A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the load P is applied. Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area of 1.5 in.². Assume lengths of a = 32 in., b = 52 in., c = 24 in., L₁= 55 in., and L₂ = 100 in. The normal stress in bars (1) and (2) must be limited to 48 ksi. Determine the maximum load P that may be applied to the rigid bar.

Elements Of Electromagnetics
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ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the load P is applied.
Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area of 1.5 in.².
Assume lengths of a = 32 in., b = 52 in., c = 24 in., L₁= 55 in., and L₂ = 100 in.
The normal stress in bars (1) and (2) must be limited to 48 ksi. Determine the maximum load P that may be applied to the rigid bar.
Answer:
Pmax=
Mi
L₁
a
(1)
B
Rigid bar
b
4₂
kips
D
Transcribed Image Text:A pin-connected structure is supported and loaded as shown. Member ABCD is rigid and is horizontal before the load P is applied. Bars (1) and (2) are both made from steel [E = 30,000 ksi] and both have a cross-sectional area of 1.5 in.². Assume lengths of a = 32 in., b = 52 in., c = 24 in., L₁= 55 in., and L₂ = 100 in. The normal stress in bars (1) and (2) must be limited to 48 ksi. Determine the maximum load P that may be applied to the rigid bar. Answer: Pmax= Mi L₁ a (1) B Rigid bar b 4₂ kips D
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