Answered: Cast iron tube =3 mm Plastic bar Sp=…

Cast iron tube =3 mm Plastic bar Sp= 193 mm Se 200 mm Force P on plastic bar - Inner plastic bar Outer cast iron bar PROBLEM 1.7-4

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 8.3.3P: A scuba t a n k (see fig ure) i s bci ng d e signed fo r an internal pressure of 2640 psi with a...

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Concept explainers

Axial Load

When a bar of the uniform cross-section is acted by a load, such that the load acts along the longitudinal axis of the bar, such kinds of loadings are known as axial loadings. In general terms, a load is an external force acting on a component. An axial load acts perpendicular to the geometric cross-section of the component. Based on the direction of the application of the load, an axial load can be tensile or compressive. The analysis of bodies under the action of axial loads is generally studied under the branch of mechanics, known as statics.

Question

A square plastic bar (length LP,side dimension sp=193 mm) is inserted inside a hollow.square cast iron tube (length Le

= 400 mm. side sc=200 mm,and thickness tc=3 mm).

(A)What is the required initial length L,of the plastic bar so that.ilcn it is compressed by some force the final length of bar and tube are equal to length L and,at the same time, the gap beten plastic bar and cast iron tube is closed?

(B) Compare initial and final volumes for the plastic bar. Assume that E = 170 GP E,= 2.1GPa.v = 0.3.and = 0.4.

Cast iron tube
=3 mm
Plastic bar
Sp= 193 mm
Se 200 mm
Force P on
plastic bar
- Inner plastic
bar
Outer cast iron
bar
PROBLEM 1.7-4

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