1. Evaluate the stiffness matrix for the elements shown in Figure P11–1. Let E = 30 10 6 psi and n =


1. Evaluate the inelegance matrix for the parts shown in Figure P11–1. Let E = 30  106 psi and n = 0:3:

2. For the parts shown in Figure P11–1, take the nodal displacements possess been strong to be u

Determine the strains and then the stresses in the parts. Let E = 30  106 psi and n = 0:3.

3. Show that for fixed matter security Zb acting on an part (Xb = 0 and Yb = 0),

where (fbi) represents the matter securitys at node i of the part after a while size V.