Three steel rods (E=200 GPa) support a 36-kN load P. Each of the rods AB and CD has a 200-mm² cross-sectional area and rod EF has a 625- mm² cross-sectional area. Determine the (a) the change in length of rod EF, (b) the stress in each rod.

Three steel rods (E=200 GPa) support a 36-kN load P. Each of the rods AB and CD has a 200-mm² cross-sectional area and rod EF has a 625- mm² cross-sectional area. Determine the (a) the change in length of rod EF, (b) the stress in each rod.

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 2.3.10P: A two-story building has steel columns AB in the first floor and BC in the second floor, as shown in...

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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

2)
Three steel rods (E=200 GPa) support a 36-kN load P. Each of the rods AB and
CD has a 200-mm² cross-sectional area and rod EF has a 625- mm² cross-sectional
area. Determine the (a) the change in length of rod EF, (b) the stress in each rod.
C
500 mm
B
E
400 mm

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