The Effects of the Treatment of the Periodic Boundary Condition in TRIAINA Codes with a Pressure Tube Creep Problem

Table 1

Average pitch of triangle elements.

	Normal	2.5% creep	5.0% creep
Linear Ftn.
PBC	0.173 cm	0.172 cm	0.173 cm
RBC	0.173 cm	0.172 cm	0.173 cm
Quadratic Ftn.
PBC	0.346 cm	0.344 cm	0.345 cm
RBC	0.347 cm	0.343 cm	0.344 cm