A strain gage is installed in the longitudinal direction on the surfaces of an aluminium beverage can (see figure).The radius-to-thickness ratrio of the can is 200.When the lid of the can is popped open,the strain changes by e0 =187 * 10.6.(a) What was the internalpressure/* in the can?(Assume E =10 *106 psi and v = 0J3.)(b) What is the change in strain in the radial direction when the lid is opened? PopyPROBLEM 8.3-7Soda

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Engineering

Mechanical Engineering

Popy PROBLEM 8.3-7 Soda

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.22P

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Question

A strain gage is installed in the longitudinal direction on the surfaces of an aluminium beverage can (see figure).The radius-to-thickness ratrio of the can is 200.When the lid of the can is popped open,the strain changes by e₀ =187 * 10.6.

(a) What was the internalpressure/* in the can?(Assume E =10 *10⁶ psi and v = 0J3.)

(b) What is the change in strain in the radial direction when the lid is opened?

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