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Strength Of Materials Miscellaneous

Strength Of Materials

  1. A gas is stored in a cylindrical tank of inner radius 7 m and wall thickness 50 mm. The gauge pressure of the gas is 2 MPa. The maximum shear stress (in MPa) in the wall is
    1. 35
    2. 70
    3. 140
    4. 280
Correct Option: C

σc =
pd
=
2 × 14
= 280 MPa
2t2 × 0.05

σl =
pd
=
2 × 14
= 140 MPa
4t4 × 0.05

Maximum shear stress,
τmax =
σ1 - σ2
=
σc - σl
= 70 MPa
22

Note: This stress τmax is the maximum in-plane shear stress.
Absolute τmax will be
σc
= 140 Mpa
2



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