Here you will find presentations given at COMSOL Conferences around the globe. The presentations explore the innovative research and products designed by your peers using COMSOL Multiphysics. Research topics span a wide array of industries and application areas, including the electrical, mechanical, fluid, and chemical disciplines. Use the Quick Search to find presentations pertaining to your application area.

A Computational Approach for Optimizing the First Flyer Using COMSOL Multiphysics

A.H. Aziz[1], H. Pourzand[1], A.K. Singh[1]
[1]Pennsylvania State University, University Park, PA, USA

COMSOL Multiphysics software was used to structurally optimize the Wright brothers’ flyer. The flyer was drawn in SolidWorks, imported and meshed in COMSOL. COMSOL Solid Mechanics module was used to analyze the flyer. Four of the sixteen struts were removed yet the structural integrity of the flyer was maintained. COMSOL Laminar Flow module was used to compute the aerodynamic forces and ...

Structural Optimization of the AISHa Ion Source - new

F. Noto[1], M. Piscopo[1], L. Celona[1], D. Cittadino[1], S. Gammino[1], G. Cuttone[1], G. Gallo[1], G. Schillaci[1], C. Campisano[2], L. Lo Nigro[3], G. Costa[3], A. Campisano[4]
[1]Laboratorio Nazionale del Sud, Santa Sofia, Catania, Italy
[2]Gravina di Catania, Sicily, Italy
[3]Trinacria, Canalicchio, Catania, Italy
[4]Unico Informatica, li Battiati, Catania, Italy

Different facilities for hadrontherapy have been built in the recent past. AISHa ion source has been designed by keeping in mind the typical requirements of hospital-based facilities, where the minimization of the mean time between failures (MTBF) is a key point together with the maintenance operations which should be fast and easy. The study of some critical parts of the facilities: the ...

COMSOL Multiphysics® Software Activities Within the Research Reactors Division of Oak Ridge National Laboratory

J. D. Freels [1], P. K. Jain [1], C. J. Hurt [2], F. G. Curtis [1], M. W. Crowell [1], E. L. Popov [1],
[1] Oak Ridge National Laboratory, Oak Ridge, TN, USA
[2] University of Tennessee, Knoxville, TN, USA

INTRODUCTION Our group at ORNL started using COMSOL Multiphysics® software shortly after version 3.0 was released in the Spring of 2004. After 11 years and several releases, the application usage has grown along with number of licenses we are responsible for. This paper will broaden the scope and take a look at our past and present applications, and evaluate where we are headed with COMSOL ...

Stress Evolution due to EM in Metal Line Confined: Model and Correlation with Experiments

G. Marti [1], L. Arnaud [2], Y. Wouters [3]
[1] STmicrolectronics & Univ. Grenoble Alpes-SIMAP, France
[2] Cea-Leti Minatec, Grenoble, France
[3] Univ. Grenoble Alpes-SIMAP, Grenoble, France

Electromigration induced failure is one of the main reliability issues for the microelectronics industry. The continuous scaling of the interconnect dimensions leads to higher operating current densities and temperatures, which accentuates the electromigration failure. As a consequence, electromigration still poses challenges for the development of the new technological nodes. Electromigration ...

Thermo-Mechanical Simulation of Dissimilar Titanium Alloys Laser Welding

A. Mathieu [1], L. Weiss [2], E. Fleury [2]
[1] Laboratoire Interdisciplinaire Carnot de Bourgogne (ICB), CNRS-Université de Bourgogne Franche-Comté, Dijon, France
[2] Laboratoire d’Etudes des Microstructures et de Mécanique des Matériaux (LEM3), CNRS- Université de Lorraine, Ile du Saulcy, Metz, France

A 3D thermo-mechanical simulation was developed using COMSOL Multiphysics software in order to predict distortion of a welded dissimilar titanium alloys structure. An angular distortion and a longitudinal shrinkage are predicted in agreement with those obtained experimentally.

Multiphysics and Simulation of MEMS based Bolometer for Detecting the Radiations in Nuclear Power Plants

K. Umapathi[1], S. Swetha[2], K. Ranjitha[2], K. Vinodh[2], K. Deebiga[1], R. Harisudarsan[1]
[1]United Institute of Technology, Coimbatore, TamilNadu, India
[2]Sri Krishna College of Engineering and Technology, Coimbatore, Tamil Nadu, India

High performance micro sensors are important to detecting special nuclear materials radiations in different fields to save the globe. This paper is mainly focused on to develop a MEMS based bolometer for detecting the nuclear radiation to provide the high security in Nuclear power Plants. A thermally sensitive micro metal plate is designed and placed on a substrate through micro thermal link. ...

High-Resolution FSI Modeling of a High-Aspect Ratio Involute Flow Channel in the HFIR at ORNL

A. I. Elzawawy [1], J. D. Freels [2], F. G. Curtis [2, 3],
[1] Vaughn College of Aeronautics and Technology, East Elmhurst, NY, USA
[2] Oak Ridge National Laboratory, Oak Ridge, TN, USA
[3] University of Tennessee, Knoxville, TN, USA

The high flow rate within the HFIR cooling water flow channel causes the fuel plates to deflect which in turn, changes the coolant flow characteristics. This nonlinear feedback loop between the coolant and the fuel plate is the focus of the present simulation of the fluid-solid interaction between the coolant flow and the fuel plates to accurately predict the plate’s deflection using the Fluid ...

Bridge Scour Detection of the Feather River Bridge in Yuba City, CA through the use of Finite Element Modeling and Infrasound

A. Jordan [1], D. Whitlow [1], S. McComas [1], M. H. McKenna [1],
[1] U.S. Army Engineer Research and Development Center, Vicksburg, MS, USA

Ongoing studies by the US Army Engineer Research and Development Center (ERDC) are investigating infrasound as a means of persistent monitoring and scour detection at bridges through analysis of the frequency change of the structure caused by altered boundary conditions. Bridges resonate frequencies which are typically in the infrasound passband (0.1-20 Hz range). A recent field deployment ...

Numerical Characterizations of Visco-Plastic Behaviour of the TA6V with Metallurgic Phase Change

V. Bruyere [1], C. Touvrey [2], P. Namy [1],
[1] SIMTEC, Grenoble, France
[2] CEA DAM, Valduc, Is-sur-Tille, France

In order to predict the residual mechanical state of assemblies during pulsed laser welding, mechanical and metallurgical behaviors of materials need to be precisely characterized. Based on experimental data and analyses [1], a numerical model is developed in COMSOL Multiphysics® software to take into account the predominant effects identified for TA6V. First of all, the metallurgic behavior ...

Design and Analysis of Microcantilevers for Sensor Applications

R. Phadke [1], R. Pramodhini [1], A. Tiwari [2],
[1] Nitte Meenakshi Institute of Technology, Bengaluru, Karnataka, India

In this report, we present the design and analysis of microcantilevers of various shapes and materials for different applications. Here we investigate the sensitivity i.e. amount of bending of the cantilever due to same amount of force applied to each of the shape and the respective material using COMSOL Multiphysics software. In this context, we are restricted to the use of microcantilevers in ...