Projects / Programmes
Thermo-mechanically loaded exhaust manifold and its durability
| Code |
Science |
Field |
Subfield |
| 2.10.02 |
Engineering sciences and technologies |
Manufacturing technologies and systems |
Manufacturing technology |
| Code |
Science |
Field |
| T210 |
Technological sciences |
Mechanical engineering, hydraulics, vacuum technology, vibration and acoustic engineering |
Temperature, thermo-mechanical fatigue, stress-strain states, durability, service life
Researchers (8)
| no. |
Code |
Name and surname |
Research area |
Role |
Period |
No. of publicationsNo. of publications |
| 1. |
25977 |
MSc Matej Balažic |
Manufacturing technologies and systems |
Researcher |
2008 - 2009 |
0 |
| 2. |
26072 |
Marko Cedilnik |
Mechanical design |
Researcher |
2008 |
0 |
| 3. |
28615 |
Gorazd Jelenc |
Manufacturing technologies and systems |
Technical associate |
2009 - 2011 |
0 |
| 4. |
06883 |
PhD Janez Kopač |
Manufacturing technologies and systems |
Head |
2008 - 2011 |
0 |
| 5. |
23470 |
PhD Peter Krajnik |
Manufacturing technologies and systems |
Researcher |
2008 - 2011 |
0 |
| 6. |
17076 |
PhD Davorin Kramar |
Manufacturing technologies and systems |
Researcher |
2009 - 2011 |
0 |
| 7. |
26559 |
PhD Franci Pušavec |
Manufacturing technologies and systems |
Researcher |
2008 - 2011 |
0 |
| 8. |
18047 |
Vinko Rotar |
|
Technical associate |
2008 |
0 |
Organisations (1)
Abstract
Durability prediction of thermo-mechanically loaded components stands for an up-to-date scientific & research challenge. Although a number of publications exists, there are still no unique guidelines that could be used by the industry in the development of technologically highly complex products, such as automotive engine blocks, exhaust manifolds or breaking systems. Based on the research accomplished so far, we can conclude that especially automotive industry wants to replace the specific, complex and expensive procedures used to predict the durability of thermo-mechanically loaded components with the procedures that are more time-saving and cheaper. The programme group with partners have successfully developed and published original scientific knowledge for several years and transferred it successfully to the industry (CIMOS, LMS, BOSAL). The coupled uniaxial elastoplastic and viscoplastic stress-strain model, developed in the programme group, will be transformed into a multiaxial one. This is how thermo-mechanical loads and damage caused by fatigue, creep or oxidation can be linked directly without approximate formulas. The model parameters will be based on isothermal, standardized low cycle fatigue tests and relaxation tests. Higher reliability of durability prediction and lower experimental costs are expected.
Significance for science
Scientific and research results of the research team contributes significantly to additional knowledge and understanding of finishing processes of modern high-performance materials and heat treated materials. With used scientific methods the new fields of research have been introduced and the level of technological productivity and sustainable finishing processes has been raised. Performed researches actively fill the missing emptiness in the current research of strategic and developmental combining the manufacturing technologies into the whole integrity together with economic, environmental and social segments.
All researches have been performed on technologies which are up-to-date abroad and in Slovenia. Laboratory of cutting (LABOD) at the Faculty of Mechanical Engineering, University of Ljubljana (FS-Lj) is the unique laboratory, specialized for this kind of technology in the area of south and central European region. This contributes a lot to the stronger and more important scientific position of the research team and its recognition abroad. This will be visible in variety of published scientific articles, promotions at the different conferences, cooperation with foreign research institutions ect.
Significance for the country
In Slovenia the research results will dispatch the arrears which are the consequence of missing knowledge, novelties, and ignorance regarding described finishing technologies. Better finishing process and finishing process mechanism understanding will significantly contribute to detailed and more quality understanding of the principles of sustainable manufacturing. Such research and their results coincide with goals and objectives regarding priority national research and development Programme of Republic of Slovenia till year 2013. This additionally motivates our ideas of applying research and findings of sustainable manufacturing into Slovenian industry practice. With such research and results application we additionally stimulate development of sustainable manufacturing for scientific purposes. Under these we understand areas which are dealing with complex and innovative technologies, finishing of modern metal and non-metal materials and technologies which are environmental friendly and are foundation for sustainable economy. Such results on developed technologies or combinations of technologies will significantly contribute to higher level of economic competitive position and will be used for manufacturing of the products intended for special industry branches as aerospace, military, prototype production.
Most important scientific results
Annual report
2008,
2009,
final report,
complete report on dLib.si
Most important socioeconomically and culturally relevant results
Annual report
2008,
2009,
final report,
complete report on dLib.si
