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Voyez comment la modélisation et la simulation sont utilisées par les industries La modélisation et la simulation multiphysiques pilotent l'innovation dans tous les grands secteurs d'activité et dans le monde universitaire — comme en témoignent les nombreuses utilisations présentées dans des articles et des posters techniques présentés par des ingénieurs, chercheurs et scientifiques à la Conférence COMSOL chaque année. Inspirez-vous des récents proceedings réunis ci-dessous, ou, pour trouver les présentations les plus intéressantes dans votre domaine d'intérêt, utilisez la recherche rapide.

Consultez les proceedings de la Conference COMSOL 2024

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Universal Dielectric Response of Atmospheric Ice Using COMSOL Multiphysics®

U.N. Mughal[1], M.S. Virk[1], K. Zaman[1]
[1]Narvik University College, Narvik, Norway

Heterogeneous materials with different phases, are conductive and insulating (dielectric), and are physically present in different natural materials as e.g. atmospheric ice. Jonscher’s proposed ‘universal dielectric response’ is not sufficient for such materials, as it only reflects ... En savoir plus

Generation of Enhanced LSPR Field in Periodically Varying Height Metal Nano-pillars

N. Chamuah [1], P. Nath [1],
[1] Tezpur University, Sonitpur, Assam, India

Present work demonstrates a detail simulation results on enhanced generation of localized surface plasmon resonance (LSPR) field condition in a periodically varying height metal nano-pillars. Periodically varying height metal nanopillar provides enhanced LSPR field conditions than ... En savoir plus

Finite Element Modeling for the Mechanical Behavior of Silicon Diaphragms Using COMSOL Multiphysics^®

J. Ren[1], M. Ward[1], Peter Kinnell[2], and Russell Cradock[2]

[1]School of Mechanical Engineering, University of Birmingham, Birmingham, United Kingdom
[2]GE Druck Limited, Fir Tree Lane, Leicester, United Kingdom

The silicon diaphragm is one of the most common structures in Micro-Electromechanical Systems (MEMS). However, it is susceptible to creep deformation at elevated temperatures. This paper presents a transient finite element model which simulates the mechanical behavior of the ... En savoir plus

Improvement of a Steady State Method of Thermal Interface Material Characterization by Use of a Three Dimensional FEA Simulation in COMSOL

B. Sponagle[1], D. Groulx[1]
[1]Department of Mechanical Engineering, Dalhousie University, Halifax, NS, Canada

An FEA model of a steady state thermal interface material characterization apparatus was created in COMSOL Multiphysics 4.2a. This model was then fitted using three convection heat loss coefficients and the conductance of the TIM layer to a set of experimental measurements made using a ... En savoir plus

Fracture on Circuit Board Internal Layers Due to Thermal Stress on Soldered Pins

F. Figueroa[1], P. Aguirre[1]
[1]Sensor Technik Wiedemann GmbH, Kaufbeuren, Germany

Circuit board failures are often ignored because they could be impreceptible. This simulation examines how internal layers around a soldered pin via subject to temperature changes during the soldering process are affected, show the forces involved and determine breaking points. A 2D ... En savoir plus

Design and Analysis of Multilayered MEMS Microphone Using COMSOL Multiphysics®

Saranya srinivasa raghavgan[1], Sowmya Srinivasa raghavan[1], Shruti Venkatesh[1]
[1]Rajalakshmi Engineering College, Chennai, India

In this project, we report a design of MEMS microphone that is based on the application of porous silicon in improving the sensitivity of bulk micro machined capacitive pressure sensors. The property of a low Young’s modulus of porous silicon and its dependence on porosity have been ... En savoir plus

CFD Analysis of Loss Of Vacuum Accident for Safety Application in Experimental Fusion Reactor Facility

C. Bellecci[1], P. Gaudio[1], I. Lupelli[1], A. Malizia[1], M.T. Porfiri[2], R. Quaranta[1], and M. Richetta[1]

[1]EURATOM, Faculty of Engineering, University of Rome “Tor Vergata”, Roma, Italy
[2]ENEA Nuclear Fusion Tecnologies, Frascati, Roma, Italy

In an experimental nuclear fusion facility dust is generated both during normal machine operations and by macroscopic erosion of the plasma facing materials due to intense thermal loads. This dust can be mobilized by air ingress in case of LOVA (Loss of Vacuum Accident) threaten safety ... En savoir plus

Modeling of Near-Field Ultrasonic Levitation: Resolving Viscous and Acoustic Effects

I .F. Melikhov [1], A. S. Amosov [1], S. A. Chivilikhin [2],
[1] Corning Scientific Center, Saint Petersburg, Russia
[2] ITMO University, Saint Petersburg, Russia

Ultrasonic levitation is a novel technology for contactless handing of various objects. It is already used in various manufacturing processes where it is important to keep untouched surface. In this paper we introduce a model of so-called near-field ultrasonic levitation which allows ... En savoir plus

Tunable MEMS Capacitor for RF Applications

H. S. Shriram[1], T. Nimje[1], D. Vakharia[1]
[1]BITS Pilani, Rajasthan, India

Radio Frequency MEMS devices have emerged to overcome the problem of high losses associated with semiconductors at high frequencies. A tunable MEMS capacitor is a micrometre-scale electronic device whose capacitance is controlled through different actuation mechanisms which govern the ... En savoir plus

Numerical and Experimental Study of a Concentrated Indentation Force on Polymer Matrix Composites

V. Antonucci[1][2], M. Esposito[1], R. Marzella[2], and M. Giordano[1][2]
[1]Institute for Composite and Biomedical Materials, CNR, Portici, NA, Italy
[2]Imast, Portici, NA, Italy

A quasi static indentation test on a laminate composite has been investigated numerically and experimentally. In particular, the test has been implemented by COMSOL Multiphysics® and optimizing the Finite Element and mesh. In addition, the numerical strain results have been validated by ... En savoir plus

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