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sm8 90

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PROBLEM (8.90) A closed cylindrical tank fabricated of 10-mm-thick plate is subjected to an
internal pressure of p = 6 MPa. Determine:
(a) The maximum diameter if the maximum shear stress is limited to 30 MPa.
(b) The limiting value of tensile stress, for the diameter found in part (a).
SOLUTION
σ1 − σ 2
1 pr pr
pr pd
= ( − )=
=
2
2 t
2t
4t
8t
6
8tτ
8 × 10 × 30 ×10
= 400 mm
d = max =
P
6 × 106
(a) τ max =
(b) σ 1 =
pr 6 × 106 × 200
=
= 120 MPa
t
10
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