A. Arevalo, I. G. Foulds
Computer, Electrical and Mathematical Sciences and Engineering Division (CEMSE), King Abdullah University of Science and Technology, Thuwal, Saudi Arabia
School of Engineering, Okanagan Campus, The University of British Columbia, Vancouver, BC, Canada
Joule heating is simulated in COMSOL Multiphysics® software for the electro-thermal micro actuator. The aim is to choose the optimal design parameters to get the largest possible in-plane displacement. The comparison between the different possible configurations will reveal the optimal parameters for the longest displacement. Our current micro fabrication process allows the actuator to use ...
Università degli Studi di Milano Bicocca, Milano, Italy
We present numerical models and field data that aid understanding of volcano-tectonic processes related to the propagation of inclined sheets and dykes under a stress field resulting from the inflation of a shallow magma chamber. Structural field data from the classical Cuillins cone-sheet complex (Isle of Skye) show that sheets have a constant average dip angle (45°), with pure dilational or ...
H. T. Mengistu, A. García-Cristóbal
Material Science Institute, University of Valencia, Valencia, Spain
The possibility to dispose of two-dimensional (2D) approaches to problems originally posed in a three-dimensional (3D) geometry is always desirable since it reduces significantly the computing resources needed for numerical studies. In this work we report on a new 2D approach called Generalized Plane Piezoelectric (GPP) problem  and apply it to the calculation of the strain and electric ...
N. H. Elabbasi, M. J. Hancock, S. B. Brown
Veryst Engineering, LLC., Needham, MA, USA
Wear is a complex phenomenon relevant to many problems involving frictional contact, such as mechanical brakes, seals, metal forming, and orthopedic implants. The rate of wear depends on the properties of the contacting materials and operating conditions. One widely used model of wear is Archard’s law, which relates the rate of material removal due to wear to the contact pressure, sliding ...
Stress State Determination in Nanoelectronic Silicon Devices Coupling COMSOL Multiphysics and a Recursive Dynamical CBED Pattern Simulation
A. Spessot[1,2], S. Frabboni, A. Armigliato, and R. Balboni
Numonyx Advanced R&D NVMTD-FTM, Agrate Brianza, Italy
National Research Center S3, CNR-INFM and Department of Physics, University of Modena e Reggio Emilia, Modena, Italy
CNR-IMM Section of Bologna, Italy
Strained technology is being promoted as the best way to extend the performance of semiconductor transistors. An inhomogeneous layer deposited on top of a silicon device can induce a strong modification in the real silicon strain state, and consequently in its electronic performance. Coupling the finite elements analysis done by COMSOL with a recursive CBED and LACBED dynamical simulation, we ...
Optimized Cantilever-to-Anchor Configurations of Buckled Cantilever Plate Structures for Transducer Applications
A. Arpys Arevalo Carreno, D. Conchouso Gonzalez, I.G. Foulds
King Abdullah University of Science and Technology, Thuwal, Mecca, Kingdom of Saudi Arabia
The mechanical simulation and analysis of the cantilever-to-anchor configuration for an out-of-plane structure used in transducer applications is reported. The polymer-based Buckled Cantilever Plate “BCP” structure, gives the ability to orient an active device from a horizontal to a vertical position, once assembled. In this paper we compare four different cantilever-to-anchor configurations: ...
BITS Pilani K K BIRLA GOA CAMPUS
The actuator comprises of a temperature sensitive composite deflecting beam, a piezoelectric substrate and a field effect transistor. The temperature rise causes an expansion in the composite beam thereby causing it to deflect. The deflecting beam impinges on the piezoelectric crystal and generating voltage. Response curves for the deflection versus temperature for temperature ranges ...
M.S. Yeoman, V. Sivasailam, T. Poole, S. Ingham
Continuum Blue, Tredomen, Ystrad Mynach, United Kingdom
JDR Cable Systems, Littleport, Cambridgeshire, United Kingdom
With the ever changing energy requirements & demand for better communication links across the planet, subsea umbilical & cable requirements are becoming more stringent. Where longer service life at a lower cost is now expected from manufacturers. In addition to this, with the need to exploit more sustainable energy sources from offshore wind & wave, where extreme weather conditions are ...
E. Gutierrez-Miravete, and J. Lavin
Rensselaer at Hartford, Hartford, CT, USA
UTC-Pratt & Whitney, East Hartford, CT, USA
Isogrid plate components are widely used in aerospace structures because of their greater stiffness to weight ratios compared with thicker plates of the same material. Isogrid plates consist of flat plates conjoined with thin ribs in specific geometric patterns. The purpose of this study was to investigate the applicability of COMSOL Multiphysics for the determination of buckling loads and modes ...
A. Leggieri, F. Di Paolo, D. Passi
University of Rome "Tor Vergata" - Department of Electronic Engineering, Rome, Italy
This paper describes the Virtual Prototyping based on a COMSOL Multiphysics® simulation for a novel Microwave Fin Taper (FT) Spatial Power Combiner (SPC) Amplifier. The analyzed system is waveguide (WG) based, and uses FT Probes to convert the energy of a rectangular WG EM fundamental mode to a Microstrip Transmission Line TEM mode, in order to be amplified by a Solid State Power ...