Figure 5.

Engineering stress-stretch data for polypropylene sutures compared with theoretical predictions. The material parameter values used to obtain theoretical predictions from Equation (19) are summarized in Table 1, while the values of c = −78.5996 J/m³, m₁ = 0.85, r₁ = 1.0001, r₂ = 0.35 and γ = 0.975 were used in Equation (26).