Figure 5.

Second Piola–Kirchhoff stress versus time (a) and effective damage versus time (b) responses of the homogeneous uniaxial tensile loading–unloading–reloading test example using the neo-Hookean material parameters (table 2) with linear damage for varying values of the healing rate parameter k (values given in days⁻¹) and irreversible stiffness loss parameter ξ.