Table 6.

Selected stiffnesses in SW samples with no perforation and with different flute orientations.

	SW-0-F-00	SW-0-F-15	SW-0-F-30	SW-0-F-45	SW-0-F-60	SW-0-F-75	SW-0-F-90
$A_{11}$ (MPa mm)	2184.4	2127.2	1990.3	1854.2	1774.2	1751.5	1756.9
$A_{22}$ (MPa mm)	1756.9	1751.5	1774.2	1854.2	1990.3	2127.2	2184.4
$A_{33}$ (MPa mm)	667.81	699.26	760.50	792.80	760.50	699.30	667.80
$D_{11}$ (MPa mm3)	8628.2	8313.5	7480.9	6521.5	5897.3	5575.8	5469.3
$D_{22}$ (MPa mm3)	5469.3	5575.8	5897.3	6520.4	7480.9	8313.5	8628.2
$D_{33}$ (MPa mm3)	2300.2	2425.2	2650.1	2755.4	2650.1	2425.2	2300.2
$R_{44}$ (MPa mm)	105.08	108.15	119.80	132.90	127.20	126.20	130.90
$R_{55}$ (MPa mm)	130.91	126.16	127.20	132.80	119.80	108.10	105.10