Zobrazeno 1 - 10
of 15
pro vyhledávání: '"Mirjam Walloth"'
Publikováno v:
Non-standard Discretisation Methods in Solid Mechanics ISBN: 9783030926717
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3425e9a029a5ed8ab7eabae6f5e44852
https://doi.org/10.1007/978-3-030-92672-4_8
https://doi.org/10.1007/978-3-030-92672-4_8
Autor:
Mirjam Walloth
Publikováno v:
IMA Journal of Numerical Analysis. 40:1937-1971
We present a new residual-type a posteriori estimator for a quasi-static Signorini problem. The theoretical results are derived for two- and three-dimensional domains and the case of nondiscrete gap functions is addressed. We derive global upper and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e4a4d7047a8031629a2cd67aa3c7fa6a
https://doi.org/10.1093/imanum/drz023
https://doi.org/10.1093/imanum/drz023
Autor:
Mirjam Walloth, Winnifried Wollner
Within this article, we develop a residual type a posteriori error estimator for a time discrete quasi-static phase-field fracture model. Particular emphasize is given to the robustness of the error estimator for the variational inequality governing
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c16553f307f493c829e56844e17a177c
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030558734
ENUMATH
ENUMATH
This work presents a new adaptive approach for the numerical simulation of a phase-field model for fractures in nearly incompressible solids. In order to cope with locking effects, we use a recently proposed mixed form where we have a hydro-static pr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c026bf6da98d77e8d2cbb03e7bcd07a4
https://doi.org/10.1007/978-3-030-55874-1_118
https://doi.org/10.1007/978-3-030-55874-1_118
Autor:
Mirjam Walloth
Publikováno v:
Applied Numerical Mathematics. 135:276-296
We present a new residual-type a posteriori error estimator for the discontinuous finite element solution of contact problems. The theoretical results are derived for two and three-dimensional domains and arbitrary gap functions. The estimator yields
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1cd83f03e86ba95328e66f8091fffdc
https://doi.org/10.1016/j.apnum.2018.09.002
https://doi.org/10.1016/j.apnum.2018.09.002
Publikováno v:
GAMM-Mitteilungen. 43
In this work, we consider adaptive mesh refinement for a monolithic phase-field description for fractures in brittle materials. Our approach is based on an a posteriori error estimator for the phase-field variational inequality realizing the fracture
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::518749d9ed2c1f5069dcc84634544d50
https://doi.org/10.1002/gamm.202000003
https://doi.org/10.1002/gamm.202000003
Autor:
Mirjam Walloth
Publikováno v:
PAMM. 18
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4de1bcbbe4e445bacb8d42704dd20f93
https://doi.org/10.1002/pamm.201800267
https://doi.org/10.1002/pamm.201800267
Publikováno v:
Numerische Mathematik. 130:151-197
We derive a new a posteriori error estimator for the Signorini problem. It generalizes the standard residual-type estimators for unconstrained problems in linear elasticity by additional terms at the contact boundary addressing the non-linearity. Rem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c07769af7c4f09af40bcbf7115796f5b
https://doi.org/10.1007/s00211-014-0655-8
https://doi.org/10.1007/s00211-014-0655-8
Autor:
Mirjam Walloth, Rolf Krause
Publikováno v:
Applied Numerical Mathematics. 62:1393-1410
The straightforward application of classical time discretization schemes to dynamic contact problems often leads to instabilities at the contact boundary. These show up as artificial oscillations in the contact stresses and displacements at the conta
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1a87a033c105d888c0a553d6253bb6ac
https://doi.org/10.1016/j.apnum.2012.06.014
https://doi.org/10.1016/j.apnum.2012.06.014
Autor:
Mirjam Walloth
Publikováno v:
PAMM. 17:767-768
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::09f2786566639751f51a84e25fcf2892
https://doi.org/10.1002/pamm.201710351
https://doi.org/10.1002/pamm.201710351