The pin connected structure shown in the figure consists if a triangle shaped rigid bar, a cast iron bar(1) and an alluminum alloy rod(2). Bar (1) has a rectangular cross sectional area (width x thickness) of A1 = 50 * 25 mm2  and comes with material properties of E1 = 168 GPa and a1 = 10.8 * 10-6 /C . The diameter of rod (2) is d2 = 40 mm and it comes with material properties of E2 = 69 GPa and a2 = 23.6 * 10-6 /C. Both members are unstressed when the structure is assembled at 25 C. After the assembly, the temperature of the bar (1) is decreased   by 45 C while the temperature of rod (2) is kept at 25 C. Determine : - The normal stresses in the bar(1) and rod (2)  - The deflections of point B and point D - The total change (including both thermal and mechanical effects) in the width  of bar (1) if it's poisson's ratio is given as v1 = 0.32

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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The pin connected structure shown in the figure consists if a triangle shaped rigid bar, a cast iron bar(1) and an alluminum alloy rod(2). Bar (1) has a rectangular cross sectional area (width x thickness) of A1 = 50 * 25 mm2  and comes with material properties of E= 168 GPa and a1 = 10.8 * 10-6 /C . The diameter of rod (2) is d2 = 40 mm and it comes with material properties of E2 = 69 GPa and a2 = 23.6 * 10-6 /C. Both members are unstressed when the structure is assembled at 25 C. After the assembly, the temperature of the bar (1) is decreased   by 45 C while the temperature of rod (2) is kept at 25 C. Determine :

- The normal stresses in the bar(1) and rod (2) 

- The deflections of point B and point D

- The total change (including both thermal and mechanical effects) in the width  of bar (1) if it's poisson's ratio is given as v1 = 0.32 

500 mm
350 mm
(),
B
100 mm
300 mm
E (2)
400 mm
Transcribed Image Text:500 mm 350 mm (), B 100 mm 300 mm E (2) 400 mm
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