Zobrazeno 1 - 10
of 30
pro vyhledávání: '"Thomas Blesgen"'
Autor:
Thomas Blesgen, Ulrich Weikard
Publikováno v:
Electronic Journal of Differential Equations, Vol 2005, Iss 89, Pp 1-17 (2005)
The vector-valued Allen-Cahn equations are combined with elasticity where a linear stress-strain relationship is assumed. A short physical derivation of the generalised model is given and global existence and uniqueness of the solution are shown unde
Externí odkaz:
https://doaj.org/article/912c2415066c47209dfdcdf029d5f89d
Autor:
Thomas Blesgen, Ada Amendola
This article deals with the mathematical derivation and the validation over benchmark examples of a numerical method for the solution of a finite-strain holonomic (rate-independent) Cosserat plasticity problem for materials, possibly with microstruct
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4a041a0c1a6a22764c207804e8ff4b40
https://hdl.handle.net/11386/4732627
https://hdl.handle.net/11386/4732627
Autor:
Thomas Blesgen
Publikováno v:
Composites Part B: Engineering. 115:236-243
A hardening model within the framework of finite-strain Cosserat crystal plasticity is extended to dynamic recrystallization. The new model includes an Avrami equation to account for softening, a level set equation to represent the propagation of the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a856c94b2dac122bccda691b546e1825
https://doi.org/10.1016/j.compositesb.2016.10.005
https://doi.org/10.1016/j.compositesb.2016.10.005
This work reconsiders the Becker-Doering model for nucleation under isothermal conditions in the presence of phase transitions. Based on thermodynamic principles a modified model is derived where the condensation and evaporation rates may depend on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f884e2d0beb595fd2cd95f45d1626d5f
http://arxiv.org/abs/1904.00452
http://arxiv.org/abs/1904.00452
Publikováno v:
Archive for Rational Mechanics and Analysis. 221:1035-1075
We reformulate the Kohn–Sham density functional theory (KSDFT) as a nested variational problem in the one-particle density operator, the electrostatic potential and a field dual to the electron density. The corresponding functional is linear in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f9421d5d5862703a41a0340d0703a14f
https://doi.org/10.1007/s00205-016-0978-y
https://doi.org/10.1007/s00205-016-0978-y
Autor:
Thomas Blesgen
Publikováno v:
Acta Mechanica. 226:2421-2434
In this article, a numerical solution method for the finite-strain rate-independent Cosserat theory of crystal plasticity is developed. Based on a time-incremental minimization problem of the mechanical energy, a limited-memory Broyden–Fletcher–G
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d1b2e40751705d1f8ad9c4323b10ece0
https://doi.org/10.1007/s00707-015-1326-2
https://doi.org/10.1007/s00707-015-1326-2
Autor:
Thomas Blesgen, Anja Schlömerkemper
Publikováno v:
Proceedings of the Royal Society of Edinburgh: Section A Mathematics. 144:241-266
We present an extension of the Allen-Cahn/Cahn-Hilliard system that incorporates a geometrically linear ansatz for the elastic energy of the precipitates. The model contains both the elastic Allen-Cahn system and the elastic Cahn-Hilliard system as s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::47845261c3444bc8dfae9309e403ea46
https://doi.org/10.1017/s030821051200203x
https://doi.org/10.1017/s030821051200203x
Publikováno v:
Physical Review B. 93
In this work, we propose a systematic way of computing a low-rank globally adapted localized Tucker-tensor basis for solving the Kohn-Sham density functional theory (DFT) problem. In every iteration of the self-consistent field procedure of the Kohn-
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d11d653ebb28103410c3ffadcadb5827
https://doi.org/10.1103/physrevb.93.125104
https://doi.org/10.1103/physrevb.93.125104
Publikováno v:
Journal of Computational Physics. 231:2551-2564
The tensor-structured methods developed recently for the accurate calculation of the Hartree and the non-local exchange operators have been applied successfully to the ab initio numerical solution of the Hartree-Fock equation for some molecules. In t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::995369241eb7e6a06c96b5f84d70cdf2
https://doi.org/10.1016/j.jcp.2011.12.009
https://doi.org/10.1016/j.jcp.2011.12.009
Autor:
Isaac V. Chenchiah, Thomas Blesgen
Publikováno v:
Interfaces and Free Boundaries. :1-27
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bf762e51f3fb5226342d13c700dbd7b
https://doi.org/10.4171/ifb/246
https://doi.org/10.4171/ifb/246