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Determine the stiffness matrix for the bar element with end nodes and midlength node sho...

Determine the stiffness matrix for the bar element with end nodes and midlength node shown in Figure P3–13. Let axial displacement u = a1 + a2x + a3x2. (This is a higherorder element in that strain now varies linearly through the element.)

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Solutions For Problems in Chapter 3
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