In situ acoustic methods to estimate the physical and mechanical aging of oriented strand board

Bobadilla Maldonado, Ignacio and Robles, Marta and Martínez, Roberto and Iñiguez Gonzalez, Guillermo and Arriaga Martitegui, Francisco (2011). In situ acoustic methods to estimate the physical and mechanical aging of oriented strand board. In: "17th International Nondestructive Testing and Evaluation of Wood Symposium", 14/10/2011 - 16/10/2011, Sopron, Hungría.

Description

Title: In situ acoustic methods to estimate the physical and mechanical aging of oriented strand board
Author/s:
  • Bobadilla Maldonado, Ignacio
  • Robles, Marta
  • Martínez, Roberto
  • Iñiguez Gonzalez, Guillermo
  • Arriaga Martitegui, Francisco
Item Type: Presentation at Congress or Conference (Article)
Event Title: 17th International Nondestructive Testing and Evaluation of Wood Symposium
Event Dates: 14/10/2011 - 16/10/2011
Event Location: Sopron, Hungría
Title of Book: Proceedings 17th International Nondestructive Testing and Evaluation of Wood Symposium
Date: 2011
Subjects:
Faculty: E.U.I.T. Forestal (UPM)
Department: Ingeniería Forestal [hasta 2014]
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Following the success achieved in previous research projects usin non-destructive methods to estimate the physical and mechanical aging of particle and fibre boards, this paper studies the relationships between aging, physical and mechanical changes, using non-destructive measurements of oriented strand board (OSB). 184 pieces of OSB board from a French source were tested to analyze its actual physical and mechanical properties. The same properties were estimated using acoustic non-destructive methods (ultrasound and stress wave velocity) during a physical laboratory aging test. Measurements were recorded of propagation wave velocity with the sensors aligned, edge to edge, and forming an angle of 45 degrees, with both sensors on the same face of the board. This is because aligned measures are not possible on site. The velocity results are always higher in 45 degree measurements. Given the results of statistical analysis, it can be concluded that there is a strong relationship between acoustic measurements and the decline in physical and mechanical properties of the panels due to aging. The authors propose several models to estimate the physical and mechanical properties of board, as well as their degree of aging. The best results are obtained using ultrasound, although the difference in comparison with the stress wave method is not very significant. A reliable prediction of the degree of deterioration (aging) of board is presented.

More information

Item ID: 12466
DC Identifier: http://oa.upm.es/12466/
OAI Identifier: oai:oa.upm.es:12466
Official URL: http://woodndt.nyme.hu/
Deposited by: Memoria Investigacion
Deposited on: 09 Aug 2012 08:15
Last Modified: 21 Apr 2016 11:43
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