Have you ever had to solve a complex model in Mechanical that you either weren’t familiar with or didn’t have prior knowledge of the critical stress and strain areas? In the past, there were two methods to approach this: 1) Generate a coarser mesh, solve the model, and add refinement to areas of importance. 2) Generate an overrefined mesh from the start to accurately capture the areas of importance. We understand these methods can become time consuming, so in 2023 we introduced a new feature to improve efficiency for durability studies. This new feature, geometry-preserving mesh adaptivity (GPAD), eliminates the need for an overrefined initial mesh and takes out the guesswork on mesh sizing. GPAD enables you to start a simulation with a coarser mesh, and, as the model is solved, the solver monitors quantities like variation of stress in regions and automatically refines the mesh. The refinement of the mesh occurs by matching itself with the underlying computer-aided design (CAD), working closer to the true shape of the model rather than basing it off the previously solved coarse mesh. Because the remeshing occurs during the solution phase, it improves accuracy without incurring a great deal of computational penalties. #StructuralEngineering #AnsysMechanical #GPAD #simulation
Another well established approach is sub-modelling, really easy to be implemented in workbench! Can GPAD and sub-modelling combined?
Not time effective, method 1 is more practical and faster
Very effective solution.
Truly helpful
That looks like an exhaust manifold!
Good solution!
Interesting!
Widad Ait ouchtout
✮ Predictive Mechanical/Mfg. Simulation Leader ✮ >CAD_CAE_DES_FEA + Plastics Molding SME<
2moDoes this work better for linear material models? Can GPAD be used to mesh in high strain regions for polymers?