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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.-

Structural Analysis
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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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.
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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