An Investigation of Flexural Behavior of Pure and Hybrid Wood Composite Panels Using Weibull Analyses

Abstract

The production of inexpensive wood products compared to their strength is important both in terms of economy and meeting the expectations of users. For this purpose, the use of hybrid wood products is increasing in the furniture industry. With the hybridization process, relatively cheap and flimsy material is combined with a material that has a stronger structure. Thus, stronger bonded material is manufactured cheaper. In this study, the flexural behavior of pure and hybrid wood composite panels, which were prepared by applying longitudinal jointing techniques from different wood materials, was investigated. In this context, pure chipboard, pure medium density fiberboard (MDF), chipboard-east beech and MDF-east beech hybrid wood composite panels were produced. During the hybridization process, oriental beech was combined by using the self-grooving technique in three different numbers as one row, two rows, and three rows. Flexural test results were analyzed according to the Weibull distribution method. The results of the analyses showed that the hybridization process increased the flexural strength and flexural modulus of pure wood panels by up to 214 %, and 95 %, respectively.

Experimental Verification of a Highly Simplified, Preliminary Machinability Test for Wood-Based Boards in the Case of Drilling

“…Wood-based boards are becoming more and more widely used in many areas of industrial production [1][2][3][4]. Their growing popularity has been determined by their numerous advantages over natural wood [5]. Wood-based materials are much cheaper, more homogeneous and isotropic, more resistant to fungi and insects, etc.…”

“…Moreover, they allow the manufacturing of flat surfaces of any size-which is impossible with solid wood. Therefore, the fact that the ability of modern wood-based boards can be tailored to specific uses, together with their strength properties and affordability, makes them a viable solution to reducing the need for solid wood [5][6][7][8][9].…”

“…Only based on the (strictly defined and experimentally determined) relative machinability indexes can the machinability of different materials can be compared-not only in a qualitative (descriptive), but also in a quantitative (numerical) way. This kind of comparison, made for different types of wood-based boards, seems to be very important from the point of view of their designers, producers, and potential users, especially when an innovative wood-based material is to be developed [5,[7][8][9]13,14]. Simple, fast, and inexpensive testing methods are necessary to characterize their machinability properties.…”