A hollow steel [E = 30,000 ksi] tube (1) with an outside diameter of 3.500 in. and a wall thickness of 0.500 in. is fastened to a solid aluminum [E = 10,000 ksi] rod (2) that has a 2.000-in.-diameter and a solid 1.375-in.-diameter aluminum rod (3). The bar is loaded as shown. AssumeL1= 55 in., L2= 40 in., L3= 25 in., R= 31 kips, Q = 11 kips, and P = 27 kips. Determine (a) the change in length of steel tube (1). (b) the deflection of joint D with respect to the fixed support at A. (c) the maximum normal stress in the entire axial assembly. (2) (3) C D A B R L1 L2 L3

A hollow steel [E = 30,000 ksi] tube (1) with an outside diameter of 3.500 in. and a wall thickness of 0.500 in. is fastened to a solid aluminum [E = 10,000 ksi] rod (2) that has a 2.000-in.-diameter and a solid 1.375-in.-diameter aluminum rod (3). The bar is loaded as shown. AssumeL1= 55 in., L2= 40 in., L3= 25 in., R= 31 kips, Q = 11 kips, and P = 27 kips. Determine (a) the change in length of steel tube (1). (b) the deflection of joint D with respect to the fixed support at A. (c) the maximum normal stress in the entire axial assembly. (2) (3) C D A B R L1 L2 L3

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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Question

A hollow steel [E = 30,000 ksi] tube (1) with an outside diameter of 3.500 in. and a wall thickness of 0.500 in. is fastened to a solid
aluminum [E = 10,000 ksi] rod (2) that has a 2.000-in.-diameter and a solid 1.375-in.-diameter aluminum rod (3). The bar is loaded as
shown. Assume L1= 55 in., L2= 40 in., L3 = 25 in., R = 31 kips, Q = 11 kips, and P = 27 kips. Determine
(a) the change in length of steel tube (1).
(b) the deflection of joint D with respect to the fixed support at A.
(c) the maximum normal stress in the entire axial assembly.
R
A
B
R
L1
L2
L3
Answers:
(a) 81
i
in.
in.
An (9)
(c)
Omax
i
ksi

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