R. Negru , K. Huet, P. Ceccato, B. Godard
Excico, Gennevilliers, France
It is now a well known that the next generation devices in many fields of the semiconductor industry will be based on 3D architectures. In this framework, low thermal budget annealing technological solutions are required. For many applications, either in the field of sensors, microprocessors or high density memories, the Laser Thermal Annealing (LTA), an ultrafast and low thermal budget process, ...
Current Density Distribution and Material Removal Behavior on the Graphite/Iron-matrix Interface in Cast Iron Under Pulse Electrochemical Machining Conditions
O. Weber, R. Kollmannsperger, D. Bähre
Center for Mechatronics and Automatization, Saarbrücken, Germany
Institute of Production Engineering, Saarland University, Saarbrücken, Germany
The Pulse Electrochemical Machining is especially suitable for the precise production of complex geometric contours with high precision and high surface quality demands in workpieces in series manufacturing. During this process, the negative structure of an electrode is copied to the workpiece without sub-surface damages. An adequate knowledge of the current density distribution and thus of the ...
Fondazione Bruno Kessler (FBK), Renewable Energies and Environmental Technologies (REET) Unit, Trento, Italy
Concentrated photovoltaic systems with high efficiency solar cells are being widely investigated, aiming at improving the cost-efficiency balance in the solar energy field. Different cell types are in use: e.g., high concentration triple junction cells, reaching efficiencies of the order of 35 - 40 % at 1000 suns, and medium concentration mono-crystalline silicon cells, with efficiencies of the ...
M. Olsson, T. Wood, C. Alén
Division of GeoEngineering, Chalmers University of Technology, Gothenburg, Sweden
In this paper a elastic-viscoplastic (creep) model is implemented in COMSOL 4.2a and 4.3 and benchmarked against another commercial finite element software package with a very similar material model. It is also validated against commonly performed laboratory tests such as Constant Rate of Strain oedometer tests (CRS) and K0-Consolidated Undrained triaxial tests (K0CU). The implementation in ...
Wenger Engineering, Ulm, Germany
The ampacity of a cable depends on the cross section of its conductor. When selecting a cable design for a specific application it is of interest to choose the lowest possible conductor cross section in order to reduce material costs. Therefore an exact calculation of the ampacity is necessary (it is usually limited by the thermal resistance of the insulating cable materials). Commonly the ...
Fracture-Matrix Flow Partitioning and Cross Flow: Numerical Modeling of Laboratory Fractured Core Flood
R. Sanaee, G.F. Oluyemi, M. Hossain, B.M. Oyeneyin
Robert Gordon University, Aberdeen, United Kingdom
The contrast between hydro-mechanical behavior of the rock matrix and fracture network systems results in flow partitioning between fracture and matrix systems which is affected by the In-situ stress regime. Fracture flow, Darcy law and free and porous media flow physics interfaces of COMSOL were used in simulating a fractured core flooding test to achieve a better understanding of flow ...
S. Lefeuvre, M. Ghomi
EURL CREAWAVE, Labège, France
CALCEM, Ste Foy d'Aigrefeuille, France
COMSOL, adding SPICE® elements into its FEM, gives the possibility of a direct modeling of oscillators: triode and load are FEM described while all the other components of the circuit are just simulated using SPICE®. The modeling is not a straight application of any module but needs the previous computation of the conductivity of the beam through the PDE interface. This paper is a bench mark ...
S. Sandoval Torres, A. de Lourdes Allier González, L.L. Méndez Lagunas
Instituto Politécnico Nacional, CIIDIR, Oaxaca, Mexico
In this work we solve a model to simulate the drying of potatoes slices. The model considers both the transport of free and vapor water by applying a mechanistic approach. The critical moisture point (CMP) was considered, since it is a transition zone and it represents the point where water saturation is near from cero and hygroscopic domain begins. The CMP divides the hygroscopic and non ...
B. Reine, J. Di-Tomaso, G. Dusserre, P. Olivier
Université de Toulouse, UPS, INSA, Mines Albi, ISAE, ICA, IUT, Dept. GMP, Toulouse Cedex, France
RESCOLL - Société de Recherche, Pessac Cedex, France
This paper addresses the study of thermal behavior of thermoset polymer matrix filled with microparticles. A numerical model was developed with COMSOL Multiphysics to get a random spatial distribution of fillers in a representative volume element (RVE). This model was then compared to an analytical reference model (Hamilton model) and experimental results. This comparison highlights a good ...
Keyhole Formation During Spot Laser Welding: Heat and Fluid Flow Modeling in a 2D Axisymmetric Configuration
M. Courtois, M. Carin, P. LeMasson, S. Gaied 
ArcelorMittal, Global R&D, Montataire, France
LIMATB Laboratory, Université de Bretagne Sud, Lorient, France
For a better understanding of phenomena associated to the appearance of defects in laser welding, a heat and fluid flow model is developed. This study is focused on the modeling of a static laser shot on a sample of steel. This 2D axialsymmetric configuration is used to study phenomena related to the creation of the keyhole. This model takes into account the three phases of the matter: the ...