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Table 2 Sensitivity to initial set of parameters: specimen 2

From: Enhanced features of a constitutive equation gap identification method for heterogeneous elastoplastic behaviours

Parameters \(\varvec{E}\) (GPa) \(\varvec{v}\) \(\varvec{k}\) (GPa) \(\varvec{\sigma }_{\mathrm{0}}\) (MPa)
Initial value 1 1.00E−09 1.00E−09 1.00E−09 1.00E−09
Identified values 209.74 0.3002 1.032 300.10
Number of iterations 7 7 8 8
Initial value 2 155.00 0.15 0.50 150.00
Identified values 209.77 0.3003 1.031 300.10
Number of iterations 7 7 6 6
Initial value 3 420.00 0.60 2.00 600.00
Identified values 209.84 0.3003 1.033 300.09
Number of iterations 8 8 6 6