Crashworthiness Design and Multiobjective Optimization for Hexagon Honeycomb Structure with Functionally Graded Thickness

Table 1

Accuracy assessment of different surrogate models.

Response	Surrogate model	R^2	RAAE	RMAE	RSME
PCF	RBF	0.98167	0.01644	0.16043	0.02736
	RSM	0.97917	0.01966	0.16645	0.02917
	KRG	0.97106	0.02495	0.16657	0.03672
SEA	RBF	0.97413	0.02559	0.15595	0.03699
	RSM	0.96266	0.03476	0.16767	0.04443
	KRG	0.94846	0.04335	0.18724	0.05687