Prohlížení Publikační činnost ČVUT dle autora "Valdman J."
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Elastoplastic Deformations of Layered Structures
Autor: Drozdenko D.; Knapek M.; Kružík M.; Mathis K.; Valdman J.
(Birkhäuser, 2022)We formulate a large-strain model of single-slip crystal elastoplasticity in the framework of energetic solutions. The numerical performance of the model is compared with laboratory experiments on the compression of a stack ... -
Fast MATLAB assembly of FEM matrices in 2D and 3D: Nodal elements
Autor: Valdman J.
(Elsevier Science, 2013)We propose an effective and flexible way to assemble finite element stiffness and mass matrices in MATLAB. The major loops in the code have been vectorized using the so called array operation in MATLAB, and no low level ... -
Linearization and computation for large-strain visco-elasticity
Autor: Dondl P.; Jesenko M.; Kruzik M.; Valdman J.
(AIMS Press, 2022)Time-discrete numerical minimization schemes for simple visco-elastic materials in the Kelvin-Voigt rheology at high strains are not well posed because of the non-quasi-convexity of the dissipation functional. A possible ... -
On the SCD semismooth* Newton method for generalized equations with application to a class of static contact problems with Coulomb friction
Autor: Gfrerer H.; Mandlmayr M.; Outrata J.; Valdman J.
(Springer International Publishing, 2023)In the paper, a variant of the semismooth* Newton method is developed for the numerical solution of generalized equations, in which the multi-valued part is a so-called SCD (subspace containing derivative) mapping. Under ... -
Vectorized MATLAB Implementation of the Incremental Minimization Principle for Rate-Independent Dissipative Solids Using FEM: A Constitutive Model of Shape Memory Alloys
Autor: Frost M.; Valdman J.
(MDPI AG, 2022)The incremental energy minimization principle provides a compact variational formulation for evolutionary boundary problems based on constitutive models of rate-independent dissipative solids. In this work, we develop and ...