20.500.12556/RUL-134191 Application of failure criteria on plywood under bending In composite materials, the use of failure criteria is necessary to determine the failure forces. Various failure criteria are known, from the simplest ones that compare individual stresses with the corresponding strength, to more complex ones that take into account the sign and direction of the stress, as well as mutual interactions of the acting stresses. This study investigates the application of the maximum stress, Tsai-Hill, Tsai-Wu, Puck, Hoffman and Hashin criteria to beech plywood made from a series of plies of differently oriented beech veneers. Specimens were cut from the manufactured boards at various angles and loaded by bending to failure. The mechanical properties of the beech veneer were also determined. The specimens were modelled using the finite element method with a composite modulus and considering the different failure criteria where the failure forces were calculated and compared with the measured values. It was found that the calculated forces based on all failure criteria were lower than those measured experimentally. The forces determined using the maximum stress criterion showed the best agreement between the calculated and measured forces. max stress Tsai-Wu Tsai-Hill Puck Hoffman Hashin failure criteria beech finite element modelling composites maksimalna napetost Tsai-Wu Tsai-Hill Puck Hoffman Hashin porušitveni kriteriji bukev metoda končnih elementov kompoziti true false true Angleški jezik Slovenski jezik Članek v reviji 2021-12-28 11:58:52 2021-12-28 11:58:56 2022-09-13 03:53:49 0000-00-00 00:00:00 2021 0 0 20 str. iss. 24, art. 4449 Vol. 13 2021 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 630*83 2073-4360 10.3390/polym13244449 90088451 polymers-13-04449-v2.pdf polymers-13-04449-v2.pdf 1 B05F38199783D58116463CF8DA9B0009 ccbfb9bcc42ba35c5616c58205bc231d7d3056a7c8e1024d643379429d77c097 2914fae9-dcd1-11ec-8aca-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=156780 https://www.mdpi.com/2073-4360/13/24/4449 1 006ecf72-67cd-11ec-abdb-00155dcfd717 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=152527 Biotehniška fakulteta 0 0 0