Altair SimLab 2021.1

FSI Simulation

The injection forces during the molding process can deform the mold assembly or the part inserts in the model. Hence it is important to accurately perform fluid-structure analysis and estimate the mold or part insert deformation. The solver has implemented a one-way coupling with Optistruct to compute stress using the forces and temperature computed during the molding process. The AMS solver automatically creates a runnable OptiStruct deck to perform an elastic analysis. You can import these decks in HyperMesh or SimLab to further enhance this and do more advanced analysis. A new parameter is added in the solver to perform FSI analysis automatically. When this option is enabled, the injection molding solver exports the data to perform structural analysis with OptiStruct. This helps in performing core shift analysis

Speedup of Packing Computations

Computation time for the packing stage is improved in version 2021. The solver has many internal parameters to control data that affect the numerical convergence and in turn the computation time. These parameters are finetuned to reduce the computational time without compromising on the solution accuracy.

Hot Runner Support

Hot runner systems are used in more than 35% of the injection molding processes. AMS solver supports the modeling of two types of hot runner systems: valve gated and thermally (open) gated systems. A new BC type called Heater BC is added to support hot runner systems. This BC allows three types of heater controls. They are

1. Insulated,
2. Feedback temperature control, and
3. Sensor-based heater control (i.e. heater is turned ON and OFF using thermocouples)