Modeling hyperelastic material using "neo hookean"
I'm trying to model a hyper elastic material using the "Neo- hookean" proporties. It is my first time working with hyper elastic materials, and the solving of the problem is causing me trouble. The...
View ArticleCOMSOL Inventor Interface
I receive the error code: Internal JNI error when trying to open .mph in Inventor. My overall goal is to export the geometry in COMSOL: so that I can create a mask. I need the final file format to be...
View ArticleFluid Structure Interaction with Contact
I'm trying to simulate a reed valve combining a fluid-structure interaction model with contact (i.e. the reed closing). I have been successful so far simulating the fluid-structure interaction of the...
View ArticleOverlap integrals of variables belonging to different studies?
I am trying to calculate the overlap integral of two eigenfunctions (in comsol 4.a). Each eigenfunction is calculated from a seperate study. That is, I have study 1 and study 2 in the Model Builder...
View ArticleTurn off step size tuning in parametric continuation?
Does anyone know how to turn off step size tuning in parametric continuation? For example I want it to change the parameter in steps of 0.2. I want COMSOL to change the parameter by 0.2, and then solve...
View Articlewho have any example or a tutorial about the comsol API javascript
Hi everyone, Now, I am reading the comsol manual about a getting started in COMSOL Java API. But it is very simple, i don't understant anything, Anyone have the stuff about this problem. Please send or...
View ArticleThermoelectric Effect
Hello, I'm working on Thermoelectric Generator and I would like to have a basic model with the equations used in COMSOL, Could anyone who worked in this field, please help. With Regards . Pheba
View ArticleContact problem. Static vs Dynamic
I have an impact model; steel presses down soft tissue. I can solve this model in static analysis with prescribed displacement. But when I solved the model in dynamic analysis with prescribed velocity,...
View ArticleSynchronous machine (torque)
Hi, I am new to COMSOL. I am tryng to build three phase synchrnous machine model. I have applied three phase voltage to the machine but unable to generate torque in a machine, I do not waht is wrong...
View ArticleTime dependent material properties
Hello I'm trying to make a simplified thermal model of a Li-Ion battery. I'm using the Joule Heating model and a time dependent study. I want to model the State of Charge with either an integration of...
View Articlejava.lang.ClassCastException when using LiveLink from MATLAB
Hi there, I've been successfully using COMSOL and LiveLink for a few months now for generating and simulating electromagnetic models. However, yesterday I ran the same MATLAB code as I always do, but...
View ArticleLine plots for stress distribution
Hi everyone, I'm running a simulation on a micro cantilever coated with a film. My goal is to observe the deformation and stress distribution on the cantilever, under the application of temperature...
View ArticleMeshing of Fluid structure interaction in a blood vessel
hi all, I am doing a FSI steady state analysis of blood vessel, the fluid domain surrounds by 4 layers (solid domains). the thickness of fluid domain is in millimeters but solid domains have diameters...
View ArticleFSI of Synthetic Jet Actuator
Dear Experts, I am working on simulation of synthetic jet actuator and i am coupling the FSI and Piezoelectric devices physics. i am trying to model case study from one of the paper that was presented...
View ArticlePre stressed frequency domain analysis - How to: Values of Dependent variables
Hello, I am trying to use the solution of the static deformation as the initial conditions for my frequency response analysis. First, I have prepared two solutions, the static deformation is calculated...
View ArticleUsing the grad-free optimization and the with operator.
Hello, I am currently using the Grad-free operator to try to solve an inversion problem. The problem consists of taking measurements of a magnetic field at the surface. We are making synthetic models...
View Articlesurface integrals
I am simulating nonlinear interactions in waveguides and would like to calculate the overlap integrals associated with those interactions. For example, I have found the modes and effective indices for...
View ArticlePotential on a surface of a sphere produced by a dipole source inside
Dear all, I would like to calculate electrostatic potential distribution on a surface of a homogeneous conductive sphere produced by a dipole source inside of this sphere. I have created a sphere and a...
View ArticleVarying A Parameter of a function to get various values from the equation
Hello, I recently started using COMSOL and I am totally on my own and would be really grateful if you could help me out with one question: I'm trying to simulate the change of contact angle of a...
View ArticleCombining Infinite Elements and Translational Motion
I am working on a model and have been unable to find a way to combine both infinite elements and translational motion on the same domains in the model. I have attached a picture from a slightly older...
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