Paper of international Conference in Rogow

12 2014

Forestry and Wood Technology N° 82, 2013: 31-38
(Ann. WULS – SGGW, For. And Wood Technol. 82, 2013)
Abstract: Modulus of elasticity tension/bending ratio of polish grown pine (Pinus sylvestris L.) and spruce (Picea abies Karst.) timber.

A representative sample of Pine and Spruce grown in Poland of three different sizes from two sawmills was measured by the grading machine “GOLDENEYE-706”. Matched samples were tested in the laboratory in bending and tension according EN 408. The tension/bending ration of modulus of elasticity is analyzed and compared with dynamic modulus of elasticity.

Forestry and Wood Technology N° 88, 2014: 14-22
(Ann. WULS – SGGW, For. And Wood Technol. 88, 2014)
Abstract: Bending and Tension Strength Classes in European Standards

The current strength classification system for softwood in Europe is based on bending properties (C classes). To optimize the efficient use of timber, especially for engineering timber products, an additional strength class system based on tension properties (T classes) was defined and will be included in the next revision of EN 338. The strength profiles of both strength classes are compared. Today there are grading methods available which are optimized for both strength class systems.

Editor: prof. dr. hab. Ewa Dobrowolska,
Annals of Warsaw University of Life Sciences – SGGW
Forestry and Wood Technology N°82, 2013: 31-38
(Ann. WULS – SGGW, For. And Wood Technol. 82, 2013)
Forestry and Wood Technology N° 88, 2014: 14-22
(Ann. WULS – SGGW, For. And Wood Technol. 88, 2014)