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Assessment of strength parameters of beech plywood in terms of failure criteria

Makowski A.

Annals of Warsaw University of Life Sciences - SGGW. Forestry and Wood Technology

2014

No. 88

143--146

Assessment of strength parameters of beech plywood in terms of failure criteria. The failure state in a composite layer being in the complex state of stress is defined using the so-called material failure theories. They describe the yield surface of the material, for which the limit of linear elasticity is determined. Failure theories formulated for anisotropic materials are more complex. The paper presents the results of research on strength and deformation of the beech veneer during tension loading in relation to slope of grain. Results of the performed investigations were presented in the form of graphs end figures.