the high costs of experimental works on the nanocomposites can be reduced through implementation of analytical and numerical studies. to study the effect of impact energy on the nanocomposites, a nanocomposite composedof polyurethane and clay nanoparticles is selected as a case study. the finite element modeling is carried out using the ansys software, and the impact analysis is performed using...

We present m thts paper the application of the mortar element method m the case where fini te element methods are used in each subdornains The novelty is m the posstbility of dealing with tenahedra for thefimte element mesh Thts paper thus complètes the analysis of the mot tai element methods that allows for couphng different spectral and/or finite element methods in adjascent mbdomains in a fl...

Die Planung einer endovaskulären Ausschaltung eines Aortenaneurysmas (EVAR) mittels Stentgraft kann perspektivisch anhand eines Finite-Elemente-Modells unterstützt werden. Ziel ist hierbei die Abbildung des Stentgraftverhaltens im Gefäß, wodurch eine quantitative Bewertung verschiedener Stentgraftprodukte im Kontext mit patientenspezifischem Gefäß möglich ist. Eine bedarfsorientierte Modellentw...

Im Beitrag wird ein Konzept für den Entwurf und die Simulation intelligenter (adaptiver, smarter) Leichtbaustrukturen vorgestellt, die in der Lage sind, selbsttätig störende Schwingungen infolge äußerer Erregungen zu unterdrücken. Dazu werden piezoelektrische Folienoder Fasermodule als Sensoren und/oder Aktuatoren in die Struktur integriert und über einen Regler so verbunden, dass das gewünscht...

This paper presents a new and efficient method for computing the flow of a non-Newtonian fluid. The approach is based on two independent concepts: Time-dependent simulation of viscoelastic flow: A new decoupled algorithm, presented in P. Saramito, Simulation numerique d'ecoulements de fluides viscoelastiques par eRments finis incompressibles et une methode de directions alternees; applications,...

saccharomyces cerevisiae (baker’s yeast) can exhibit sustained oscillations during the operation in a continuous bioreactor that adversely affects its stability and productivity. because of heterogeneous nature of cell populations, the cell population balance equation (pbe) can be used to capture the dynamic behavior of such cultures. in this work, an unstructured-segregated model is used for d...

Displacement finite element models of various beam theories have been developed using traditional finite element interpolations (i.e., Hermite cubic or equi-spaced Lagrange functions). Various finite element models of beams differ from each other in the choice of the interpolation functions used for the transverse deflection w, total rotation φ and/or shear strain γxz, or in the integral form u...

a non-linear finite element model could be a useful tool in the development of a method of predicting soil pressure-sinkage behaviour, and can be used to investigate and analyze soil compaction. this study was undertaken to emphasize that the finite element method (fem) is a proper technique to model soil pressure-sinkage behaviour. for this purpose, the finite element method was used to model ...