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Difference of strain energy loss and per unit increment of strain energy loss between hyperelastic model and the polynomial fitting model with the increase of stretch. (A) Strain energy loss and (B) per unit increment of strain energy loss. WDMG was defined as difference between strain energy for the ‘undamaged’ stress-stretch curve strain energy for the experimental curve, and ΔW is the loss strain energy between fitting curve and hyperelastic models.
