Problem 6.2: The aluminum rod ABC (E=10.1x10° psi) (Figure 6.19), which consists of two cylindrical portions AB and BC, is to be replaced with a cylindrical steel rod DE (E=29x10 psi) of the same overall length. Determine the minimum required diameter d of the steel rod if its vertical deformation is not to exceed the deformation of the aluminum rod under the same load and if the allowable stress in the steel rod is not to exceed 24 ksi.

Problem 6.2: The aluminum rod ABC (E=10.1x10° psi) (Figure 6.19), which consists of two cylindrical portions AB and BC, is to be replaced with a cylindrical steel rod DE (E=29x10 psi) of the same overall length. Determine the minimum required diameter d of the steel rod if its vertical deformation is not to exceed the deformation of the aluminum rod under the same load and if the allowable stress in the steel rod is not to exceed 24 ksi.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

British Gravitational Bg System Of Units

Measuring is the comparison of a particular physical quantity with its reference value. A unit is a fixed physical quantity. The length is a physical quantity. A physical quantity is the product of a unit and the numerical value we need to compare with. 

Question

Problem 6.2: The aluminum rod ABC (E=10.1x10
psi) (Figure 6.19), which consists of two cylindrical
portions AB and BC, is to be replaced with a
cylindrical steel rod DE (E=29x10° psi) of the same
overall length. Determine the minimum required
diameter d of the steel rod if its vertical deformation
28 kips
28 kips
D
12 in.
15 in.
is not to exceed the deformation of the aluminum rod
under the same load and if the allowable stress in the
B
steel rod is not to exceed 24 ksi.
–2.25 in.
ed
18 in.
E
Figure 6.19

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