The presented device can be used to determine the low-cycle fatigue parameters using classical rotating bending testing procedure. To achieve this goal, a new method for determination of low-cycle fatigue parameters has been developed. The new method is based on cylindrical specimens loaded with pure bending moment and exposed to the rotation. According to the measured values of moments, distorssions and forces, which are induced on the specimen during the test, low-cycle fatugue parameters can be determined using the developed mathematical model.
F.08 Development and manufacture of a prototype
COBISS.SI-ID: 13647638The aim of the symposium was to bring together the international professional community consisting of researchers from academia, engineers from industry and commercial solution providers to give an overview of advances in state-of-the-art production technologies, methods of characterisation, computer modelling and simulation of porous materials and to discuss the current status and to drive the future of porous materials development and application. 24 scientists from 8 different countries presented their work at the symposium. The total number of participants was 65.
B.01 Organiser of a scientific meeting
COBISS.SI-ID: 17408534Within this doctorate thesis, a calculation procedure to determine contact load distribution in large slewing ball bearings was developed. The procedure is based on a vector description of the bearing geometry considering the main external loads of bearing (radial forces, axial forces, tilting moment). Such an approach allows for a definition of any geometry of a bearing and presents a basis for simulation of the influence of the bearing deformations. On the basis of the contact load distribution, as well as the static and dynamic capacity of the raceway, the static and dynamic capacity of the large axial double-row slewingbearing was defined. The calculation procedure was implemented in a computer programme, which can be used to analyze two- and four-contact point single- and double-row large slewing ball bearings.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 251739392Product development process is a complex process and also decision-making process, which is not related only to product design but to all phases of product's life cycle. Material selection within design process is of great importance as preliminary material selection in early stages of design influences activities to follow and define the impact that product has on the environment through its life cycle. Young and inexperienced designers as well as small and medium sized enterprises are often in arduous position as they face dilemmas in decision-making due to lack of experience consequentially resulting as a bad design or a need for hiring an expert. Product's environmental impact is defined with various ecological parameters, which could be controlled in material selection process. Recyclability is one of problematic ecological parameters for polymer materials as their recycle fracture in current supply is quite low in comparison to other materials. Negative human influence on the environment and exploitation of non-renewable resources are pointing out the importance of sustainable development. Intelligent decision support system model for polymer material selection considering environmental impact developed and presented in this doctoral thesis is an original contribution to scientific society. Moreover, system model is computer support for designing environment-friendly polymer products in engineering practice.
D.09 Tutoring for postgraduate students
COBISS.SI-ID: 262505728Associate Professor Polona DObnik Dubrovski is a member of the scientific committee of international textile conference Smartex, which organisers are Kafrelsheikh University Egypt and Ivanovo State Textile Academy Russia. This is evident from the following website http://www.kfs.edu.eg/smartex2/display.aspx?topic=7305.
D.03 Membership in foreign/international boards/committees