A round aluminum [E = 70000 MPa] rod must be designed for the following specifications: (a) The rod must be 2.28 m long. (b) The rod must carry a tensile load of 718 kN. (c) The normal stress in the rod must not exceed 160 MPa. (d) The rod must not elongate more than 5 mm. Determine the minimum diameter that can be used for the aluminum rod.

A round aluminum [E = 70000 MPa] rod must be designed for the following specifications: (a) The rod must be 2.28 m long. (b) The rod must carry a tensile load of 718 kN. (c) The normal stress in the rod must not exceed 160 MPa. (d) The rod must not elongate more than 5 mm. Determine the minimum diameter that can be used for the aluminum rod.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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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

I am not sure what I am doing wrong. Please help, thanks!

A round aluminum [E = 70000 MPa] rod must be designed for the following specifications:
(a) The rod must be 2.28 m long.
(b) The rod must carry a tensile load of 718 kN.
(c) The normal stress in the rod must not exceed 160 MPa.
(d) The rod must not elongate more than 5 mm.
Determine the minimum diameter that can be used for the aluminum rod.
Answer:
Minimum diameter = i 75.588
mm

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