The truss ABC shown in the figure supports horizontal load P-900 lb and a vertical load P= 300 lb. Both bars have cross-sectional area A-2.4 in.? and are made of steel with E-20 X 10° psi. (a) Determine the strain energy U, of the truss when the load P, acts alone (P, -0). (b) Determine the strain energy U2 when the load P2 acts alone (P-0). (c) Determine the strain energy U3 when both loads act simultaneously. %3D %3D 30 C B P1 900 lb P2 300 lb 40 in.-
The truss ABC shown in the figure supports horizontal load P-900 lb and a vertical load P= 300 lb. Both bars have cross-sectional area A-2.4 in.? and are made of steel with E-20 X 10° psi. (a) Determine the strain energy U, of the truss when the load P, acts alone (P, -0). (b) Determine the strain energy U2 when the load P2 acts alone (P-0). (c) Determine the strain energy U3 when both loads act simultaneously. %3D %3D 30 C B P1 900 lb P2 300 lb 40 in.-
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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![Q3
The truss ABC shown in the figure supports a
horizontal load P-900 lb and a vertical load P2= 300 lb. Both
bars have cross-sectional area A-2.4 in. and are made of steel
with E-20 X 10
psi.
(a) Determine the strain energy U, of the truss when the load P,
acts alone (P2 -0).
(b) Determine the strain energy U2 when the load P2 acts alone
(P 0).
(c) Determine the strain energy Uz when both loads act
simultaneously.
30
B P =900 lb
P2 300 lb
40 in.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fab8f9a7a-467b-4729-b84d-269470e1c4b6%2F69b4f7c9-6575-4520-9da5-c731ae39e395%2F651trkp_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Q3
The truss ABC shown in the figure supports a
horizontal load P-900 lb and a vertical load P2= 300 lb. Both
bars have cross-sectional area A-2.4 in. and are made of steel
with E-20 X 10
psi.
(a) Determine the strain energy U, of the truss when the load P,
acts alone (P2 -0).
(b) Determine the strain energy U2 when the load P2 acts alone
(P 0).
(c) Determine the strain energy Uz when both loads act
simultaneously.
30
B P =900 lb
P2 300 lb
40 in.
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