New method to locate the pith position in a wood cross-section based on ultrasonic measurements
| Autor: | Lourenço Panosso Perlin, Ângela do Valle, Roberto Pinto |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
040101 forestry
business.industry 0211 other engineering and technologies 04 agricultural and veterinary sciences 02 engineering and technology Building and Construction Structural engineering Structural element Cross section (physics) Position (vector) 021105 building & construction 0401 agriculture forestry and fisheries General Materials Science Ultrasonic sensor Ultrasonic Tomography Pith business Geology Civil and Structural Engineering |
| Zdroj: | Construction and Building Materials. 169:733-739 |
| ISSN: | 0950-0618 |
| Popis: | There is a growing need for nondestructively evaluate the integrity of trees and wooden structural elements. Such an investigation can be performed with the use of different test methods. Nevertheless, in order to yield acceptable results, the test methods should consider the anisotropic nature of the wood, which includes the shape of the annual rings, and also the pith location in the cross-section. This paper presents a new method to determine the pith location of a tree or structural element made of timber or lumber based on ultrasonic tomography readings. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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