Search Results - subject:"Contact problems"

Approximation and numerical realization of 3D quasistatic contact problems with Coulomb friction

Haslinger, J.; Kučera, R.; Vlach, O.; Baniotopoulos, C.C. - In: Mathematics and Computers in Simulation (MATCOM) 82 (2012) 10, pp. 1936-1951

contact problems with Tresca friction. Numerical experiments show the efficiency of the proposed method. … coefficient of friction which may depend on the solution. After a time discretization we obtain a system of static contact … problems with Coulomb friction. Each of these problems is solved by the T-FETI domain decomposition method used in auxiliary …

Persistent link: https://www.econbiz.de/10011050232

Projector preconditioning and transformation of basis in FETI-DP algorithms for contact problems

Jarošová, Marta; Klawonn, Axel; Rheinbach, Oliver - In: Mathematics and Computers in Simulation (MATCOM) 82 (2012) 10, pp. 1894-1907

contact problems are considered. The first one is a preconditioning technique by a conjugate projector, where the Lagrange …

Persistent link: https://www.econbiz.de/10011050265

FETI-based algorithms for modelling of fibrous composite materials with debonding

Dostál, Zdeněk; Horák, David; Vlach, Oldřich - In: Mathematics and Computers in Simulation (MATCOM) 76 (2007) 1, pp. 57-64

We show how we can exploit our recently proposed algorithms for the solution of contact problem of elasticity to the 2D analysis of the interfacial debonding of samples that consist of several fibres embedded in a homogeneous matrix, aligned in the longitudinal direction. The performance of the...

Persistent link: https://www.econbiz.de/10011051044

Domain decomposition method for contact problems with small range contact

Daněk, Josef - In: Mathematics and Computers in Simulation (MATCOM) 61 (2003) 3, pp. 359-373

A non-overlapping domain decomposition algorithm of Neumann–Neumann type for solving variational inequalities arising from the elliptic boundary value problems in two dimensions with unilateral boundary condition is presented. We suppose that boundary with inequality condition is...

Persistent link: https://www.econbiz.de/10011050204

Numerical simulation of some biomechanical problems

Nedoma, J.; Klézl, Z.; Fousek, J.; Kestřánek, Z.; … - In: Mathematics and Computers in Simulation (MATCOM) 61 (2003) 3, pp. 283-295

The paper is concerned with the numerical solution of non-linear conservation laws, and the contribution biomechanical models of spine and of loaded wrist are formulated and analysed. The models are based on a contact problem in non-linear elastic rheology. The stress–strain relation is...

Persistent link: https://www.econbiz.de/10011050340

Numerical analysis of the loosened total hip replacements (THR)1Supported by the GA AS CR grant No. 308-95-0304.1

Nedoma, J.; Bartoš, M.; Hornátová, H.; Kestřánek, Z.; … - In: Mathematics and Computers in Simulation (MATCOM) 50 (1999) 1, pp. 285-304

The paper deals with mathematical simulation of a loosened hip joint, simulation of mechanical processes taking place during static and dynamic burdening and their mathematical description. The main result of the paper consists of the existence theorem and the analysis of the loosened total hip...

Persistent link: https://www.econbiz.de/10011050528