TRISO（TRistructure ISOtropic）燃料颗粒不仅是在役高温气冷堆燃料元件的核心部件，同时也是下一代用于水冷反应堆的全陶瓷微密封（FCM）耐事故燃料（ATF）元件的关键组成部分。TRISO燃料颗粒由内核部分和包覆层两部分组成，其中内核部分包括球形UO2或UN燃料核芯和包围核芯的疏松热解碳缓冲层，包覆层由内向外依次为内致密热解碳层（IPyC层）、碳化硅层（SiC层）和外致密热解碳层（OPyC层）。基于COMSOL Multiphysics®多物理场耦合有限元软件开发了TRISO燃料颗粒的三维热学-力学-裂变产物扩散耦合分析模型，详细考虑了材料物性参数随温度、快中子注量、各向异性系数和燃耗等因素的变化，热膨胀，燃料核芯的密实和肿胀，Buffer层、IPyC层和OPyC层辐照变形，SiC层、IPyC层和OPyC层辐照蠕变，Buffer层与IPyC层之间的间隙导热 ...
G. Cerretti, J.-C. Gomez-Lavocat, K. Vynck, D.S. Wiersma
European Laboratory for Non-Linear Spectroscopy (LENS), University of Florence, Sesto Fiorentino, Italy
The Institute of Photonic Sciences (ICFO), Mediterranean Technology Park, Castelldefels, Spain
Istituto Nazionale di Ottica (INO), National Research Council (CNR), Florence, Italy
Liquid-crystal elastomers (LCEs)  have attracted a great attention in recent years due to their high potential in a wide range of applications, from microfluidics components  to artificial muscles . The photo-mechanical response of LCEs is due to their constitutive photo-sensitive molecules, which change shape when absorbing part of the incident light. These microscopic deformations can ...
A COMSOL Multiphysics® Software Analysis of Beam Tube Cooling in the High Flux Isotope Reactor of ORNL
J. D. Freels ,
 Research Reactors Division, Oak Ridge National Laboratory, Oak Ridge, TN, USA
Previous to the present work, a formal calculation was approved [1,2] to support the operation of the High Flux Isotope Reactor (HFIR) Horizontal Beam-Tube 1 of 4 (HB-1). The present calculation [3,4] repeats the previous work using COMSOL Multiphysics® software and extends the analysis to cover a broader range of coolant flow. In addition, this new calculation expands the analysis much further ...
Wei Sun ,
 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 ...
H. van Halewijn
Physixfactor, Nijmegen, The Netherlands.
A hyperelastic seal is pulled over a metal ring in a coffee machine for maintenance reasons. The force needed to pull the hyper elastic seal over the part is too high and should be reduced for maintenance reasons. Using the COMSOL Multiphysics® Structural Mechanics Module, and using the non-linear hyperelastic for the stick slip movement, a reliable simulation was generated. It resulted in an ...
J. Wala, D. Maji, S. Dhara, S. Das
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 ...
Y. Xin, A. Purniawan, L. Pakula, G. Pandraud, P. J. French
Technology University of Delft, Delft, Netherlands
This paper presents a freestanding waveguide to achieve the goal of detecting anastomosis leakage after colon surgery. The freestanding part is a thin membrane consisting of TiO2 rib and SiN ridge. This freestanding waveguide is designed both mechanically and optically to maintain mechanical stability during fabrication and detection process, and at the same time guarantee the detection ...
A. Vermeltfoort, and A. van Schijndel
Eindhoven University of Technology, Netherlands
An attempt was made, as described in this paper, to assign material properties like shear strength and modulus of elasticity randomly. In this way, the behaviour of a masonry wall with a prefabricated concrete lintel was experimentally tested and simulated using COMSOL. The paper confirms the possible use of COMSOL for modelling lintel-masonry interaction, including variation of mechanical ...
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 ...
J. Bergstrom , N. Elabbasi ,
 Veryst Engineering, Needham, MA, USA
The use of thermoplastic materials is increasing and it is becoming more important during the design process to accurately represent the non-linear material response in relevant loading conditions. The COMSOL Multiphysics® software supports advanced modeling capabilities for large deformation analyses, including contact and multiphysics couplings. It is now also possible to use advanced non ...