In the equation Ue=\(\frac{1}{2}\)2qT(2∏ ∫ BTDBrdA)q the quantity inside the paranthesis is _____
a) Axisymmentric
b) Strain displacement relationships
c) Stiffness matrix
d) Symmetric matrix
Answer: c
Explanation: In the finite element method for the numerical solution of elliptic partial differential equations, the stiffness matrix represents the system of linear equations that must be solved in order to ascertain an approximate solution to the differential equation.
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