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(a) Experimental and simulated force–displacement curves obtained after determining the material parameters by using the combined identification method with two back-stress terms: by using (a1) minimum (a2) middle and (a3) maximum values from Table 2 as an initial guess. (b) Experimental and predicted uniaxial stress–strain hysteresis by using (b1) Min (b2) Mid and (b3) Max identified material parameters from Table 3.
