Projects / Programmes
January 1, 2004
- December 31, 2008
| Code |
Science |
Field |
Subfield |
| 2.05.00 |
Engineering sciences and technologies |
Mechanics |
|
| 2.11.00 |
Engineering sciences and technologies |
Mechanical design |
|
| 2.04.00 |
Engineering sciences and technologies |
Materials science and technology |
|
| Code |
Science |
Field |
| T210 |
Technological sciences |
Mechanical engineering, hydraulics, vacuum technology, vibration and acoustic engineering |
Nonlinear mechanics of structures, dynamics, optimisation of technological processes
Researchers (19)
Organisations (1)
Abstract
The main goal of the program is geometric, static, kinematic and dynamic optimisation of structure elements and structures and optimisation of some special technological processes. The optimisation includes research in the field of non-linear mechanics of material and structures considering the non-linear relationship between outer loads and displacements and non-linear stress-strain function, as follows: static and dynamic buckling problems of thin-walled elements and structures and structures whose behaviour is based on the snap-through phenomenon. The research also includes the post buckling problems and non-linear dynamic problems of real structures with non-linear behaviours in the time, frequency and phase space.
Significance for science
Our research results are important for further development in area of modelling of constrained recovery of structural elements made of shape memory alloys. Using shape memory alloys is very important because the shape memory phenomenon and the constrained recovery process can be innovatively applied in many practical applications. Since the process is still not well described, its consequences cannot be predicted adequately. Efficient mathematical models of constrained recovery would lead to better understanding of the process. The theory of nonlinear elasticity provides a gateway towards the understanding of more complex (non-elastic) material behaviour in the large deformation regime. Additionally, because of its intrinsic nonlinearity, the equations of nonlinear elasticity provide a rich basis for purely mathematical studies in, for example, nonlinear analysis. The developed procedure for the final shape prediction of formed parts will be based on improved understanding and characterization of material behaviour, its benefit in solving real industrial problems will be significant.
Significance for the country
Efficient numerical methods for predicting material behaviour or behaviour of parts made of that material enable the development of products with high added value (knowledge based products, use of innovative materials) and at the same time minimize the material cost, since the product can be optimized in the computer model phase before the actual prototype is built. The activities of the laboratories of research programme Mechanics in Engineering are closely linked with the industry, mainly the Slovenian component supplierswho are becoming an important rival globally, even though foreign industry has bigger production and human resources capacity. As a consequence and due to the small size of Slovenia in general, Slovenia has to enhance/develop new scientific disciplines in a systematic way. Such an orientation/focus enables to create better products where geometrical and material nonlinear mechanics and dynamics play a very important role in many cases. In laboratories of research programme Mechanics in Engineering there are currently in addition to state-funded young researchers and also three young researchers from the industry (Cimos, Domel, Iskra Avtoelektrika). In this way the knowledge is, to some extent, directly transferred into the industry. Together with some large Slovenian companies the laboratories have been collaborating with these companies on a few research- and applied-research -oriented projects. These projects in general enable companies to simulate and analyse their key products in a valid way and most importantly, in the prototyping phase of development. Quality computer simulations enable industrial companies to design and develop forming tools and to search for proper technological parameters in the virtual environment, which significantly reduces costs for modification of tools and improves time- efficiency.
Most important scientific results
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Most important socioeconomically and culturally relevant results
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