Creep Behaviour of Wood and Wood-Based Materials: Recent Advances in the State-Of-The-Art and Open Questions.

• The rheological properties of wood and wood-based materials are becoming increasingly important both in timber construction, and in furniture and interior design. The topic has already been intensively researched in the 1970s and 1980s. In the context of work on modelling stresses and deformations, and the development of new engineered wood products (EWPs), investigations in this topic have been intensified in recent years. Several projects are ongoing, mostly concerning basic research on the rheological properties on solid wood. The objective of this study was to give an update on the state-of-the-art on creep behaviour of wood and wood-based materials, and to present some research questions relevant for the further development of the field. Characteristic values for Kdef, i.e. correction factors to be taken into account due to creep of the material according to Eurocode 5, are usually used as a characteristic value in the timber construction. Because of the following reasons, basic studies on rheological properties of wood and woodbased materials are still largely lacking:● the development of new EWPs, especially from hardwoods, ● the use of new adhesive systems and the related change in adhesive properties,● the reduction of formaldehyde content in adhesives for particleboard and medium-density fibreboard (MDF), and● the increased use of waste wood and recycled wood in particleboard production (up to 100% particles may be based on waste wood or recycled wood). 

Ämnesord

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

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

TEKNIK OCH TEKNOLOGIER  -- Materialteknik -- Kompositmaterial och -teknik (hsv//swe)

ENGINEERING AND TECHNOLOGY  -- Materials Engineering -- Composite Science and Engineering (hsv//eng)

Nyckelord

adhesives

influencing factors

recycled wood

rheological properties

wood-material parameters

Träteknik

Wood Science and Engineering

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