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2. The steppedbar shownin the figure below is subjectedto a distributedline force Assuminglinearshapefunctions usetheprinciple of minimumpotentialenergyandFEM to a) determineall thenodaldisplacementandb) thereaction L. Discretizethestructure appropriatelywith two

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2. The steppedbar shownin the figure below is subjectedto a distributedline force Assuminglinearshapefunctions usetheprinciple of minimumpotentialenergyandFEM to a) determineall thenodaldisplacementandb) thereaction L. Discretizethestructure appropriatelywith two 2-nodebar elementsAssume E = 270 GPa the crosssection areasof the two portionsshownare1.5x10 - mz, 10-5 m2. Further, 0 X

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