Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Steffen Rothe"'
Autor:
Stefan Hartmann, Steffen Rothe
Publikováno v:
GAMM-Mitteilungen. 40:8-26
Field-assisted sintering technology (FAST) implies a multifield problem between electrical, thermal and mechanical fields. Based on a constitutive model proposed in [1], the numerical treatment of the three-field problem in a monolithic finite elemen
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::62c44e65cf5f4995eb33b1f543aefdaa
https://doi.org/10.1002/gamm.201710003
https://doi.org/10.1002/gamm.201710003
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 293:375-410
In this article we investigate a fully, thermo-mechanically coupled viscoplasticity model in view of various numerical aspects. First, we develop the entire system of differential–algebraic equations resulting from the spatially discretized princip
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::82b6941814543c43118e0b09709a3c45
https://doi.org/10.1016/j.cma.2015.05.002
https://doi.org/10.1016/j.cma.2015.05.002
Autor:
Stefan Hartmann, Steffen Rothe
Publikováno v:
Archive of Applied Mechanics. 85:1103-1125
In the field of nonlinear finite element analysis, the linearization within the Newton–Raphson and the Multilevel-Newton–Raphson algorithm requires the computation of the stresses and the so-called consistent tangent operator. There are several p
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4aed364238d5116ff481da7e9e72cb3
https://doi.org/10.1007/s00419-014-0939-6
https://doi.org/10.1007/s00419-014-0939-6
Publikováno v:
Archive of Applied Mechanics. 85:1245-1264
Single-field problems are well understood concerning their numerical treatment and their numerical problems. In coupled situations, this is not always the case. This article is an attempt to fill the gap for the three-field problem of small strain el
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e809abdd0545ff8acba409cbb9c6a4b6
https://doi.org/10.1007/s00419-014-0948-5
https://doi.org/10.1007/s00419-014-0948-5
Publikováno v:
Engineering with Computers. 31:141-159
In view of code verification of finite element implementations and for material parameter identification purposes it is of interest to make use of stress algorithms developed for three-dimensional finite element computations. In the case of homogeneo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6ebc3ef61236a56380e58281605abc88
https://doi.org/10.1007/s00366-013-0337-7
https://doi.org/10.1007/s00366-013-0337-7
Publikováno v:
Archive of Applied Mechanics. 82:1057-1074
The method of vertical lines in the case of quasi-static solid mechanics applying constitutive models of evolutionary-type yields after the spatial discretization by means of finite elements a system of differential-algebraic equations. It is of subs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c59d26ec3ce1faf008865e4ef1a342d2
https://doi.org/10.1007/s00419-012-0617-5
https://doi.org/10.1007/s00419-012-0617-5
Publikováno v:
Computational Mechanics. 48:81-96
An accurate prediction of the temperature distribution in space and time plays an important role in many industrial applications, in particular when phase transformations are involved. In this article the thermo-physical properties of steel 51CrV4 (S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f53194b2a99b67ed87af0de3388d2ce6
https://doi.org/10.1007/s00466-011-0572-y
https://doi.org/10.1007/s00466-011-0572-y
Autor:
Yedidia Haim, Stefan Hartmann, S. Kalabukhov, Steffen Rothe, Yaniv Gelbstein, Nahum Frage, VladimirKasiyan
Publikováno v:
Sintering Techniques of Materials
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c0963c723bae7de76d660a1a872c1fa2
http://www.intechopen.com/articles/show/title/correlation-between-thermal-and-electrical-properties-of-spark-plasma-sintered-sps-porous-copper
http://www.intechopen.com/articles/show/title/correlation-between-thermal-and-electrical-properties-of-spark-plasma-sintered-sps-porous-copper
Publikováno v:
Advanced Structured Materials ISBN: 9783642363931
In the range of field-assisted sintering technology or spark plasma sintering all materials in the testing machine undergo very large temperature changes. The powder material, which has to be sintered, is filled into a graphite die and mechanically l
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f4a4e2f3f81afd7063af7750d5039141
https://doi.org/10.1007/978-3-642-36394-8_8
https://doi.org/10.1007/978-3-642-36394-8_8
A Rigorous Application of the Method of Vertical Lines to Coupled Systems in Finite Element Analysis
Autor:
Stefan Hartmann, Steffen Rothe
Publikováno v:
Notes on Numerical Fluid Mechanics and Multidisciplinary Design ISBN: 9783642332203
In this essay the rigorous application of the method of vertical lines, i.e. performing the successive steps of spatial and temporal discretization is investigated for dynamical and quasi-statical systems. A particular focus lies in the field of soli
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6f08930ff64ad8ede95099997461e051
https://doi.org/10.1007/978-3-642-33221-0_10
https://doi.org/10.1007/978-3-642-33221-0_10