SIMULIA Resource Center

As the world’s top OEMs can attest, simulation products are not created equal. Accurate, reliable, real-world results require a validated, proven simulation software package with years of research and development invested. These premier simulations demand significant computational hardware resources that are difficult and expensive to maintain. Simulation has become an absolute necessity to remain competitive in product design and engineering. To best optimize designs and contain development costs, engineers worldwide seek access to premium simulation software which, until now, may have been too costly to deploy internally.

Tech Notes

While Additive Manufacturing (AM) has opened up possibilities for product design that were not even contemplated before, the industry still struggles with unknowns: part distortions, residual stress, and microstructure defects. The 3DEXPERIENCE platform provides a digital thread from design to simulation to production. Within this framework, engineers can perform detailed thermal-mechanical analyses to predict complex physics, such as microstructure, as-built material properties, and buckling. A faster eigenstrain-based simulation method is also available to obtain distortions for part compensation iterations. These simulation tools were awarded first place in residual stress prediction by the recent NIST AM Benchmark, and have been validated for a range of process types and materials.

E-seminars

Unsteady and dynamic vehicle simulations using a Lattice-Boltzmann Method

Tech Notes

As simulation capabilities have continually increased, the quantity of data produced exceeds the capacity of engineers to extract meaningful information in a timely manner. Little time is available for thorough analysis in increasingly tight design schedules. A wealth of information is barely examined by engineers leaving tremendous value on the table. Even if precious time is taken to extract meaningful results, sharing this information across and between organizations takes significant additional time and effort. This can often cause either product development delays or suboptimal product quality.

Tech Notes

Unique, inherently transient Lattice Boltzmann-based physics allows SIMULIA’s PowerFLOW to perform simulations that accurately predict real-world conditions. Using the PowerFLOW suite, engineers evaluate product performance early in the design process prior to any prototype being built—when the impact of change is most significant for design and budgets.

Tech Notes

One of the main design aims in automated product design especially for additive manufacturing (also called 3D printing) is to obtain designs having no need for support structures with respect to overhangs as shown below.

Customer Papers

Thermal management is a critical aspect of vehicle design. When designing with ever-tight packaging and thermally sensitive electronics and plastics for weight reduction, components can exceed safe operating temperature limits and there is potential for systems to fail. Additionally, conditions can degrade nearby components leading to catastrophic durability, safety and warranty issues. Vehicle systems (such as the engine, transmission, HVAC, or power steering) have significant energy requirements and the related thermal efficiency has a direct impact on fuel economy, performance and passenger comfort. Careful analysis of cooling airflow, component placement and thermal shielding is required to avoid costly late-stage design fixes - or worse, failures in operation.

Tech Notes

Press Release

DigitalROCK uses digital imaging and simulation to measure important rock properties accurately and efficiently. Multi-phase relative permeability and capillary pressure results are available in days instead of waiting months for physical lab testing. Faster access to more data reduces uncertainties, improves reservoir modeling, and informs key field planning and engineering decisions.

Tech Notes

The Direct Noise Computation (DNC) approach is challenging in Computational Aero-Acoustics (CAA) since the computation of the pressure fluctuations requires the resolution of unsteady and compressible flows. Indeed, most numerical methods such as the finite volume and element methods face limitations to efficiently resolve the unsteady compressible Navier-Stokes equations for turbulent flows and the computational costs is extremely high. Instead, steady-state analysis with Reynolds-Averaged Navier-Stokes (RANS) turbulence modeling is generally preferred, however this prevents from a direct computation of the noise as only the mean pressure field is obtained. The use of artificial viscosity is also required to achieve numerical stability, which dampens the high frequency physics.

Tech Notes

Solving Electric & Autonomous Vehicle Challenges

Tech Notes

Pre-existing natural fractures in a hydrocarbon reservoir complicate the hydraulic fracture growth and consequently, the microseismic event interpretation. Due to the misalignment of the natural fractures with respect to the far-field principal stresses, shear slippage is introduced as a failure mode or microseismic source along natural fractures. This failure mode, however, leaves a concern about the connectivity of the induced fracture network in order to enhance hydrocarbon production. A poro-elastic fracture intersection and propagation model can rigorously address this concern.

Tech Notes