A rubber ball (see figure) is inflated to a pressureof 65 kPa. At that pressure, the diameter of theball is 240 mm and the wall thickness is 1.25 mm. Therubber has a modulus of elasticity E = 3.7 MPa andPoisson’s ratio v = 0.48.(a) Determine the maximum stress and strain inthe ball.(b) If the strain must be limited to 0.425, find theminimum required wall thickness of the ball.

A rubber ball (see figure) is inflated to a pressureof 65 kPa. At that pressure, the diameter of theball is 240 mm and the wall thickness is 1.25 mm. Therubber has a modulus of elasticity E = 3.7 MPa andPoisson’s ratio v = 0.48.(a) Determine the maximum stress and strain inthe ball.(b) If the strain must be limited to 0.425, find theminimum required wall thickness of the ball.

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter8: Applications Of Plane Stress (pressure Vessels, Beams, And Combined Loadings)

Section: Chapter Questions

Problem 8.2.6P: A rubber ball (sec figure) is inflated to a pressure of 65 kPa. At that pressure, the diameter of...

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