Danubia Adria Symposium on Advances in Experimental Mechanics, which is annually organized by Danubia Adria Society of Experimental Mechanics is international conference with main scopes in highlighting latest innovations, R&D and industrial activities in area of experimental methods in mechanics, as well as providing forum for discussion of the latest research results, new developments of concepts and technologies, proven techniques, as well as practical applications and standardization of the experimental methods in mechanics. Fort this invited lecture the group presented basic principles of time-temperature superposition and also information related to forthcoming standard related to this superposition principle. Time-temperature superposition principle is an essential part of every time-dependent experimental determination of polymeric or in our case metal-polymer composites.
B.04 Guest lecture
COBISS.SI-ID: 14271515The purpose of the "19th International Workshop on Advances in Experimental Mechanics" is the overview of the status in the field of Experimental Mechanics, coordination and exchange of ideas on research and applications in this field, and possibilities of knowledge transfer in the industry environment. Besides oral contributions of eminent scientists from all around the world, also "younger" participants have opportunity to present their work, to exchange opinions and establish contacts with experts from other research institutions and companies. Within the Workshop part of discussion and presentations were dedicated to flowability and behavior of granulated materials, where also GFA apparatus (Granular Friction Apparatus) was presented as a new experimental technique to determine friction inside granular material.
B.01 Organiser of a scientific meeting
COBISS.SI-ID: 282435840Patented solution utilizes all possible energy dissipation mechanisms and represents an optimal (ultimate) solution for the novel damping system. Such damping elements that are built in railway sleeper consist of elastomeric granular material, which is encapsulated in a flexible glass (carbon or basalt) fiber tube. Granular materials when excited beyond a certain level of stress flow similarly as liquids while maintaining all properties of a bulk material. The macroscopic flow of particles further expands the energy dissipation capability of granular materials. Hence, micro- to macro-size multimodal elastomeric granular material may be used as a pressurizing media (similar as air in tires) to impose hydrostatic pressure on itself, and change frequency dependence of its own energy absorption properties. With proper adjustment of pressure we also adjust the stiffness of the damping element (similar as with air in tiers). In addition, the proposed particle-filled damping elements provide greater energy dissipation, since when granular materials are deformed there is relative motion of particles; such motion causes additional energy dissipation through friction. Our proposed solution consists of micro- and macro-sized particles. Smaller particles lead to more surface area per unit volume, which increases the magnitude of frictional dissipation energy caused by particle-particle interaction; while larger particles will allow macroscopic flow, as described above.
F.32 International patent
COBISS.SI-ID: 12444699