New Perspectives for LVL Manufacturing from Wood of Heterogeneous Quality—Part. 1: Veneer Mechanical Grading Based on Online Local Wood Fiber Orientation Measurement

نویسندگان

چکیده

The grading of wood veneers according to their true mechanical potential is an important issue in the peeling industry. Unlike sawmilling industry, this activity does not currently estimate local properties production. tracheid effect, which enables fiber orientation measurement, has been widely documented for sawn products. A measuring instrument exploiting technology and implemented on a line was developed, enabling us obtain locally which, together with global density, allowed model elastic each veneer. sorting method using data developed presented here. It applied 286 from several logs French Douglas fir, compared used based veneer appearance defects. effectiveness both approaches quantified criteria. This study shows that (based average density) allows better theorical quality discrimination potential. article first series, overall aim enhancing use heterogeneous manufacturing maximized-performance LVL by optimized positioning as well material property modelization.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

A New Vision Inspection Method for Wood Veneer Classification

A vision-based inspection method based on rough set theory, fuzzy set and BP algorithm is presented. The rough set method is used to remove redundant features for its data analysis and procession ability. The reduced data is fuzzified to represent the feature data in a more suitable form as input data of a BP network classifier. By the experimental research, the hybrid method shows good classif...

متن کامل

Stiffness Prediction of Beech Wood Flour Polypropylene Composite by using Proper Fiber Orientation Distribution Function

One of the most famous methods to predict the stiffness of short fiber composites is micromechanical modeling. In this study, a Representative Volume Element (RVE) of a beech wood flour natural composite has been designed and the orientation averaging approach has been utilized to predict its stiffness tensor. The novelty of this work is in finding the proper fiber orientation distribution func...

متن کامل

New species of wood inhabiting discomycetes of Helotilaes for Iran

Four species of wood inhabiting cup fungi belonging to order Helotiales are reported for the first time in Iran. Species are described and illustrated with photographs and drawings. Three genera Arachnopeziza, Hymenoscyphus and Lachnum are new records for Iran.

متن کامل

A novel method for manufacturing of wood flour/PP composites with better fire retardancy and mechanical properties

This study was conducted to investigate the effects of applying methods andamount of ammonium polyphosphate (0, 2 and 4 wt%) on fire retardancy andmechanical properties of wood flour/polypropylene composites. The resultsshowed that addition of fire retardant improved the mechanical properties such astensile and flexural strengths and fire retardancy of composites. But by increasingof fire retar...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Forests

سال: 2021

ISSN: ['1999-4907']

DOI: https://doi.org/10.3390/f12091264