1. Consider the following displacement function for the two-noded bar element: u = a bx 2 Is this a.


1. Consider the subjoined demolition duty for the two-noded bar element:

u = a  bx2

Is this a sound demolition duty? Discuss why or why not.

2. For each of the bar elements shown in Figure P3–15, evaluate the global x-y cacophony matrix.