1. A steel bar is 50 mm in diameter and 2000 mm long. It is surrounded by a shell of cast iron 5 mm thick.Calculate the load P that will contract the combined bar a total of 0.90 mm. For modulus of elasticity useEst = 200 GPa and Ecast = 100 GPa.Answer: P = 215.60 kNBearing PlateCast Iron,t = 5 mmK-5060Steel Bard = 50 mm2. A reinforced concrete column 300 mm in diameter supports an axial compressive force of 500 kN.Determine the required area of reinforcing steel that will satisfy the following conditions: allowable stressfor steel is 120 MPa whereas for concrete, the stress is limited to 6 MPa. Use Est = 200 GPa and Econ=14 GPa.2000 mm

Given Diameter, d = 50 mm Length, L = 2000 mm Thickness, t = 0.9 mm Find Load, P

1. A steel bar is 50 mm in diameter and 2000 mm long. It is surrounded by a shell of cast iron 5 mm thick. Calculate the load P that will contract the combined bar a total of 0.90 mm. For modulus of elasticity use Est = 200 GPa and Ecast = 100 GPa. Answer: P = 215.60 kN

1. A steel bar is 50 mm in diameter and 2000 mm long. It is surrounded by a shell of cast iron 5 mm thick. Calculate the load P that will contract the combined bar a total of 0.90 mm. For modulus of elasticity use Est = 200 GPa and Ecast = 100 GPa. Answer: P = 215.60 kN

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 1.9.5P: A steel pad supporting heavy machinery rests on Four short, hollow, cast iron piers (see figure)....

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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. A steel bar is 50 mm in diameter and 2000 mm long. It is surrounded by a shell of cast iron 5 mm thick.
Calculate the load P that will contract the combined bar a total of 0.90 mm. For modulus of elasticity use
Est = 200 GPa and Ecast = 100 GPa.
Answer: P = 215.60 kN
Bearing Plate
Cast Iron,
t = 5 mm
K-50
60
Steel Bar
d = 50 mm
2. A reinforced concrete column 300 mm in diameter supports an axial compressive force of 500 kN.
Determine the required area of reinforcing steel that will satisfy the following conditions: allowable stress
for steel is 120 MPa whereas for concrete, the stress is limited to 6 MPa. Use Est = 200 GPa and Econ=
14 GPa.
2000 mm

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