Zobrazeno 1 - 10
of 75
pro vyhledávání: '"Cristian Teodosiu"'
Publikováno v:
International Journal of Plasticity. 74:17-34
In this study, finite element simulations synchronized with in-situ tensile tests have identified microstructural damage models in a 600 MPa grade dual-phase steel with 10% martensite volume fraction. Firstly, in-situ tensile tests have been carried
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::28a7f2382c94dfa68e4dd873c5dc421b
https://doi.org/10.1016/j.ijplas.2015.06.004
https://doi.org/10.1016/j.ijplas.2015.06.004
Publikováno v:
International Journal for Numerical Methods in Engineering
International Journal for Numerical Methods in Engineering, Wiley, 2009, 80 (3), pp.381-402. ⟨10.1002/nme.2640⟩
International Journal for Numerical Methods in Engineering, Wiley, 2009, 80 (3), pp.381-402. ⟨10.1002/nme.2640⟩
Modelling of plastic anisotropy requires the definition of stress potentials (coinciding with the yield criteria in case of the associated flow rules) or, alternatively, plastic strain-rate potentials. The latter approach has several advantages whene
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c8ad068abe21adaef03be83b786c1f73
https://doi.org/10.1002/nme.2640
https://doi.org/10.1002/nme.2640
Publikováno v:
International Journal of Mechanical Sciences. 50:175-192
This paper describes new techniques for the sheet metal forming simulation using a local interpolation for tool surfaces proposed by Nagata [Simple local interpolation of surfaces using normal vectors. Computer Aided Geometric Design 2005;22:327–47
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bb64005d716ffa8740d844871ef5eefc
https://doi.org/10.1016/j.ijmecsci.2007.07.005
https://doi.org/10.1016/j.ijmecsci.2007.07.005
Autor:
Cristian Teodosiu
The book gives a comprehensive view of the present ability to take into account the microstructure and texture evolution in building up engineering models of the plastic behaviour of polycrystalline materials at large strains. It is designed for post
Publikováno v:
MATERIALS TRANSACTIONS. 49:278-283
In this study, the effect of tool-modeling accuracy on a finite-element simulation of a square-cup deep-drawing process is examined. First, the accuracy of tool modeling using a conventional approach, in which polyhedral surfaces are used, is compare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e62d459c47a3bf220c218b2254238104
https://doi.org/10.2320/matertrans.p-mra2007885
https://doi.org/10.2320/matertrans.p-mra2007885
Publikováno v:
Key Engineering Materials. :743-748
This paper describes the effect of tool modeling accuracy on the accuracy of springback simulation in sheet metal forming. Simulations of a two-dimensional draw-bending process are carried out by using the polyhedral tool model and the model whose su
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a8ed3e859bac8b203bf78ae01abc47a
https://doi.org/10.4028/www.scientific.net/kem.340-341.743
https://doi.org/10.4028/www.scientific.net/kem.340-341.743
Publikováno v:
Journal of the Japan Society for Technology of Plasticity. 48:61-65
In this study, the effect of tool-modeling accuracy on a finite-element simulation of a square-cup deep-drawing process is examined. First, the accuracy of tool modeling using a conventional approach, in which polyhedral surfaces are used, is compare
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8eab2162001ce793c806cd77314d7a83
https://doi.org/10.9773/sosei.48.61
https://doi.org/10.9773/sosei.48.61
Publikováno v:
International Journal of Plasticity
International Journal of Plasticity, Elsevier, 2006, 22 (12), pp.2226-2271. ⟨10.1016/j.ijplas.2006.03.010⟩
International Journal of Plasticity, Elsevier, 2006, 22 (12), pp.2226-2271. ⟨10.1016/j.ijplas.2006.03.010⟩
On the basis of the microstructural evolution after two-stage non proportional loading at finite strains, a so-called microstructural model was developed by Teodosiu and Hu (1995) that accurately describes the macroscopic anisotropic behaviour such a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6c05d5f0f168ecf7be11364d14bbcbdb
https://doi.org/10.1016/j.ijplas.2006.03.010
https://doi.org/10.1016/j.ijplas.2006.03.010
Publikováno v:
Journal of Materials Processing Technology. 173:178-184
The prediction of part defects in sheet metal forming by numerical simulation allows the automotive makers to reduce the costs of designing tools and to shorten the time-to-market cycle. The research is focused on improving the predictability of spri
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0310fe3eec259c0f7c20b07bcf769b7d
https://doi.org/10.1016/j.jmatprotec.2005.11.023
https://doi.org/10.1016/j.jmatprotec.2005.11.023