20.500.12556/DKUM-67098 Damage and failure modeling of lotus-type porous material subjected to low-cycle fatigue The investigation of low-cycle fatigue behaviour of lotus-type porous material is presented in this paper. Porous materials exhibit some unique features which are useful for a number of various applications. This paper evaluates a numerical approach for determining of damage initiation and evolution of lotus-type porous material with computational simulations, where the considered computational models have different pore topology patterns. The low-cycle fatigue analysis was performed by using a damage evolution law. The damage state was calculated and updated based on the inelastic hysteresis energy for stabilized cycle. Degradation of the elastic stiffness was modelled using scalar damage variable. In order to examine crack propagation path finite elements with severe damage were deleted and removed from the mesh during simulation. The direct cyclic analysis capability in Abaqus/Standard was used for low-cycle fatigue analysis to obtain the stabilized response of a model subjected to the periodic loading. The computational results show a qualitative understanding of pores topology influence on low-cycle fatigue under transversal loading conditions in relation to pore orientation. porous materials low-cycle fatigue damage finite element analysis porozni materiali malo-ciklično utrujanje poškodba metoda končnih elementov true false true Angleški jezik Slovenski jezik Znanstveno delo 2017-08-02 12:21:48 2017-08-02 12:22:26 2022-08-01 13:32:40 2019-07-11 16:08:57 2016 0 0 Str. 142-151 št. 35 Letn. 10 January 2016 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 1971-8993 621.7+621.9 515811097 19253782 10.3221/IGF-ESIS.35.17 1971-8993 URN:SI:UM:DK:X0F9RYE2 Frattura_ed_Integrità_Strutturale_2016_Kramberger,_Sterkus,_Glodez_Damage_and_failure_modeling_of_lotus-type_porous_material_subjected_t.pdf Frattura_ed_Integrità_Strutturale_2016_Kramberger,_Sterkus,_Glodez_Damage_and_failure_modeling_of_lotus-type_porous_material_subjected_t.pdf 1 CCB4DE619A0963A7E7B7E62D75716FF8 eb2c2bfd4eda2da66308d48faeaef99012d8f1c238128f1e5157dfed54fa93c8 76b7fb56-7c0e-11eb-bb7a-00155d0001ca 20.500.12556/dkum/813b0d5b-4a30-4755-957d-c341fc20ef30 https://dk.um.si/Dokument.php?lang=slv&id=114712 http://www.fracturae.com/index.php/fis/article/view/IGF-ESIS.35.17 1 https://dk.um.si/Dokument.php?lang=slv&id=114711 Fakulteta za strojništvo 0 0 0