Joshua Thomas

We are excited about the new release of COMSOL Version 6.1 and wanted to share a new feature with you, so we put together this quick video. To help you follow along, we have included the video transcription below.   If you’re new to COMSOL, we invite you to register for our introductory class, Multiphysics

Thermal stresses are an important design concern for many engineering applications.  When temperatures change, materials can deform or warp leading to the build-up of internal stresses even without the presence of external constraints which can further increase thermal stresses.  Modeling and simulation can calculate the deformations, stresses and changing contact pressures using thermal-structural interaction techniques. 

Many engineers solve heat transfer challenges regularly. Over the last 20 years, AltaSim has developed hundreds of simulations for our clients that include heat transfer as a component. This Tip comes from our experience in solving a heat transfer problem that included thin layers of different materials. Solid elements are the most widely used type

In working with our customers, AltaSim often seeks to solve an initial problem in two dimensions to save computational time. The CAD we receive from our customers is routinely in three dimensions, and our engineers need to reduce the dimensionality of the solution space. In the past, our engineers spent significant time re-creating CAD in

As COMSOL Multiphysics evolves, methods to include important features in simulations change. Coupling temperatures to different physics is a common need for multiphysics simulations. COMSOL has made changes that effect temperature coupling. Our clients have asked about the warning signs they get when using temperature coupling, and we would like to share with you our

In short: a secant CTE is the average expansion from a reference temperature (usually 273 K) to the current temperature, and a tangent CTE is the rate of expansion at that temperature. COMSOL Multiphysics® accepts either through its “Input type” setting and converts between them on its own. You only need to adjust your data

Incorrect boundary conditions in finite element analysis (FEA) lead to incorrect solutions, or the simulation does not converge. To develop a converged solution, all FEA models require constraining each dependent variable somewhere in the model. Typically, this is done directly onto the model region geometry, but it can also be accomplished through Robin conditions. This

At AltaSim, we take time to evaluate each new release of COMSOL Multiphysics. The changes that COMSOL implements can have a significant impact on how to use the software. Having a deep understanding of these changes helps us serve our clients better. We also pass on our insights via Tips & Tricks so you can benefit

At AltaSim, we await COMSOL’s improvements to their software with great anticipation.  We take time to evaluate these changes to determine what we can use to better serve our clients.  Based on our review, we also pass on our insights via Tips & Tricks. Version 5.6 of COMSOL Multiphysics has introduced serval solver improvements that