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FIGURE 7.5
Extended Ritz method for a fixed-hinged beam with linearly varying loading.
Introduce the trial functions
w
=
N
u
w
w
T
L
0
EI
−
L
0
N
u
EI
N
i
u
N
u
N
u
+
N
u
N
u
δ
dx
+
k
u
R
p
on
S
p
p
z
dx
L
EI
−
N
u
L
0
N
T
u
N
u
+
N
T
u
N
u
+
w
−
=
0
(7.75)
0
R
u
p
u
on
S
u
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