Mechanical properties of laminated bamboo lumber N-finity according to ISO 23478-2022

Al-Rukaibawi, Layth S.; Kachichian, Mansour; Károlyi, György

doi:10.1186/s10086-023-02115-z

Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 4 Compressive strength measurements of N-finity bamboo for all samples

From: Mechanical properties of laminated bamboo lumber N-finity according to ISO 23478-2022

Strength	Sample	Dimension: mm		Height	Area	Max. load	Strength	Mean	STD	COV
Strength	Sample	b	l	h₀	\(\left(A\right)\) (mm²)	N	MPa	MPa		%
\({\sigma }_{11}\)	1	36.51	37.53	74.26	1406.73	97000	68.95	68.60	1.09	1.58
	2	36.56	38.89	73.64	1421.81	97762	68.75
	3	36.56	38.74	73.86	1416.33	95510	67.43
	4	36.63	38.64	73.47	1415.38	99425	70.24
	5	36.55	38.20	73.47	1396.21	95219	68.19
	6	36.56	38.33	73.96	1401.34	99293	70.85
	7	36.56	38.18	73.36	1395.81	96835	69.37
	8	36.58	38.91	72.77	1423.32	96571	67.84
	9	36.65	37.43	73.85	1371.81	95142	69.35
	10	36.52	38.22	74.02	1395.79	94000	67.34
	11	36.57	38.09	73.99	1382.59	95328	68.94
	12	36.58	37.27	74.30	1363.33	92921	68.15
	13	36.48	37.90	74.52	1382.59	95328	68.94
	14	36.51	37.67	73.71	1375.33	95208	69.22
	15	36.68	38.07	73.78	1396.40	92935	66.55
	16	36.57	37.53	73.76	1372.47	92516	67.40
\({\sigma }_{22}\)	1	36.6	37.45	74.34	1370.67	22500	16.41	15.41	0.50	3.20
	2	36.57	37.2	74.71	1360.40	20133	14.80
	3	36.57	36.62	74.59	1339.19	21914	16.36
	4	36.55	37.56	74.42	1372.82	22136	16.12
	5	36.67	37.46	74.41	1373.65	21222	15.45
	6	36.48	37.38	74.52	1363.62	20152	14.78
	7	36.52	37.29	74.29	1361.83	20032	15.44
	8	36.48	37.31	74.32	1361.07	20652	15.17
	9	36.52	37.29	74.29	1361.83	20465	15.03
	10	36.54	37.32	74.23	1373.60	20778	15.13
	11	36.54	37.32	74.23	1363.67	21163	15.52
	12	36.48	37.35	74.11	1362.53	20511	15.05
	13	36.54	37.32	74.23	1363.67	20637	15.13
	14	36.53	37.25	74.10	1360.74	21000	15.43
	15	36.59	37.43	74.16	1369.56	20548	15.05
	16	36.45	37.39	73	1362.86	21423	15.72
\({\sigma }_{33}\)	1	36	37.48	73.14	1349.28	25343	18.78	13.16	4.43	33.68
	2	36.79	36.95	73.05	1359.39	22784	16.76
	3	35.27	37.44	73.03	1320.51	22024	16.67
	4	36.43	37.66	73.03	1371.95	22763	16.59
	5	35.81	37.48	73.14	1342.15	23561	17.55
	6	36.68	37.65	73	1381	6422	4.65
	7	36.9	38.38	73.23	1416.22	18725	13.22
	8	36.68	37.69	72.84	1382.47	13952	10.10
	9	37.87	37.05	73.11	1403.08	25523	18.19
	10	37.02	37.08	72.28	1372.70	14652	10.67
	11	36.74	37.12	72.86	1363.80	17963	13.17
	12	36.45	37.46	73	1365.42	11943	8.75
	13	35.80	37.26	72.87	1334	10668	7.99
	14	36.71	37.33	72.87	1370.38	8532	6.22
	15	37.27	37.04	73.18	1380.48	24133	17.48
	16	36.18	37.35	72.84	1351.32	18674	13.82

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