N. Alcheikh, C. Ayela, I. Dufour
Univ. Bordeaux, IMS Lab, Pessac, France.
Electrostrictive polymers have been of significant interest over the last years for energy harvesting. Principle is based on the conversion of a mechanical deformation into electricity. The stored energy basically depends on the mechanical strain induced into an electrostrictive polymer by the mechanical resonant vibration of a microcantilever supporting the electrostrictive layer. In this work, ...
P. Aguirre, F. Figueroa
Sensor Technik Wiedemann GmbH, Kaufbeuren, Bayern, Germany
Pressure Sensors are widely used in the automotive industry. Their main use is the dynamic monitoring of pressure inside combustion engines. To achieve a good signal accuracy, the design of pressure sensors can be improved with FEM calculations of stress and strains on the measuring cell depending on their geometry and material properties. The geometry is adapted according to a special ...
COMSOL Multiphysics® Simulations of Cracking in Point Loaded Masonry with Randomly Distributed Material Properties
A.T. Vermeltfoort, A.W.M. van Schijndel
Eindhoven University of Technology, Eindhoven, The Netherlands
This paper describes COMSOL Multiphysics® simulations of the stress and crack development in the area where a masonry wall supports a floor. In these simulations one of the main material properties of calcium silicate, its E-value, was assigned randomly to the finite elements of the modeled specimen. Calcium silicate is a frequently used building material with a relatively brittle fracture ...
University of Applied Sciences, Sankt Augustin, Germany
Multigrid methods (MG) belong to the fastest solvers for partial differential equations. The key for this is an appropriate composition of the algorithmic components [1,2,4]. The multigrid solver implemented in COMSOL Multiphysics® is analyzed with respect to components and with respect to its numerical properties. Of special interest is the question whether solving selected model problems shows ...
D. Iber, D. Menshykau, P. Germann, L. Lermuzeaux[2,3]
D-BSSE, ETH Zurich, Switzerland, SIB, Basel, Switzerland
D-BSSE, ETH Zurich, Basel, Switzerland
Department of Bioengineering, University of Nice-Sophia Antipolis, Nice, France
Morphogenesis is a tightly regulated process that has been studied for decades. Previously we developed data-based mechanistic models for a range of developmental processes with a view to integrate the available knowledge and to better understand the underlying regulatory logic. In our previous papers on simulating organogenesis in COMSOL Multiphysics® we discussed methods to efficiently solve ...
M. Puskarczyk, B. Jamieson, W. Jurczak
ABB Corporate Research Center, Kraków, Poland
The effects of sharp corners on the flux distribution in a ferromagnetic core are modeled using COMSOL Multiphysics® to determine the time-domain flux density for an applied field which is uniform in the non-corner section of the core. The frequency spectrum of the flux distribution is calculated for testing points through the corner and the effects of harmonic frequencies on the flux and loss ...
A. Bradji1, and E. Holzbecher2
1Charles University, Prague, Czech Republic
2Weierstrass Institute for Applied Analysis and Stochastics WIAS, Berlin, Germany
The convergence of numerical solutions is mainly determined by the convergence order, which quantifies the improvement of the solution when the mesh is refined. In this paper we examine various differential equations and the convergence behavior of their COMSOL Finite Element solutions. The numerically observed convergence rates are compared with theoretical results, as far as these are ...
D. Iber, D. Menshykau
D-BSSE, ETH Zurich, Basel, Switzerland
Organogenesis is a tightly regulated process that has been studied experimentally for decades. We are developing mechanistic models for the morphogenesis of limbs, lungs, and kidneys with a view to integrate available knowledge and to better understand the underlying regulatory logic. Organ size changes dramatically during development, and tissues are composed of several layers that may expand ...
RWTH Aachen University -ISEA-, Aachen, NRW, Germany
LiveLink™ for MATLAB® is used to fit the surface temperature of a battery cell within a COMSOL Multiphysics® model to the temperature measured by a thermal imaging camera. The test bench was designed and built up of ourselves to allow nondestructive thermal diffusivity measurement of Li Ion cells as a function of temperature, state of charge (SOC), state of health (SOH) and others. In that ...
University of Leeds, Leeds, United Kingdom
Nowadays all branches in modern science and industry tend to solve ever complicating problems. As the result the computational time increases considerably and it become very important to reduce the processing time and use available resources more efficiently. Parallelizing problem proves itself as efficient way to overcome the described problem. In the poster we compare different methods of ...