Sensitivity Analysis of a CPAM Inverse Algorithm for Composite Laminates Characterization

Table 8

Elastic constants determined for the aluminum specimens.

Elastic constants	(GPa)	(GPa)		(GPa)
Reference value [12]	69	69	0.33	25.94
Hwang and Chang [8]
A1	71.4 (3.5%)	64.9 (−5.9%)	0.28 (−15%)	24.67 (−4.9%)
	68.8 (−0.3%)		0.32 (−3%)
A2	63.2 (−8.5%)	70.5 (2.2%)	0.365 (10.6%)	25.1 (−3.2%)
	67 (−2.9%)		0.32 (−3%)
CPAM method
A1	70.8 (2.6%)	70.7 (2.5%)	0.36 (9%)	26.9 (3.7%)
	69.14 (0.2%)		0.34 (3%)
A2	73.6 (6.7%)	71.1 (3%)	0.36 (9.1%)	26.7 (3%)
	70.4 (2.1%)		0.34 (3%)