@ARTICLE{Mullner_Herbert_W._Orthotropic_2005,
 author={Mullner, Herbert W. and Fleischmann, Martin and Eberhardsteiner, Joseph},
 volume={vol. 52},
 number={No 3},
 journal={Archive of Mechanical Engineering},
 pages={253-265},
 howpublished={online},
 year={2005},
 publisher={Polish Academy of Sciences, Committee on Machine Building},
 abstract={Finite element simulations of structures and structural details require suitable material models. Today there is still a lack of such constitutive material models in timber engineering. Therefore, a perennial research project at the Institute for Mechanics of Materials and Structures at the Vienna University of Technology was performed. In this paper the testing equipment, the experiments, the developed material model and its implementation in finite element software will be explained. One focus of the mentioned project is the acquisition of the mechanical behaviour of biaxially, oblique to fibre direction loaded spruce wood. This enables a better simulation of multiaxial stress states in real timber structures. The applicability of the implemented constitutive model will be demonstrated by means of a nonlinear finite element analysis of a bone-shaped test specimen.},
 type={Article},
 title={Orthotropic single-surface plasticity model for spruce wood including the effect of knots},
 URL={http://ochroma.man.poznan.pl/Content/124979/PDF-MASTER/5_MECHANICAL_52_2005_3_Mullner_Orthotropics.pdf},
 keywords={spruce wood, knots, biaxial testing, single-surface plasticity, finite element simulation},
}