SOLVED: Solve the following sub-problems using a three-node bar element as shown in the figure. (a) Build the stiffness matrix from the strain energy, (b) calculate the equivalent nodal forces for the uniformly distributed load q = 10 kN/m using the potential of applied load, (c) solve unknown nodal displacements u and u when u is fixed, (d) calculate displacement function u(x), and (e) calculate stress xx(x) as a function of x. The three shape functions are Nx(x) = 1 - 3x 2x^2, Nx(x) = -x 2
SOLVED: Solve the following sub-problems using a three-node bar e…
May 1, 2023
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