Consider a spherical pressure vessel of Stephanie Redfern @The Mechanics

Question 21 / 40: Consider a spherical pressure vessel of diameter 100 cm and wall thickness 0.5 cm. If the internal pressure (gauge) is 7 atm, then which of the following represents the tensile stress in the spherical wall?

A 35.5 MPa

B 35.5 kPa

C 71 MPa

D 71 x 10 ⁵ Pa

E 71 GPa

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Explanation:

The tangential tensile stress in a spherical pressure vessel can be computed from

pr/2b, where p is the internal gauge pressure, r is the sphere radius, and b is the wall thickness. You may refer to the reading for section 2.3.2.

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Mechanics I ME102

Author:

Stephanie Redfern

The Saylor Foundation

USA

Access: Public Instant Grading

Attribution: Stephanie Redfern, Ranjeet (Ron) Agarwala, and Dr. Steve Gibbs. Mechanics I. The Saylor Academy 2014, http://www.saylor.org/courses/me102/

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