_______________________________________________________________________
PROBLEM (8.91) A closed cylindrical vessel constructed of a thin plate is l.2 m in diameter and
subjected to an external pressure of 1 MPa. Calculate:
(a) The wall thickness t if the maximum allowable shear stress is set at 20 MPa.
(b) Tthe corresponding maximum principal stress.
21 2
σ
σ
== tpr
12
max 24
p
r
t
σ
σ
τ
−
==
(a) 6
6
max
1(10 )600 7.5
44(2010)
pr
tm
τ
== =
×m
(b) 6
11(10 )600 80
7.5
pr
M
Pa
t
σ
== =
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