Abstract
The strength of wood is reduced when the stressed volume is increased. The phenomenon is termed size effect and is often explained as being stochastic in the sense that the probability of weak locations occurring in the wood increases with increased volume. This paper presents a hypothesis where the lower strength is caused by stress concentrations. The stress concentrations arise from the anisotropic structure of wood, and are therefore deterministic. The hypothesis is substantiated through extensive FEM-calculations and experiments. To some extent agreement between ultimate stresses determined experimentally and in FEM-computations was found.
Original language | English |
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Title of host publication | Proceedings of Third International Conference of the European Society for Wood Mechanics |
Editors | José Morais |
Place of Publication | Portugal |
Publisher | UTAD, Portugal |
Publication date | 2004 |
Pages | 159-166 |
Publication status | Published - 2004 |
Event | Third International Conference on the European Society for Wood Mechanics - Vila Real, Portugal Duration: 5 Sept 2004 → 8 Sept 2004 Conference number: 3 |
Conference
Conference | Third International Conference on the European Society for Wood Mechanics |
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Number | 3 |
Country/Territory | Portugal |
City | Vila Real |
Period | 05/09/2004 → 08/09/2004 |