Modelling of material behaviour has significant influence on design and optimization of mechanical structures and consequently calculation of their lifetime. When using complex constitutive material model that describes elastic-plastic behaviour of the cyclically loaded material and takes into account damage occurrence and accumulation, the process of parameter identification from experimental data is very complex and time-consuming. Therefore, complex numerical procedures, carefully chosen algorithms and numerical operators, followed by software solution development are required.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 11315739Real-world situations of vehicles crashing into safety barriers have shown that only seldom a vehicle strikes a barrier under the prescribed conditions recommended by EN 1317 for testing the conformity of safety barriers and that the containment level of vehicles depends largely on the shape, sheetmetal thickness and the height of the barrier post. The jamming of a vehicle wheel behind the barrier post is caused by insufficiently durable beam design that fails to perform its main task (to guide the wheel along the post). In order to prevent wheel jamming, the beam needs to be strong and wide.
F.17 Transfer of existing technologies, know-how, methods and procedures into practice
COBISS.SI-ID: 11087387Road barriers for traffic calming are often used in closed settlements and on settlement borders on local roads. It can often be heard that road barriers are set up unprofessionably, that they are poorly marked and therefore dangerous which may as a result cause vehicle damage and jeopardise the safety of vehicle occupants. We examined a few typical types of barriers set up and their conformity with the applicable regulations.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 10923803According to the standard EN 1317, in a collision of a vehicle into the steel road restraint system the deceleration of the vehicle or passengers, and working width of the road restraint system must not exceed the set values. For better safety of participants in traffic, new form of the steel road restraint system has been developed, based on the results of the numerical analysis of the vehicle impact into the steel road restraint system. In a collision of a vehicle into the new form of the restraint system, the deceleration of vehicle does not exceed the limits of standard 20 g.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 10924059A team have developed and built a prototype of a rotary magnetic refrigerator. The principle of operation of the presented magnetic refrigerator is based on the rotary movement of active magnetic regenerators (AMRs) with a magnetocaloric material and on the magnetic field generated by permanent magnets NdFeB. First part of the paper presents the development and analysis of the structure for generating the magnetic field and the basic operational principle of the MR concerned, and the second part gives a description of the development process for certain key elements of the complete MR system.
B.03 Paper at an international scientific conference
COBISS.SI-ID: 11050011