Sensitivity Analysis of a CPAM Inverse Algorithm for Composite Laminates Characterization

Table 6

Four determined elastic constants for the aluminum plate.

Elastic constants	(GPa)	(GPa)		(GPa)
Reference value [12]	72.4	72.4	0.33	28.0
Deobald and Gibson’s paper [9]	69.5 (−4.0%)	69.9 (−3.5%)	0.361 (9.4%)	25.6 (−8.6%)
Hwang and Chang’s paper [8]	73.5 (1.5%)	69.1 (−4.5%)	0.34 (3%)	26 (−7.1%)
Present method	74.2 (2.5%)	73.8 (1.9%)	0.338 (2.6%)	29.6 (5.6%)