Fundamentals of Wearable Computers and Augmented Reality, 2nd Edition

576 Fundamentals of Wearable Computers and Augmented Reality

21.4.6 results

We simulate these highly nonlinear, highly anisotropic conditions using our aniso-

tropic strain-limiting approach on the nger model. The nger model is initial-

ized with its longitudinal direction aligned with the horizontal axis (e

1

), and the

nail facing up along the vertical axis (e

2

). Limits are dened as 0.95 < s

1

< 1.05

(stiff alonge

1

), 0.75 < s

2

< 1.25 (compliant along e

2

), and 0.98 < s

3

< 1.02 (almost

incompressible along e

3

). The aforementioned simulation parameters were selected

by trial and error to approximately match the behavior of a real nger. Figure ...