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. Author manuscript; available in PMC: 2023 Aug 11.
Published in final edited form as: Acta Biomater. 2023 Mar 23;162:240–253. doi: 10.1016/j.actbio.2023.03.022

Fig. 5.

Fig. 5.

(A) Equibiaxial stress relaxation curves. (B) Non-equibiaxial stress relaxation curves where the circles denote tests where circumferential:longitudinal stretch is 30%:15% while the squares denote the test where the stretch ratios are the reverse. (C) Mean peak and terminal stress values. Terminal stress is measured at t = 600 s. (D) Relaxation time and (E) relaxation modulus calculated as the slope of the stress-time curve at the start of relaxation. Two-way ANOVA with repeated measures was used to perform statistical analysis in (C). Paired t-tests were performed to determine the statistical significance between the circumferential and longitudinal directions in (D) and (E). Stress calculated is 1st-PK stress. The filled and hollow markers indicate male and female specimens, respectively.