Recent biaxial experiments on spruce wood show that consideration of an elliptic failure surface according to Tsai and Wu and an elastic model for stress states within this envelope lead to an insufficient description of the mechanical behavior...
Keywords: biaxial strength, constitutive model, failure envelope, orthotropy, spruce wood
05/2005 | Holzforschung, Walter de GruyterSapwood chips and ground wood of spruce have been extracted with pressurised pure water in an accelerated solvent extractor at temperatures from 100 to 180°C...
Keywords: acetyl groups, galactoglucomannan, hemicelluloses, hot-water extraction, lignin, molar mass, Picea abies, pressurised extraction, spruce wood, xylan
11/2008 | Holzforschung, Walter de Gruyter