The Structure and Flexural Properties of Typha Leaves

Table 1

Geometry of cross sections of the Typha leaf specimens.

Specimen number	Leaf cross section	B (mm)	Area (mm^2)	ψA	I (mm^4)	W (mm^3)	ψI
		H (mm)
1-1		15.42	83.01	0.70	328.43	64.15	0.56
		7.71
1-2		14.88	62.95	0.73	142.57	43.77	0.59
		5.81
1-3		14.77	49.57	0.69	75.92	27.67	0.54
		4.86
1-4		15.13	38.06	0.63	34.91	16.31	0.44
		3.99
1-5		14.94	27.06	0.55	10.87	7.39	0.24
		3.32
1-6		13.76	14.14	0.70	2.16	2.4	0.59
		1.47
2-1		14.09	81.82	0.81	270.54	71.28	0.63
		7.15
2-2		12.99	58.31	0.75	118.51	38.86	0.52
		5.95
2-3		13.03	40.42	0.69	46.89	20	0.49
		4.46
2-4		13.91	31.52	0.69	24.71	12.55	0.61
		3.27
2-5		13.84	22.73	0.63	8.5	6.47	0.42
		2.59
2-6		13.69	14.10	0.57	2.36	2.16	0.35
		1.81
3-1		14.42	74.63	0.75	233.8	61.12	0.59
		6.91
3-2		13.42	48.69	0.73	80.74	29.41	0.59
		4.96
3-3		13.33	37.81	0.66	44.23	18.21	0.51
		4.27
3-4		13.47	27.58	0.54	20.24	8.2	0.33
		3.79
3-5		13.35	19.27	0.50	6.49	4.66	0.24
		2.89
3-6		13.24	11.39	0.54	1.71	1.98	0.37
		1.61