Sorry maybe i have included not enough information. Esteel = 200 GPa , Coefficient of thermal expansionsteel = 12 * 10^-6 , yieldstell =345 MPa ; Ealuminum = 73.1 GPa , Coefficient of thermal expansionaluminum 23*10^-6 ,yieldaluminum= 414 MPa PROBLEM 3. The rigid beam is fixed to the top of the three posts made of A992 steel and 2014-T6 aluminum having the unloaded lengths shown. The temperature is T1 = 20°C when no loadis applied to the beam. Steel posts have a diameter of 20 mm and aluminum post has adiameter of 30 mm. Determine the maximum distributed load density (w) the posts cansupport without causing it buckle and yield if the temperature is raised to T2 = 80°C. Posts arefixed at their base.400 mm400 mmSteelwAluminum500 mm%3D

Answered: PROBLEM 3. The rigid beam is fixed to…

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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Sorry maybe i have included not enough information.

E_steel = 200 GPa ,
Coefficient of thermal expansion_steel= 12 * 10^-6 ,
yield_stell=345 MPa ;
E_aluminum= 73.1 GPa ,
Coefficient of thermal expansion_aluminum23*10^-6 ,
yield_aluminum= 414 MPa

PROBLEM 3. The rigid beam is fixed to the top of the three posts made of A992 steel and 2014-
T6 aluminum having the unloaded lengths shown. The temperature is T1 = 20°C when no load
is applied to the beam. Steel posts have a diameter of 20 mm and aluminum post has a
diameter of 30 mm. Determine the maximum distributed load density (w) the posts can
support without causing it buckle and yield if the temperature is raised to T2 = 80°C. Posts are
fixed at their base.
400 mm
400 mm
Steel
w
Aluminum
500 mm
%3D

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