M
Martin Cermak
Researcher at Technical University of Ostrava
Publications - 45
Citations - 238
Martin Cermak is an academic researcher from Technical University of Ostrava. The author has contributed to research in topics: Domain decomposition methods & Finite element method. The author has an hindex of 9, co-authored 42 publications receiving 195 citations. Previous affiliations of Martin Cermak include Academy of Sciences of the Czech Republic.
Papers
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Journal ArticleDOI
Distinct environmental variables drive the community composition of mycorrhizal and saprotrophic fungi at the alpine treeline ecotone
Martina Vašutová,Martina Vašutová,Magda Edwards-Jonášová,Petr Baldrian,Martin Cermak,Pavel Cudlín +5 more
TL;DR: Whereas the community composition of mycorrhizal fungi followed the elevation gradient and most of the total variability was explained by tree height, communities of saprotrophs were shaped mainly by vegetation, soil cover and soil properties, and differed among the transects.
Journal ArticleDOI
Subdifferential‐based implicit return‐mapping operators in computational plasticity
Stanislav Sysala,Martin Cermak,Martin Cermak,Tomáš Koudelka,Jaroslav Kruis,Jan Zeman,Jan Zeman,Radim Blaheta +7 more
TL;DR: In this article, an improved form of the implicit return-mapping scheme for nonsmooth yield surfaces is proposed that systematically builds upon a subdifferential formulation of the flow rule.
Journal ArticleDOI
Discretization and numerical realization of contact problems for elastic-perfectly plastic bodies. PART II – numerical realization, limit analysis
TL;DR: In this paper, a static case of discretized contact problems for bodies made of materials obeying Hencky's law of perfect plasticity is considered, and the main interest is focused on the analysis of the formulation in terms of displacements.
Book ChapterDOI
Solving Contact Mechanics Problems with PERMON
TL;DR: PERMON as discussed by the authors is a quadratic programming algorithm based on the PETSc framework for numerical computations, which is used for contact problems of mechanics decomposed by means of a FETI-type non-overlapping domain decomposition method.
Journal ArticleDOI
Total-FETI domain decomposition method for solution of elasto-plastic problems
TL;DR: This paper uses an 'external' algorithm based on a linearization of the elasto-plastic stress-strain relation by the corresponding tangential operator and parallelize the arising linearized problem by the Total-FETI method.