Question: For the four-noded bar element in Figure P10-4, show that the Jacobian determinate is |[J]| = L / 2. Also determine the shape functions N

For the four-noded bar element in Figure P10-4, show that the Jacobian determinate is |[J]| = L / 2. Also determine the shape functions N₁ - N₄ and the strain/displacement matrix [B]. Assume u = α₁ + α₂s + α₃s² + α₄s³.

Figure P10-4

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