Technical Papers and Presentations

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.

An Analysis of Plunger Temperature during Glass Parison Pressing

P. Ngankeu[1], and E. Gutierrez-Miravete[2]

[1]EMHART Glass Research Inc, Windsor, CT, USA
[2]Rensselaer at Hartford, Hartford, CT, USA

The press and blow (P&B) process is widely used to produce glass containers. While the P&B process has demonstrated to be capable of reducing container weight by as much as 33%, it can also induce the formation of micro-checks that weaken container strength. This paper presents a model of the heat transfer due to the intermittent contact of glass with the plunger during several pressing ...

Numerical and Experimental Analysis of Natural and Mixed Convection Heat Transfer for Vertically Arranged DIMM

G. Petrone, and G. Cammarata
University of Catania, Catania, Italy

 It is commonly recognized that careful thermal design of electronic equipments represents an unavoidable pre-production step in order to ensure reliability and performance of those components during their functioning. This paper mainly concerns a comparison between experimental and numerical results obtained in studying thermal dissipation in natural and mixed convection conditions for RAM ...

A Flexible Scheme For Numerical Homogenisation In Linear Elasticity

A. Gerisch[1], S. Tiburtius[1], Q. Grimal[2], and K. Raum[3]
[1]Technische Universität Darmstadt, Germany
[2]Université Pierre et Marie Curie Paris VI, France
[3]Charité-Universitätsmedizin Berlin, Germany

Musculoskeletal mineralised tissues (MMTs), like bone or tendon, are a prime example of naturally occuring, hierarchically structured material. They display a great variety in mechanical function but are all based on essentially the same building block: the mineralised collagen fibril (100 nanometer in diameter). This building block is arranged in various spatial structures across many length ...

Modeling of Chemo-Mechanical Coupled Behavior of Cement Based Material

D. Hu[1], F. Zhang[2], H. Zhou[3], and J. Shao[1]
[1]LML, UMR8107, CNRS, University of Lille I, Lille, France
[2]School of Civil Engineering and Architecture, Hubei University of Technology, Wuhan, China
[3]State Key Laboratory of Geomechanics and Geotechnical Engineering, Institute of Rock and Soil Mechanics, Chinese Academy of Sciences, Wuhan, China

A lixiviation-mechanical coupled model is developed for fiber reinforced concrete within this framework; both the influence of chemical degradation on short and long term mechanical behavior and the influence of mechanical loading on the diffusion coefficient can be considered. The elastic mechanical properties are written as function of chemical damage. A Drucker–Prager typed criterion with ...

Assessment of Anterior Spinal Artery Blood Flow following Spinal Cord Injury

M. Alshareef[1], A. Alshareef[2], V. Krishna[3], M. Kindy[3], T. Shazly[4]
[1]College of Medicine, Medical University of South Carolina, Charleston, SC, USA
[2]Department of Biomedical Engineering, Duke University, Durham, NC, USA
[3]Department of Neurosurgery, Medical University of South Carolina, Charleston, SC, USA
[4]Department of Mechanical Engineering, University of South Carolina, Columbia, SC, USA

The incidence of spinal cord injury (SCI) in the US is approximately 12,000 individuals annually, due to various forms of trauma and disease. Diminished flow over a prolonged period of time can cause permanent spinal damage. We constructed a 3D finite element model of the spinal cord to examine the role of compressive loading on spinal blood flow. It was found that the type of forces on the ...

Elastoplastic Modeling and Experimental Verification of Solder-Substrate Interaction - new

C. Karl[1], C. Slater[1], M. Strangwood[1], K. Tank[2], S. O'Connor[2]
[1]University of Birmingham, Birmingham, UK
[2]Strip Tinning Ltd, Birmingham, UK

Solders are typically used to join similar or dissimilar metals, referred to as substrates. In some cases solders are also used to join completely different classes of materials. For example, a joint between copper busbar and silicon solar cell represents a set of dissimilar substrates. In the formation of a solder-substrate couple, the system must have been subjected to at least a single ...

On the Geometric Nonlinearity Effects of Polymeric Plates on Structural Performance - new

K. Vakkund[1], R. C. Thiagarajan[1]
[1]ATOA Scientific Technologies Pvt. Ltd., Bengaluru, Karnataka, India

Polymer sheets are widely used for glazing and roofing structural applications. The primary design requirements of these polymeric sheets are to resist uniformly distributed wind loading. Conventional building materials such as steel and glass plates are relative stiffer compared to polymeric sheets. The deflection of high stiff plates is about an order lower than polymeric plates. Polymeric ...

Simulation of Cellular Traction Force Based Deflection of PDMS Micropillars - new

J. Wala[1], D. Maji[1], S. Dhara[1], S. Das[1]
[1]Indian Institute of Technology Kharagpur, Kharagpur, West Bengal, India

Cells are complex entities which not only passively sense external stimuli (viz. chemical, optical or mechanical) but also interact with extracellular matrix (ECM) by regulating cellular behavior such as growth, proliferation, migration, etc. Monitoring cell growth and migration of adherent cells becomes a crucial factor in determining cell-cell and cell-substrate interaction, important for ...

Modeling and Simulation of High Sensitivity CMOS Pressure Sensor Using Free Boundary Circular Diaphragm Embedded on Ring Channel Shaped MOSFET - new

S. Joy[1], T. Tom[1]
[1]Rajagiri School of Engineering and Technology, Kochi, Kerala, India

Sensors have diverse applications ranging from medical field to space explorations. They convert physical parameters such as temperature, pressure, humidity etc: - into an electrical output. The discovery of piezoresistivity property of silicon and germanium led to miniaturization of pressure sensors. Improvement in the sensitivity is the major factor to be considered while designing pressure ...

A predictive model for the micro-porosity quantitative in Al-Si alloy

Battaglia, J.L., Rozot, J.M.
France

The fatigue is the most important criterion for the securities parts (brake system for example). The increasing use of shaped cast aluminium in the security automotive parts has focused interest on the fatigue of theses alloys. The specific foundry software use empirical laws that do not fit with the reality, above all concerning the aluminium alloys. We proposed a new physical parsimonious ...

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