Table 1.

Accuracy of the elements of the deformation gradient matrix in the local coordinate system.

	shear elements						normal elements
	F12	F13	F21	F23	F31	F32	F11-1	F22-1.	F33-1
Variation in Magnitude	0.006	0.113	0.320	0.013	0.179	0.068	0.381	0.192	0.152
RMS Error	0.000	0.026	0.107	0.013	0.008	0.002	0.001	0.027	0.026
Relative RMS	3.7%	23.1%	33.5%	98.2%	4.6%	2.3%	0.3%	13.9%	17.1%

The calculation was done on the simulated data for the maximum contraction (See appendix B).