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Abstract
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| In the present work, the applicability of the ultrasonic propagation in the longitudinal and transverse directions to the fiber was verified, as well as inspection by drill to a specimen of Populus alba L. var. bolleana obtained from the Parque del Oeste in Madrid . This test aims to serve as a tool in the expert assessments that assess the phytosanitary status of trees, and thus contribute to minimize the risks that this generates on the population. The selection of the logs was simultaneous to the felling and bucking of the tree, trying that the sample was sufficiently representative of the parts that contain pathologies, as well as of completely healthy parts; It was also sought to obtain wood from different parts of the tree, understanding that it would allow to study the different types of efforts to which the foot was subject throughout its structure. The results show that there is a strong relationship between the degree of degradation caused by pathogens and the speed drops that ultrasound presents when passing through the affected areas; the same effect was had when relating the attacked zones with the resistance that offered the wood attacked to the perforation, with the drill of inspection; It was also found that the factor that determines the previous results is the density of the wood, which decreases when the attack of the pathogens increases. Finally, as part of this research, a trial protocol is proposed to transfer all this information to practice. | |
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International
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Si |
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Congress
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21st International Nondestructive Testing and Evaluation of Wood Symposium |
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960 |
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Place
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Freiburgh im Breisgau, Alemania |
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Reviewers
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Si |
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ISBN/ISSN
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000-00-00-00000-0 |
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Start Date
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24/09/2019 |
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End Date
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27/09/2019 |
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From page
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107 |
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To page
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114 |
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Proceedings: 21st International Nondestructive Testing and Evaluation of Wood Symposium. General Technical Report FPL-GTR-272. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. |