Answered: A steel bar of cross-sectional area 200…

A steel bar of cross-sectional area 200 mm^2 is loaded as shown in Fig. Find the change in length of the bar. Take E as 200 GPa. 50 kN 45 kN 35 kN 30 kN 200 mm 300 mm 150 mm

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter11: Columns

Section: Chapter Questions

Problem 11.3.4P: Solve the preceding problem for a W 250 × 89 steel column having a length L = 10 m. Let E = 200 GPa.

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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 steel bar of cross-sectional area 200 mm^2 is loaded as shown in Fig. Find the
change in length of the bar. Take E as 200 GPa.
50 kN
45 kN
35 kN
30 kN +
200 mm
300 mm
150 mm

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