Selected mechanical and physical properties of cherry and walnut wood

• Comprehensive work is in progress to preserve wood cultural assets in, for example, museums. Numerical simulation, namely finite element method (FEM), is performed to model the impact of climate change to avoid unnecessary damage in the objects. Material parameters for adhesives and coating materials, and mechanical properties along the three main axes (longitudinal, radial and tangential) of wood are then required for the modelling. In the present work, the modulus of elasticity, shear modulus, Poisson’s ratio and ultimate strengths, in the three main directions and in various moisture conditions were experimentally estimated for cherry (Prunus avium L.) and walnut (Juglans regia L.) wood, which are common species used in cultural assets and furniture. Characteristic values for Norway spruce (Picea abies L.) were also listed for comparison. Based on these data, orthotropic elastic deformation bodies were calculated. Furthermore, the sorption behaviour, the swelling and the diffusion resistance (dry and wet cup method) were also determined.

Ämnesord

LANTBRUKSVETENSKAPER  -- Lantbruksvetenskap, skogsbruk och fiske -- Trävetenskap (hsv//swe)

AGRICULTURAL SCIENCES  -- Agriculture, Forestry and Fisheries -- Wood Science (hsv//eng)

Nyckelord

hardwood

orthotropic mechanical properties

sorption

diffusion

Träteknik

Wood Science and Engineering

Publikations- och innehållstyp

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