Browsing by Subject "finite element methods"

Now showing 1 - 2 of 2

Access status: Open Access ,
Finite element implementation of nonlinear thermo-elasticity as typical coupling of diffusion and momentum balance
(2013) Putanowicz, Roman; Jaśkowiec, Jan; Pluciński, Piotr; Stankiewicz, Anna
The formulation and algorithmic aspects of nonlinear thermo-elasticity are reviewed in the paper. The attention is focused on coupling due to thermal expansion and temperature dependence of elastic model parameters, and on the consistent linearization of the ensuing nonlinear set of equations for two-field finite elements. Non-stationary heat flow, static loading and small strains are assumed. The solutions of some benchmark examples, obtained using the developed finite element environment FEMDK, are presented. The formulation has a more general application domain in the context of arbitrary coupling of a nonstationary diffusion proces and momentum balance.
Access status: Open Access ,
Grounds for the selection of software components for building FEM simulation systems for coupled problems
(2011) Putanowicz, Roman
This paper discusses rationales for selection of software components for building scientific simulation tools. Nowadays no single research team has the resources or knowledge to build non-trivial simulation software form scratch. Sharing experience about the motives behind the choice of software components and the consequences of particular decisions seems a valuable knowledge as it can help to avoid some potential traps. In the paper we discuss software selection decisions for our problem solving environment for numerical modelling of coupled problems. For selected tools we discuss pros and cons of their use and mention potential alternatives. The detailed discussion concerns implementation of a solver for thermoelasticity problems.