Table 2.

Error in the inner pressure for different tube thickness T. U(r_i) and P_numerical are radial displacement of the inner surface and inner pressure in the middle section of the tube, respectively. The relative error is ${\epsilon }_p=\frac{|P_{\text{numerical}}-P_{\text{analytic}}|}{P_{\text{analytic}}}$

T	Nr × Nθ	N	U(ri)	Pnumerical	Panalytic	εp
0.2	4 × 128	40	0.07989	399.4	403.14	9.28e-3
0.5	10 × 128	40	0.07410	699.9	710.78	1.53e-2
1	6 × 64 + 4 × 128	20	0.07313	961.4	972.30	1.12e-2