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Project detail
Duration: 01.01.2006 — 31.12.2008
Funding resources
Czech Science Foundation - Standardní projekty
- whole funder (2006-01-01 - 2008-12-31)
On the project
Cílem projektu je spolupráce dvou institucí při výzkumu velkých elasto-plastických deformací materiálu.
Description in EnglishEfforts are joined by two institutions to perform research in the field of finite elasto-plasticity. The logarithmic XBM (Xiao-Bruhns-Meyers) objective rate and Rougee's metric are employed to propose a general geometric framework. This theory, if successful, will reconcile total and incremental descriptions, being consistent both with the hypoelastic type relations and multiplicative plasticity. Specific material models for metal forming then may be proposed within this arrangement, including theintroduction of damage internal variables and suitable criteria of failure. The models will be implemented in the finite element code PMD available at the Institute of Thermomechanics, using the standard return mapping procedures of numerical integration. As a part of assessment and comparative studies, the latest XBM model should be validated. Material data feed is planned to be accomplished via contact-impact elastic-plastic experiments as in the Taylor test.
Keywordsplasticita, namáhání, metoda konečných prvků, tváření kovů
Key words in Englishplasticity; finite strains; finite element method; metal forming
Mark
GA101/06/0914
Default language
Czech
People responsible
Petruška Jindřich, prof. Ing., CSc. - fellow researcherPlešek Jiří, Ing., CSc. - principal person responsible
Units
Institute of Solid Mechanics, Mechatronics and Biomechanics- (2006-01-01 - 2008-12-31)Institute of Thermomechanics Academy of Sciences of the Czech Republic- (2006-01-01 - 2008-12-31)
Results
JANDORA, R.; PETRUŠKA, J.; JANÍČEK, P. Vliv pravidelných nerovností kola a kolejnice na chování soustavy kolo-kolejnice. In Engineering Mechanics 2006. Svratka: Institute of Theoretical and Applied Mechanics, Academy of Sciences of the Czech Republic, 2006. s. 136-137. ISBN: 80-86246-27-2.Detail
PETRUŠKA, J.; KUBÍK, P.; HŮLKA, J.; ŠEBEK, F. Ductile Fracture Criteria in Prediction of Chevron Cracks. Advanced Materials Research, 2013, vol. 716, no. 1, p. 653-658. ISSN: 1022-6680.Detail
JANDORA, R.; PETRUŠKA, J.; JANÍČEK, P. Chování soustavy kolo-kolejnice s uvažováním nerovností. In Dynamika tuhých a deformovatelných těles 2006, IV. mezinárodní konference. Sborník příspěvků. Ústí n. L.: Fakulta výrobních technologií a menagementu UJEP Ústí n. L., 2006. s. 79-86. ISBN: 80-7044-782-6.Detail
BOŘKOVEC, J.; PETRUŠKA, J. Porovnání modelů tvárného porušování při tlakovém charakteru zatěžování. In Applied Mechanics 2007. Ostrava: VŠB - Technická univerzita Ostrava, 2007. s. 37-38. ISBN: 978-80-248-1389-9.Detail
BOŘKOVEC, J.; PETRUŠKA, J. Computer Simulation of Material Separation Processes. In Engineering Mechanics 2007. Svratka: 2007. s. 19-20. ISBN: 978-80-87012-06-2.Detail
JANDORA, R. Modelling of the Railway Wheelset Movement Considering Real Geometry. In Engineering Mechanics 2007. Svratka: Institute of Thermomechanics Academy of Sciences of the Czech Republic, 2007. p. 105-106. ISBN: 978-80-87012-06-2.Detail
PETRUŠKA, J.; BOŘKOVEC, J. Computational aspects of a bolt head trimming operation. In Computational Plasticity IX. Barcelona: CINME, 2007. p. 766-770.Detail
PEJCHAL, P.; PETRUŠKA, J. The material model of railway wheel for numerical simulations of cyclic deformation. In Engineering mechanics 2006. Svratka: UTAM AV ČR PRAHA, 2006. s. 123-132. ISBN: 80-86246-27-2.Detail
PEJCHAL, P.; PETRUŠKA, J.; JANÍČEK, P. The fatigue of material in the rolling contact of railway wheel and rail. In Developments in machinery design. Bydgoszcz: Univ. of Tech. Bydgoszcz, 2006. p. 1-8. ISBN: 83-87982-96-2.Detail
SKALKA, P.; PETRUŠKA, J.; JANÍČEK, P. Posouzení vlivu lisování lamel brzdných odporníků na jejich provozní spolehlivost. In Developments in Machinery design and control. Bycgoszcz: Uviv. of Technology Bydgoszcz, 2006. s. 1-6. ISBN: 83-87982-96-2.Detail
PETRUŠKA, J.; HORSKÝ, J.; VAVREČKA, L. EXPERIMENTAL AND COMPUTATIONAL ANALYSIS OF PASS ROLLING. In 23rd danubia adria symposium. Žilina: TU Zilina, 2006. p. 33-34. ISBN: 80-8070-589-5.Detail
SKALKA, P.; JANÍČEK, P.; PETRUŠKA, J.; MAROŠ, B. NUMERICAL PREDICTION OF CENTRAL BURSTING IN AXISYMMETRIC COLD DRAWING OF BRASS BAR. In Engineering Mechanics 2007. Svratka: ÚT AV ČR Praha, 2007. p. 249 ( p.)ISBN: 978-80-87012-06-2.Detail
JANDORA, R. A comparison of methods used to calculate contact forces. In Dynamika tuhých a deformovatelných těles 2007, Sborník přednášek z V. mezinárodní konference. Ústí n. L.: Fakulta výrobních technologií a managementu UJEP Ústí n. L., 2007. p. 93-100. ISBN: 978-80-7044-914-1.Detail
SKALKA, P.; PETRUŠKA, J.; JANÍČEK, P. Numerical analysis of fracture during the process of cold drawing of bars. In 11th International Scientific Seminar on Developments in Machinery Design and Control. BYDGOSZCZ BRANCH: POLISH SOCIETY OF MECHANICAL ENGINEERS AND TECHNICIANS, 2007. p. 83-84. ISBN: 83-87982-42-3.Detail
BOŘKOVEC, J.; PETRUŠKA, J. Evaluation of Four Fracture Criteria in Compressive Loading Conditions. 2007, vol. 6, no. 1, p. 9-17.Detail
JANDORA, R. Modelling of railway vehicle movement considering non-ideal geometry of wheels and rails. Applied andComputational Mechanics, 2007, vol. 1, no. 2, p. 489-498. ISSN: 1802-680X.Detail
PETRUŠKA, J.; HORSKÝ, J.; VAVREČKA, L. Optimal cooling of a shaped roll. In Zeszyty naukowe. Gliwice: Polytechnika Gliwice, 2006. p. 127-131. ISBN: 83-60102-30-9.Detail
BOŘKOVEC, J.; PETRUŠKA, J.: VUMAT; VUMAT. UMTMB. (software)Detail
Developments in Machinery Design. Bydgoszcz (11.09.2006)Detail