Non-destructive evaluation of selected plantation species

Nurul Faziha I. Malaysia Sarawak Univ., . and Ismail J., . and Sinin H., . (2009) Non-destructive evaluation of selected plantation species. [Proceedings Paper]

Non-destructive evaluation NDE of wood strength is getting great attention. By using NDE in-situ wood strength can be determined without much sample preparation and more importantly without destroying the sample. This study attempted to employ NDE in wood by means of free-free flexural vibration. The dynamic moduli of elasticity were determined on a Hevea brasi/iesis b Acacia mangium and c Paraserianthes moluccana. Samples of size 10 R x 20 T x 340 mm L were prepared from tension and opposite wood of the intended species. For tension wood the results of a b and c were 12.21 14.45 and 6.71 GPa respectively. The results for opposite wood of a b and c were 11.84 13.10 and 7.31 GPa respectively. Destructive tests were done on the same samples where modulus of elasticity MOE and modulus of rupture MOR were determined using three-point bending. For species a the MOE values of tension and opposite wood were 10.76 and 9.42 GPa and the MOR values were 52.89 and 44.19 MPa respectively. For species b the MOE values were 12.64 and 11.52 GPa in tension and opposite wood respectively. For MOR the results in tension and opposite wood were 110 and 96.98 MPa respectively. For species c the results for MOE values in tension and opposite wood were 5.68 and 6.53 GPa and those for MOR values were 34.69 and 41.02 MPa respectively.

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Abstract

Non-destructive evaluation NDE of wood strength is getting great attention. By using NDE in-situ wood strength can be determined without much sample preparation and more importantly without destroying the sample. This study attempted to employ NDE in wood by means of free-free flexural vibration. The dynamic moduli of elasticity were determined on a Hevea brasi/iesis b Acacia mangium and c Paraserianthes moluccana. Samples of size 10 R x 20 T x 340 mm L were prepared from tension and opposite wood of the intended species. For tension wood the results of a b and c were 12.21 14.45 and 6.71 GPa respectively. The results for opposite wood of a b and c were 11.84 13.10 and 7.31 GPa respectively. Destructive tests were done on the same samples where modulus of elasticity MOE and modulus of rupture MOR were determined using three-point bending. For species a the MOE values of tension and opposite wood were 10.76 and 9.42 GPa and the MOR values were 52.89 and 44.19 MPa respectively. For species b the MOE values were 12.64 and 11.52 GPa in tension and opposite wood respectively. For MOR the results in tension and opposite wood were 110 and 96.98 MPa respectively. For species c the results for MOE values in tension and opposite wood were 5.68 and 6.53 GPa and those for MOR values were 34.69 and 41.02 MPa respectively.

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Item Type:	Proceedings Paper
Additional Information:	4 tables
AGROVOC Term:	Wood
AGROVOC Term:	Building materials
AGROVOC Term:	Nondestructive testing
AGROVOC Term:	Hevea brasiliensis
AGROVOC Term:	Acacia mangium
AGROVOC Term:	Paraserianthes
AGROVOC Term:	Wood bending
Geographical Term:	MALAYSIA
Depositing User:	Ms. Suzila Mohamad Kasim
Last Modified:	24 Apr 2025 05:14
URI:	http://webagris.upm.edu.my/id/eprint/11451

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