Concept explainers
The truss structure shown in the figure supports the force F. The finite element method is used to analyze this structure using three truss elements as shown. The area of cross- section (for all elements)
a. Determine the stiffness matrix of element 2.
b. It is determined after solving the final equations that the displacement components of node 1 are:
c. What is the change in length of element 2?
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