20.500.12556/RUL-159254 Analyzing material softening and strain localisation through embedded strong discontinuity approach within velocity-based beam formulation In this paper, we propose a novel computational formulation capable of solving the problem of material softening and the emerging localisation of strains in spatial frame-like structure, a common phenomenon for brittle heterogeneous materials. This study adopts the embedded strong discontinuity approach within our original velocity-based framework. The velocity-based formulation is thus enhanced with additional capabilities of detection of critical load level and critical cross-section and introduction of the jump-like variables at the level of velocities and angular velocities to enable more realistic description of strain localisation. A modified consistency condition is derived using the method of weighted residuals in complete accordance with the theoretical concept of strong discontinuity. One of the key advantages of the proposed method is its computational efficiency, which is preserved even after detecting cross-sectional singularities and handling post-critical localised strains. The numerical examples show the effectiveness and robustness of the proposed approach. civil engineering embedded discontinuity material softening three-dimensional rotations post-critical analysis strain localisation gradbeništvo vključene nezveznosti mehčanje materiala prostorske rotacije postkritična analiza lokalizacija deformacij true false true Angleški jezik Slovenski jezik Članek v reviji 2024-07-04 09:21:35 2024-07-04 09:21:37 2024-07-14 03:24:25 0000-00-00 00:00:00 2024 0 0 16 str. Vol. 301, art. 107464 2024 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 624.04:624.072 0045-7949 10.1016/j.compstruc.2024.107464 200643843 1-s2.0-S0045794924001937-main.pdf 1-s2.0-S0045794924001937-main.pdf 1 713635DC844BB03D6F921D0CF2FD4F95 c0311ed63e291d07bbea11ff64f29783f1192f9efae25744093f7c6b3621a911 015ed687-39d8-11ef-90ba-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=187214 https://www.sciencedirect.com/science/article/pii/S0045794924001937 0 8faa4d47-3e95-11ef-8f74-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=187454 Fakulteta za gradbeništvo in geodezijo 0 0 0