TY - CHAP A1 - Shlychkova, Darita A1 - Pasternak, Hartmut T1 - Numerical analysis of lightweight structured sandwich beams made of steel T2 - 16th International Scientific Conference VSU 2016, Sofia, 2016, vol. 1 N2 - Using a special technology it is possible to produce thin "honeycomb" structured plates. Such plates have been used e.g. for the roof of the sport complex "Olimp" in Odessa. That roof gives an extraordinary impression. That is why the question: how do structured plates behave as beams with C-section under concentrated force in the middle of the upper flange? In an ongoing project, two of those structured plates were assembled in different ways trough point welding. "Sandwich" beams were modelled and calculated using the nonlinear finite elements. Using Abaqus software load deformation curves for each beam and local stability were analyzed. Those sandwich beams may be used in exhibition stand construction. KW - Lightweight constructions, structured steel plates, sandwich beam, modelling Y1 - 2016 SP - 318 EP - 323 PB - VSU CY - Sofia ER - TY - GEN A1 - Shoushtarian Mofrad, Ashkan A1 - Shlychkova, Darita A1 - Ciupack, Yvonne A1 - Pasternak, Hartmut T1 - FE Modelling of Sandwich Panels with Screwed Joint at Elevated Temperatures T2 - XVIII ANNIVERSARY INTERNATIONAL SCIENTIFIC CONFERENCE BY CONSTRUCTION AND ARCHITECTURE VSU'2018, At Sofia, Bulgaria N2 - Understanding and predicting sandwich structure behavior in fire has been of particular interest to researchers for a long time. Sandwich panel joints are playing an important role since they not only connect sandwiches to a bearing structure, but also play a key role in stabilization of the whole building. This paper presents an investigation of a sandwich panel behavior. The sandwich panel consist of two steel layers and PIR core between them and is connected to a HEA 160 flange with the help of a screw. Using ABAQUS software, this connection is modelled and deformation fields with temperature distribution area are analyzed. The modelling process includes many stages associated with each other: static, heat transfer and sequential analysis that includes both previous analyses. Y1 - 2018 UR - https://www.researchgate.net/publication/342522191_FE_MODELLING_OF_SANDWICH_PANELS_WITH_SCREWED_JOINT_AT_ELEVATED_TEMPERATURES ER - TY - GEN A1 - Shlychkova, Darita A1 - Pasternak, Hartmut T1 - Numerical analysis and laboratory experiments of lightweight structured sandwich beams made of steel T2 - Proceedings VII International Scientific Conference VSU 2017, 8-9 Juni 2017, Sofia, Bulgaria N2 - Using special technology it is possible to produce thin steel plates with a 3-D structure - hexagonal staggered pattern. Such sheets find a range of application in automotive and aerospace industry. The question is: Can we use those sheets also for building applications? Therefore their behaviour under external loads has to be studied. As an example beams with C-section made of structured sheets under concentrated force in the middle of the upper flange are investigated. This article provides information about load capacity of beams, assembled from structured plates with different thickness. Using Abaqus software beams were modelled and deformation fields for each of them were analyzed. To compare computer calculations with actual results, real sized beams made of structured sheets were constructed in laboratory and bending tests were conducted. Y1 - 2017 SN - 1314-071X VL - Volume 1 SP - 252 EP - 260 CY - Sofia, Bulgaria ER - TY - GEN A1 - Shoushtarian Mofrad, Ashkan A1 - Shlychkova, Darita A1 - Ciupack, Yvonne A1 - Pasternak, Hartmut T1 - Study of Bending, Translational and Torsional Stiffness of Sandwich Panels in Fire T2 - 7th International Conference Civil Engineering – Science and Practice (GNP), Kolašin, 10-14 March 2020, Book of abstracts Y1 - 2020 UR - https://www.researchgate.net/publication/340163960_2020_GNP_sandwich_panels_in_fire ER -