TY - JOUR N2 - The behaviour of porous sinters, during compression and compression with reverse cyclic torsion tests is investigated in the article based on the combination of experimental and numerical techniques. The sinters manufactured from the Distaloy AB powder are examined. First, series of simple uniaxial compression tests were performed on samples with three different porosity volume fractions: 15, 20 and 25%. Obtained data were then used during identification procedure of the Gurson-Tvergaard-Needleman finite element based model, which can capture influence of porosity evolution on plasticity. Finally, the identified Gurson-Tvergaard- Needleman model was validated under complex compression with reverse cyclic torsion conditions and proved its good predictive capabilities. Details on both experimental and numerical investigations are presented within the paper. L1 - http://journals.pan.pl/Content/109168/PDF/AMM-2018-4-49-Madej.pdf L2 - http://journals.pan.pl/Content/109168 PY - 2018 IS - No 4 EP - 1942 DO - 10.24425/amm.2018.125127 KW - numerical modelling KW - porous sinters KW - deformation A1 - Madej, L. A1 - Perzyński, K. A1 - Składzień, M. A1 - Tkocz, M. A1 - Rosiak, M. A1 - Grosman, F. PB - Institute of Metallurgy and Materials Science of Polish Academy of Sciences PB - Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences VL - vol. 63 DA - 2018.12.12 T1 - Application of the GTN Model to Numerical Simulation of Distaloy AB Sinters Behaviour Under Complex Loading Conditions SP - 1937 UR - http://journals.pan.pl/dlibra/publication/edition/109168 T2 - Archives of Metallurgy and Materials ER -