Determine the nodal forces for (1) the quadratic varying pressure loading shown in Figure P6-12(a) and (2) the sinusoidal varying pressure loading shown in Figure P6-12(b) by the work equivalence method [use the surface integral expression given by Eq. (6.3.7)]. Assume the element thickness to be t.

Figure P6-10

Figure P6-11

Figure P6-12

Transcribed Image Text:

У (10, 25) (20, 20) 13 2 (20, 10) (10, 10) 2 (5, 5) (20, 5) х (b) (a) y (15, 15) (5, 15) (25, 15) (5, 5) (25, 5) (15, 5) х (c) (d) Po 3 Po P. Pa = PoL (a) (b)