Optimized Polynomial Virtual Fields Method for Constitutive Parameters Identification of Orthotropic Bimaterials

Table 6

Identification results of constitutive parameters of orthotropic bimaterials with speckle images.

	Reference (MPa)	Identification (MPa)		Relative error (%)	Weighted relative error (%)
	181937.10	180555.58	28.0682	−0.76	1.14
	30719.68	30448.46	10.5995	−0.88
	5907.20	4799.89	207.1620	−18.75
	5700	5678.47	5.4031	−0.38
	178229.16	178258.47	23.4412	0.02
	32976.51	31730.88	8.9408	−3.78
	8947.80	7884.06	103.7439	−11.89
	5700	5725.27	5.9455	0.44