Non-destructive ultrasonic testing method for determining bending strength properties of gmeuna wood (Gmelina arborea)


Citation

Wahyuna M. E., . and Karlinasari L., . and Nugroho N., . Non-destructive ultrasonic testing method for determining bending strength properties of gmeuna wood (Gmelina arborea). pp. 99-104. ISSN 0128-1283

Abstract

The objective of this study was to investigate the usefulness of non-destructive ultrasonic testing method in evaluating wood strength and stiffness of gmelina (Ornelina arboreal from several positions in the tree both vertically and horizontally. These tests were conducted on 72 small clear wood specimens of dimensions 5 x 5 x 76 cm. The effects of position of specimen in a tree could be identified with ultrasonic wave velocity (Vus). The dynamic testing determined by ultrasonic method Vus and dynamic modulus of elasticity (MOEd) were highly correlated with the static bending test (static modulus of elasticity and modulus of rupture). The developed regression models were significant. Ultrasonic method seems applicable in situations where static bending test is not feasible.


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Abstract

The objective of this study was to investigate the usefulness of non-destructive ultrasonic testing method in evaluating wood strength and stiffness of gmelina (Ornelina arboreal from several positions in the tree both vertically and horizontally. These tests were conducted on 72 small clear wood specimens of dimensions 5 x 5 x 76 cm. The effects of position of specimen in a tree could be identified with ultrasonic wave velocity (Vus). The dynamic testing determined by ultrasonic method Vus and dynamic modulus of elasticity (MOEd) were highly correlated with the static bending test (static modulus of elasticity and modulus of rupture). The developed regression models were significant. Ultrasonic method seems applicable in situations where static bending test is not feasible.

Additional Metadata

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Item Type: Article
AGROVOC Term: Gmelina arborea
AGROVOC Term: Ultrasonics
AGROVOC Term: Testing
AGROVOC Term: Strength
AGROVOC Term: Wood density
AGROVOC Term: Plant propagation
AGROVOC Term: Velocity
Depositing User: Ms. Suzila Mohamad Kasim
Last Modified: 24 Apr 2025 06:27
URI: http://webagris.upm.edu.my/id/eprint/21729

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