Banner for LabNotes
From Lab Notes
Contact Information
Forest Products Laboratory
One Gifford Pinchot Drive
Madison, WI 53726-2398
Phone: (608) 231-9200
Fax: (608) 231-9592
Email

 

You are here: FPL Home  / Information Products & Services  / Publications

Requested Product

Title: Assessing the Dimensional Stability of Two Hardwood Species Grown in Turkey with Acoustic Measurements

Source: In: Gen. Tech. Rept. FPL-GTR-226. Madison, WI: U.S. Department of Agriculture, Forest Service, Forest Products Laboratory. p. 459-468.

Author(s)Dundar, Turker; Wang, Xiping; As, Nusret; Avci, Erkan

Publication Year: 2013  View PDF »

Category: Conference Proceedings
Associated Research Project(s):   FPL-4714-1B

Abstract: The objective of this study was to examine the potential of acoustic measurement as a rapid and nondestructive method to predict the dimensional stability of oak (Quercus petrea) and chestnut (Castanea sativa) that are commonly used in floor industry. Ultrasonic velocity, specific gravity, and radial, tangential and volumetric shrinkages were measured on seventy-four 20- by 20- by 30-mm specimens obtained from freshly cut oak and chestnut stems at forestlands located in northwest part of Turkey. The ultrasonic velocities of the specimens decreased with increasing equilibrium moisture content (EMC). We found that specific gravity was not a good predictor of the transverse shrinkages as indicated by relatively weak correlations. Ultrasonic velocity, on the other hand, was found to be a significant predictor of the transverse shrinkages for both oak and chestnut. The best results for prediction of shrinkages of oak and chestnut were obtained when the ultrasonic velocity and specific gravity were used together. The multiple regression models we developed in this study explained 77% of volumetric shrinkages in oak and 72% of volumetric shrinkages in chestnut. It is concluded that both ultrasonic velocity and specific gravity be employed as predicting parameters to evaluate the dimensional stability of wood during manufacturing process.

Keywords: dimensional stability, shrinkage, ultrasonic velocity, oak, chestnut

Publication Review Process: Non-Refereed (Other)

File size: 523 kb(s)

Date posted: 10/24/2013
RITS Product ID: 66546
Current FPL Scientist associated with this product
Wang, Xiping
Research Forest Products Technologist
  

Additional items that might interest you
View the video celebrating FPL's 100 years of public service in 2010, from the producers of the Greatest Good....view

Research Highlights from FPL....view

Termite Eradication: A search for the Holy Grail.... view

Moisture Management in Residential Construction Series videos...view

Wood Floor Systems in Residential Construction Series videos....view
- FPL's Mission and Strategic Plan -

FPL's mission is to identify and conduct innovative wood and fiber utilization research that contributes to conservation and productivity of the forest resource, thereby sustaining forests, the economy, and quality of life. ... ..more »

- FPL Research Emphasis Areas -
Advanced Composites

As an integral part of the FPL mission, we improve the long-term sustainability of our Nation's forests by creating valuable composite products from biobased materials ... ..more »


Advanced Structures

The FPL has been in the forefront of wood-frame housing research since 1910 and has long been recognized as a world leader in such housing-related areas as engineered wood ... ..more »


Forest Biorefinery

We all know the compelling reasons that the United States needs to reduce its dependence on fossil fuels. Historically, the greatest increases in energy demand have been for transportation fuels ... ..more »


Nanotechnology

A leader in wood products research for over a century, the FPL is positioning itself to become the lead Federal research facility for the application of nanotechnology in forest products ... more »


Woody Biomass Utilization

Forests in the United States contain a substantial amount of small-diameter, overstocked, and underutilized material.FPL research projects are exploring the potential of the small-diameter ... ..more »