Consider a thick-walled cylinder with inner radius a and outer radius b under internal pressure Po. The material is elastic-perfectly-plastic, with yield stress yo. Assume the Tresca yield criterion holds. (a) What is the stress distribution in the initial elastic state and in the subsequent elastic- plastic state as the pressure is gradually raised? (b) What is the radius of the plastic zone as a function of the internal pressure? (c) What is the limiting pressure at which the entire cylinder is plastically deforming? (d) Simplify your result for a thin-walled tube.

Elements Of Electromagnetics
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Consider a thick-walled cylinder with inner radius a and outer radius b under internal pressure
Po. The material is elastic-perfectly-plastic, with yield stress yo. Assume the Tresca yield
criterion holds.
(a) What is the stress distribution in the initial elastic state and in the subsequent elastic-
plastic state as the pressure is gradually raised?
(b) What is the radius of the plastic zone as a function of the internal pressure?
(c) What is the limiting pressure at which the entire cylinder is plastically deforming?
(d) Simplify your result for a thin-walled tube.
Transcribed Image Text:Consider a thick-walled cylinder with inner radius a and outer radius b under internal pressure Po. The material is elastic-perfectly-plastic, with yield stress yo. Assume the Tresca yield criterion holds. (a) What is the stress distribution in the initial elastic state and in the subsequent elastic- plastic state as the pressure is gradually raised? (b) What is the radius of the plastic zone as a function of the internal pressure? (c) What is the limiting pressure at which the entire cylinder is plastically deforming? (d) Simplify your result for a thin-walled tube.
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