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.

Designing and Simulating the Performance Analysis of Piezoresistive Fluid Flow Pressure Sensor

K. PraveenKumar[1], P. Suresh[1], K. Subash[1], M. Alagappan[1], A. Gupta[1]
[1]PSG College of Technology, Coimbatore, Tamil Nadu, India.

In this work, we present the performance analysis of novel micro machined Piezoresistive fluid flow pressure sensor using COMSOL Multiphysics. The principle of the sensing mechanism is based on the deflection of four sensing layers embedded on a thin membrane. The fluid passes through the layer causes the deflection of the sensing layer which measures the pressure of the fluid. The following ...

Thermomechanical Effects of the Packaging Molding Process on the Chip in Integrated Circuits - new

N. Semmar[1], M. Fournier[1], P. S. Alleaume [2], A. Seigneurin [3], , ,
[1]GREMI-UMR7344, CNRS/University of Orléans, Orléans, France
[2]Collegium Sciences et Techniques, Orléans, France
[3]ST Microelectronics Tours SAS, Tours, France

Usually, in integrated circuits, the chip is brazed on leadframe and then, a polymer resin is molded around to create the packaging. On the first hand, the molding process at high temperatures will induce thermomechanical stress on the chip. As the leadframe, the chip and the braze have all different thermoelastic properties, these stress can be critical for the chip connections. To ...

Sensitivity of the Compression-Softening Effect to Mesh Imperfections in Compressed Flexures - new

S. Saha[1], A. Ramirez[1], C. DiBiasio[2], M. Culpepper[1]
[1]Massachusetts Institute of Technology, Cambridge, MA, USA
[2]Charles Stark Draper Laboratory Inc., Cambridge, MA, USA

Introduction: Flexures are low-cost bearings that are capable of providing motion guidance with high repeatability and low friction (Figure 1). However, applications of flexure bearings are often limited by their low range. This is because motion guidance in flexures is provided by bending/flexing of members; thus, range is limited by the bending stiffness. As the bending stiffness can be ...

Topology Optimization of Lithium-Ion Battery Electrode Microstructure Morphology for Reduction of Damage Accumulation and Longevity of Battery Life - new

P. Clarke[1], R. Abedi[1]
[1]University of Tennessee Space Institute, Tullahoma, TN, USA

The ubiquitous commercial use of Lithium-Ion batteries (LIBs) has increased interest in their implementation into efficient energy storage systems for clean and renewable power sources and the electrical transportation industry. Unfortunately, LIBs are not yet technological mature to meet various commercial demands. Consider the following challenges for example,: (1) lower than desired effective ...

Multiphysics Applications for Sustainable Engineering and Industrial Processes

S. Savarese [1], L. Kremer [1], C. Sanjeu [1]
[1] Armelio, Les Ulis, France

While addressing the pressing need for better, more sustainable engineering and production improvements, Armélio has identified that easy-to-use, customized, multiphysics applications would fulfill customer requirements. Hence, we now design and deliver COMSOL Multiphysics® apps bringing multiphysics simulation into research labs and production plants. Applications range from heat transfer ...

Modeling of Viscoelastic Phenomena in Concrete Structures

A. Pomarico [1], G. Roselli [1], D. Caltabiano [2],
[1] STMicroelectronics, Lecce, Italy
[2] STMicroelectronics, Agrate, Italy

A growing demand is recently emerging of sensors to be integrated in the concrete in order to measure some critical parameters, such as humidity and temperature and the internal pressure of the material. For example, by monitoring the pressure in various strategic points of the structure and their evolutions over time it is possible to understand the health of the structure and the needs for ...

COMSOL Multiphysics® Software: Simplifying Workflow and Promoting Innovations in Nuclear Engineering at ORNL

P. K. Jain [1], J. D. Freels [1],
[1] Oak Ridge National Laboratory, Oak Ridge, TN, USA

At Oak Ridge National Laboratory (ORNL), COMSOL Multiphysics® software has become a preferred software for certain multiphysics applications in nuclear engineering. This presentation will highlight some of the ongoing activities in the following areas: (1) Highly enriched uranium (HEU) to low enriched uranium (LEU) conversion of the High Flux Isotope Reactor (HFIR), (2) New and improved safety ...

Nature-Inspired Surfaces and Engineering Applications Using COMSOL Multiphysics®

R. C. Thiagarajan [1], P. Asutosh[1],
[1] ATOA Scientific Technologies Pvt Ltd, Whitefield, Bangalore, Karnataka, India.

Engineering design has long been dominated by orthogonal Cartesian principles. Nature inspired equation based mathematical surfaces are under renewed interest due to their innovative design potential and practical viability by 3D printing. In this paper, the parametric surface modelling feature of COMSOL Multiphysics® is leveraged for developing engineering structures from equation based ...

Lumped Element Multimode Modeling of Balanced-armature Receiver with COMSOL Multiphysics® Software

Wei Sun [1],
[1] Institute of Acoustics, Tongji University, China

For the lack of higher order modes, lumped element (LE) models currently used may be insufficient to predict the system of balanced-armature receiver (BAR). We develop a LE multimode model for BAR in the frequency domain based on the techniques of mode decomposition, truncation, and selection via COMSOL Multiphysics® software. The validation is made by comparing with both the corresponding ...

A Simplified Approach to the Contact in Thermo-mechanical Analysis of Refractory Linings

Y. Kaymak
VDEh Betriebsforschungsinstitut GmbH
Düsseldorf, Germany

The geometrical design and material choice for a refractory lining requires a good understanding of its thermo-mechanical behavior. Design engineers clearly need a tool for fast and efficient computation of thermo-mechanical state of refractory linings under various conditions. However, standard simulation models and their solutions suffer as the linings are composed of many refractory blocks in ...