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Thermo-mechanical Modeling of Pu-238 Production Target at HFIR

C.J. Hurt [1], J.D. Freels [2],
[1] University of Tennessee, Knoxville, TN, USA
[2] Oak Ridge National Laboratory, Oak Ridge, TN, USA

The production model in the COMSOL Multiphysics® software makes use of the most up-to-date PIE data, material property inputs, and modeling methodology. The fully coupled thermo-mechanical equations are solved over the entire domain, significantly increasing the degrees of freedom required for a solution, in addition to several other improvements in the computational methodology of the model. ...

Computational Analysis of the Mechanical and Thermal Stresses in a Thin Film PProDOT-Based Redox Capacitor

J. Sotero-Esteva[1], M. Rosario-Canales[2], P. Gopu[3], and J. Santiago-Avilés[3]

[1]Department of Mathematics, University of Puerto Rico at Humacao, Humacao, PR
[2]Department of Chemistry, University of Pennsylvania, Philadelphia, PA, USA
[3]Department of Electrical and Systems Engineering, University of Pennsylvania, Philadelphia, PA, USA

Among the several types of capacitors, the double-layer and redox types have gathered increasing attention to address some of the heavy power demands of modern technology. In redox capacitors, charge is stored chemically via oxidation/reduction processes in the active materials like electroactive polymers (EAPs) or metal oxides. This work investigates the stresses and heat flux of the electrode ...

Influência da Camada de Ar Sobre a Deformação de uma Embalagem de Líquido com Cartão Tipo LPB - new

I. Neitzel[1], K. B. Matos[1], L. R. Pesch[1]
[1]Faculdade de Telêmaco Borba - FATEB, Telêmaco Borba, Paraná, Brasil

As embalagens de produtos alimentícios são hoje em dia predominantemente feitas com cartão tipo LPB (Liquid Packaging Board) e usualmente estocadas de forma empilhada, tanto nas prateleiras como nos depósitos dos supermercados. O LPB é um compósito multicamadas de construção complexa, envolvendo, tipicamente, papel produzido com fibras virgens, polietileno e alumínio. O alimento líquido ao ser ...

Prospects of Multiphysics Simulations to Steer the Development of High Brightness LED Technologies

T. Lopez [1], O. Shchekin [1],
[1] Lumileds, Eindhoven, Netherlands

The versatility of COMSOL Multiphysics® software has positioned it at competitive levels against other considered industrial-standard engineering software tools. This contribution is directed towards emphasizing the need of further developing the basic concepts of this versatile tool in order to enable the implementation of complex physics modeling techniques in rapid, flexible and customized ...

Si-Infiltrated SiC Lattices in Elevated Temperatures: A Thermo-Mechanical Analysis

E. Rezaei [1],
[1] EPFL, Lugano, Switzerland

Si-infiltrated SiC porous composites exist in different forms composed of cores of cellular ceramic and skin plates of ceramic matrix composites. Due to high thermal conductivity, low coefficient of thermal expansion, high elastic modulus and high strength, the final product can be a promising candidate for applications in temperatures up to 1500 K such heat exchangers, recuperators and solar ...

Stresses Due to Intercalation of Non-Spherical Lithium Storage Particles - new

R. Purkayastha[1], R. McMeeking[2]
[1]Cambridge University, Cambridge, UK
[2]University of California, Santa Barbara, CA, USA

Due to computational considerations most models of lithium storage particles in batteries incorporate spherical particles. However most storage particles used in battery electrodes tend to be irregular in shape with sharp edges and extended aspect ratios. The change of the relative surface area to the volume of the particle can lead to a change in the stress response of the particle for the same ...

Investigation of Thermal and Mechanical Factors on Distance Sensors in a Tow Bar

C. Mallwitz [1], L. Fromme [1], B. Sielhorst [2],
[1] University of Applied Sciences Bielefeld, Department of Engineering Sciences and Mathematics, Bielefeld, Germany
[2] Westfalia-Automotive GmbH, Rheda-Wiedenbrück, Germany

Most technical systems become smart over time, therefore those systems will have improved safety and comfort functions. An example is a new development by Westfalia-Automotive. A new generation of smart tow bars, equipped with a sensor system, including distance sensors, is able to inform the driver of a car with a connected trailer about vertical and trailing loads. This helps to ensure a ...

Simulation of a Forming Process for Joining a Piezo Aluminium Module

M. Hackert, S.F. Jahn, and A. Schubert
Chemnitz University of Technology, Chair Micromanufacturing Technology, Germany

The fabrication of piezo aluminium composite modules for sensor and actor applications with mass production technologies is in the scope of the SFB/Transregio 39 PT-PIESA project funded by the (German Research Foundation). After forming of cavities with a width of 0.3 mm into aluminium sheets by micro impact extrusion and the insertion of 0.25 × 0.25 mm2 piezo rods, a joining of the rods into ...

Analysis Of The Design Criteria For Ancient Greek And Roman Catapults

K.M. Paasch
Center for Product Development, Mads Clausen Institute, South Danish University, Denmark

This paper will give a short overview of use of COMSOL Multiphysics for analyzing ancient Greek and Roman catapults with the main focus on the energy storing torsion springs. Catapults have been known and used in the Greek and Roman world from around 399 BC and a fully standardized design for powerful torsion catapults emerged around 270 BC, based on one basic factor, the diameter of the torsion ...

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