1. Calculate the change in length of the bar.2. Determine the stress of member BC.A steel bar AD has a cross sectional area of 250 mm? and is loaded by a forceP:=12kN, P2=8kN, and Ps=6kN. The length of the segments are a=1.5m., b=0.60m.3. By what amount should the load P3 be increased so that the bar does not change inand c=0.90m. E=200 000 Mpa.length when the three loads are applied?P1P2P3BCa=1.5b=0.6b=0.9

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1. Calculate the change in length of the bar. 2. Determine the stress of member BC. 3. By what amount should the load P3 be increased so that the bar does not change in length when the three loads are applied?

1. Calculate the change in length of the bar. 2. Determine the stress of member BC. 3. By what amount should the load P3 be increased so that the bar does not change in length when the three loads are applied?

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter1: Tension, Compression, And Shear

Section: Chapter Questions

Problem 1.6.5P: An aluminum bar has length L = 6 ft and diameter d = 1.375 in. The stress-strain curse for the...

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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

1. Calculate the change in length of the bar.
2. Determine the stress of member BC.
A steel bar AD has a cross sectional area of 250 mm? and is loaded by a force
P:=12kN, P2=8kN, and Ps=6kN. The length of the segments are a=1.5m., b=0.60m.
3. By what amount should the load P3 be increased so that the bar does not change in
and c=0.90m. E=200 000 Mpa.
length when the three loads are applied?
P1
P2
P3
B
C
a=1.5
b=0.6
b=0.9

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