sin u
Ans.
d+©M A = 0; M A - P[r(1 - cos u)] = 0
M A = Pr(1 - cos u)
Ans.
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