Adaptive Quasi-Linear Viscoelastic Modeling - Computational Modeling in Tissue Engineering - page 75

Fig. 11 Measured (gray circles) and predicted (black lines) ramp-loading and hold-relaxation
stress histories for a reconstituted collagen specimen during a large amplitude ramp-and-hold test
that followed a series of incremental ramp-and-hold tests [ 55 ]. a Measured stress during the
ramp-loading phase. b Measured stress during hold-relaxation phase. c Prediction of the Adaptive
QLV model for ramp stress (black curve) compared to measured stress (gray circles).
d Calibration of the plastic strain increments for the Adaptive QLV model (black curve)
compared to measured hold-relaxation stress (gray circles). e Prediction of the Generalized Fung
QLV model for ramp stress (black curve) compared to measured stress (gray circles).
f Calibration of the plastic strain increments for the Generalized Fung QLV model (black curve)
compared to measured hold-relaxation stress (gray circles)