At first transition from the elastic into the elasto-plastic region, many materials which structural elements are made from exhibit the yield-point phenomenon. In the event of uniaxial cyclic experiments, the yield-point phenomenon is visible only in the first cycle. However, the authors of this paper have proven that the yield-point phenomenon affects the stress-strain response during the entire lifetime of structural elements which are subject to cyclic plasticity. Taking account of the yield-point phenomenon in constitutive models of cyclic plasticity significantly improves the forecast of the stress-strain response and the lifetime of structural elements. For constitutive models of cyclic plasticity, a description and benefit of the yield-point phenomenon during the development of the stress-strain state of a cyclically loaded structural element are presented by comparing experiment and numerical simulation results. In the paper, the emphasis is placed on detailed determination of the benefit as well as the functionality and necessity of taking account of the yield-point phenomenon in constitutive models of cyclic plasticity.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 11953947The paper presents the software solution "BUSO" for viewing and management of data about scheduled public transport. The software application provides search tools and display of entities on maps and orthophoto. The user can enter, edit and catalogue station points, lay out line segments over the existing digital road infrastructure, enter road segments missing from the road network together with their projected and calculated or measured lengths, enter, edit and organize individual bus lines, and display information about the selected entities (station points , line segments, itineraries, roads, settlements, communities). The user can use the software to enter station point properties on the field and to plan and lay out itineraries, join them into lines, regions and prepare the data for export in different forms. A special module enables field acquisition of road axes by using a GPS receiver. The software can be connected to existing information systems for management of public transport data. Due to its openness and modular structure the software can be adapted to user needs and connected to other traffic information systems.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 11916571In the event of vehicle impacts with road lighting columns and traffic signs, injuries to vehicle occupants and damages to other infrastructure often occur. Columns installation and design must be in accordance with the provisions of the EN 40 standard, which defines technical characteristics of columns and methods of column verification. The EN 40 standard defines dimensions, installation method, loadings, dimensioning and other requirements related to the selected column material. Definition of the passive safety of support structures for road equipment is, however, provided by the EN 12767, which determines test parameters and requirements for the performance of the vehicle-column impact.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 12062491