A bar of square cross-section is subjected to point loads of P1, P2, P3, and P4 as shown here.  Find the magnitude of the force P3 necessary for the equilibrium, if P1= 130 kN, P2 = 230 kN & P4 = 180 kN.  Also, determine the stresses in each section & the net change in the length of steel bar,  where the respective side of a square and lengths are d1=55mm, L1=31 cm, d2 = 40mm, L2=38 cm, d3=55 mm & L3 =30 cm.   Take E = 185 GPa. The force P3 to make it to equilibrium in kN is   The Stress in section 1 in N/mm2  is   The Stress in section 2 in N/mm2 is  The Stress in section 3 in N/mm2  is and The total change in length in x10-3 mm is

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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 A bar of square cross-section is subjected to point loads of P1, P2, P3, and P4 as shown here.  Find the magnitude of the force P3 necessary for the equilibrium, if P1= 130 kN, P2 = 230 kN & P4 = 180 kN.  Also, determine the stresses in each section & the net change in the length of steel bar,  where the respective side of a square and lengths are d1=55mm, L1=31 cm, d2 = 40mm, L2=38 cm, d3=55 mm & L3 =30 cm.   Take E = 185 GPa.

The force P3 to make it to equilibrium in kN is

 

The Stress in section 1 in N/mm2  is

 

The Stress in section 2 in N/mm2 is 

The Stress in section 3 in N/mm2  is and The total change in length in x10-3 mm is

 

dz
da
→P2
P3
di
P4
L3
L1
L2
Transcribed Image Text:dz da →P2 P3 di P4 L3 L1 L2
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