32 citations · 51 across the 6 of their papers we have counts for
7 papers
Active set expansion strategies in MPRGP algorithm
J. Kruzik, D. Horak, M. Cermak +2
The paper investigates strategies for expansion of active set that can be employed by the MPRGP algorithm. The standard MPRGP expansion uses a projected line search in the free gra…
Efficient and flexible MATLAB implementation of 2D and 3D elastoplastic problems
Martin Čermák, Stanislav Sysala, Jan Valdman
We propose an effective and flexible way to implement 2D and 3D elastoplastic problems in MATLAB using fully vectorized codes. Our technique is applied to a broad class of the prob…
Subdifferential-based implicit return-mapping operators in Mohr-Coulomb plasticity
Stanislav Sysala, Martin Cermak
The paper is devoted to a constitutive solution, limit load analysis and Newton-like methods in elastoplastic problems containing the Mohr-Coulomb yield criterion. Within the const…
An improved return-mapping scheme for nonsmooth yield surfaces: PART I - the Haigh-Westergaard coordinates
Stanislav Sysala, Martin Cermak, Tomas Koudelka +3
The paper is devoted to the numerical solution of elastoplastic constitutive initial value problems. An improved form of the implicit return-mapping scheme for nonsmooth yield surf…
Cosmologically inspired Kastor-Traschen solution
Martin Čermák, Martin Zouhar
Kastor-Traschen (KT) type solution in a cosmological set up is studied in this article. We examine a hybrid of a KT metric and a Friedmann-Robertson-Walker-Lemaitre (FRWL) solution…
A TFETI Domain Decomposition Solver for Elastoplastic Problems
M. Čermák, T. Kozubek, S. Sysala +1
We propose an algorithm for the efficient parallel implementation of elastoplastic problems with hardening based on the so-called TFETI (Total Finite Element Tearing and Interconne…