[PDF] Top 20 Numerical methods for dynamic contact and fracture problems

... etc...) and fracture processes (brittle fracture, ductile fracture, fatigue, dynamic fracture) and they can be easily enriched with more complex physical behaviors ... Voir le document complet

... Unilateral contact; Nonmatching meshes; Mortar ®nite element method; Global contact condition; Local contact condition ...Introduction and notations In ®nite element procedures solving ... Voir le document complet

... known numerical tech niques. As a return, we recall that we aim for formulating an algo rithm that is able to solve challenging dynamic contact problems with complex local ...knowledge ... Voir le document complet

... plants, and, by extension, the computation of econom- ically optimal investment strategies in new power plants in the ...problem for which every policy modification generates a corresponding ...combines ... Voir le document complet

... brittle fracture, where the internal length  is then interpreted as a mate- rial parameter which contributes to the fracture or damage behavior of ...sustain and hence introduces additional ... Voir le document complet

... frictionless contact, thermal strain imposed, contact arc ...cept for contact arc boundaries where a local quasi-hierarchical refinement is ...mesh and are localized around the ... Voir le document complet

... probability) and the computer science (reinforcement learning) communities to propose and compare several algo- rithms based on dynamic programming (DP), and deep neural networks (DNN) ... Voir le document complet

... flow problems of practical interest occur in geometrically complex ...grid for a complex geometry is often a very challenging and time-consuming ...alternative for simulating flows in or ... Voir le document complet

... flow problems of practical interest occur in geometrically complex ...grid for a complex geometry is often a very challenging and time-consuming ...alternative for simulating flows in or ... Voir le document complet

... model and present the system of equations describing the evolution of the new un- knowns; two variants are proposed, based upon various ...energy and momenta conserving time discretization schemes ... Voir le document complet

... semi-discretizations, for example with finite element methods, which give a problem in time which is a measure differential inclusion (see ...5 and 6, numerical schemes do not necessarily ... Voir le document complet

... PF methods became very popular in the last few years and not only in the field of fracture ...ing numerical technique. Regarding fracture mechanics, applications to brittle materials ... Voir le document complet

... microenvironment and anti-cancer ...a dynamic source of therapeutic resistance that needs to be accounted for when investigating effective anti-cancer therapeutic protocols ...108]. For ... Voir le document complet

... state and initial decision are, the remaining decisions must constitute an optimal policy with regard to the state resulting from the first ...named Dynamic Programming Equation or Bellman ...problem ... Voir le document complet

... solution for our numerical results from Chapter ...the numerical solution at the faces and cells barycenters of an hexagonal mesh (depicted in ...The contact boundary corresponds to the ... Voir le document complet

... Conclusions and perspectives During the present thesis we have studied a fictitious domain method to simulate the interaction between valves and an incompressible viscous ...of numerical simulations, ... Voir le document complet

... problem, and a very difficult ...size and initial ...waves and spiral shocks are used as the seed for ...disk and possibly the galactic ...Thermal and gravitational instabilities ... Voir le document complet

... generator and the free Non-Associative Permutative algebra with one generator [14], [22], and moreover there are two other pre-Lie structures on T , of operadic nature, which show strong compatibility with ... Voir le document complet

... Although solving the linear program (5.3.12) generates pareto-optimal cuts for Benders' method applied to general mixed integer programs, the special structure of facility locat[r] ... Voir le document complet

... Since a fluid/structure coupled analysis requires much modelling time, the analysist will strive to use simplified fluid models ; based on a simplification of the fluid [r] ... Voir le document complet