For a plane elasticity problem, which term in the weak form of the principle of virtual displacements is affected by a change in the applied surface traction forces?

For a plane elasticity problem, which term in the weak form of the pri

1.	For a plane elasticity problem, which term in the weak form of the principle of virtual displacements is affected by a change in the applied surface traction forces?
A.	( int_{V_e} )( <sub>ij</sub> <sub>ij</sub>)dV
B.	<sub>s<sub>e</sub></sub>t <sub>i</sub> u<sub>i</sub>ds
C.	( int_{V_e} )( u <sub>i</sub> u<sub>i</sub>)dV
D.	( int_{V_e} )f<sub>i</sub> u<sub>i</sub>dV
Answer» C. ( int_{V_e} )( u <sub>i</sub> u<sub>i</sub>)dV

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For a plane elasticity problem, which term in the weak form of the principle of virtual displacements is affected by a change in the applied surface traction forces?

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