A steel bar 40 mm x 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2 m and E= 200 GPa, the elongation of the bar will be (a) 1.25 mm (b) 2.70 mm (c) 4.05 mm (d) 5.40 mm e) none of these

A steel bar 40 mm x 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2 m and E= 200 GPa, the elongation of the bar will be (a) 1.25 mm (b) 2.70 mm (c) 4.05 mm (d) 5.40 mm e) none of these

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.3.21P: A slightly tapered bar AB of solid circular crass section and length L is supported at end B and...

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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

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A steel bar 40 mm x 40 mm square cross-section is subjected to an axial compressive load of 200 kN. If the length of the bar is 2 m and E= 200 GPa, the elongation of the

bar will be

(a) 1.25 mm

(b) 2.70 mm

(d) 5.40 mm

e) none of these

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