A Corotational Formulation Based on Hamilton’s Principle for Geometrically Nonlinear Thin and Thick Planar Beams and Frames

Table 5

Displacement errors for pinned-fixed square diamond frame loaded in tension, h=0.1m.

	U / L		W / L
	Error Nanakorn and Vu [2]	Error present	Error Nanakorn and Vu  [2]	Error present
1	0.01632	0.00052	0.01024	0.00079
2	0.01710	0.00111	0.00799	0.00208
3	0.01511	0.00152	0.00567	0.00324
4	0.01271	0.00183	0.00399	0.00420
5	0.01045	0.00206	0.00280	0.00498
6	0.00844	0.00227	0.00192	0.00562
7	0.00668	0.00245	0.00126	0.00614
8	0.00515	0.00261	0.00075	0.00658
9	0.00381	0.00276	0.00036	0.00697
10	0.00264	0.00200	0.00003	0.00571