The Generalized Kelvin-Voigt model has a Prony series representation with several time constants. The Maxwell material can be considered as a type of liquid, since its long-term deformation under a constant stress is unbounded. Two new viscoelasticity models have been added: Maxwell and Generalized Kelvin-Voigt. View screenshot Viscoelasticity Improvements You can view this functionality in the new Mechanical Multiport System: Elastic Wave Propagation in a Small Aluminum Plate tutorial model.
To compute and identify the propagating modes, the Boundary Mode Analysis study is available in combination with the port conditions. The power of reflected and transmitted waves is available in postprocessing. The port condition supports S-parameter (scattering parameter) calculation, but it can also be used as a source to just excite a system. The combined setup with several Port conditions provides a superior nonreflecting condition for waveguides to a perfectly matched layer (PML) configuration or the Low-Reflecting Boundary feature, for example. Combining several Port conditions on the same boundary allows a consistent treatment of a mixture of propagating waves, for example, longitudinal, torsional, and transverse modes. A given Port condition supports one specific propagating mode. The new Port boundary condition, available with the Solid Mechanics interface, is designed to excite and absorb elastic waves that enter or leave solid waveguide structures.
NOTE: You can download the previous versions if needed.View screenshot Port Boundary Condition for Elastic Wave Propagation To run COMSOL, make sure you are connected to engineering VPN and then run the program like you normally would. Once you are ready, click Install, which will proceed through the installation.
The COMSOL installer will open, select your language, and click Next.Ĭhange License Format to for the Port number: 1718Įnter for the Hostname: Ĭheck to make sure all settings are correct and continue to click Next. (steps on how to allow access for Comsol are located at end of page) If the install does not start check to see if your macOS version is compatible OR if you need to provide admin access Open the ‘setup’ file to start the installation. Mount the Comsol package and navigate to the mounted location. Some Images were from prior version, instructions have not been updated yet for 6.1ĭownload the COMSOL package: Comsol 6.1 (ARM M1/M2) ToolBoxes: SERIAL, CHEMCKL, COMSOLCKL, LLMATLABCKL, NONLINEARSTRUCTMATERIALSCKL, RFCKL, STRUCTURALMECHANICSCKL, CADIMPORTCKL, HEATTRANSFERCKL, MEMSCKL, COMSOLGUICKL, CADREADERCKL Installation of COMSOL Multiphysics on a Mac OS X PC Comsol now has ARM M1/M2 version and an Intel Version, download according to your chipset
An early version (before 2005) of COMSOL Multiphysics was called FEMLAB. The PDEs can be entered directly or using the so-called weak form (see finite element method for a description of weak formulation). In addition to conventional physics-based user interfaces, COMSOL Multiphysics also allows for entering coupled systems of partial differential equations (PDEs). The packages are cross-platform (Windows, Mac, Linux). COMSOL Multiphysics also offers an extensive interface to MATLAB and its toolboxes for a large variety of programming, preprocessing and postprocessing possibilities. COMSOL Multiphysics is a finite element analysis, solver and Simulation software / FEA Software package for various physics and engineering applications, especially coupled phenomena, or multiphysics.