Engineering Simulation Tools That Support Multiphysics Analysis

What happens when a car meets water - not in a lab, but in a fully simulated wading channel complete with speed bumps, puddles, and real suspension dynamics? In this technical deep dive, shonDynamics demonstrates the power of shonDy and shonMesh in modeling one of the most challenging multi-physics problems in automotive engineering: a vehicle navigating through a flooded channel - where fluid dynamics meets structural deformation. The study leverages the DrivAer Model from TU Munich and a high-fidelity 3D geometry generated in shonMesh, creating a realistic environment that combines terrain obstacles and fluid interaction. Over 3 million particles were simulated to replicate how puddle water splashes, deforms, and interacts with the suspension system - offering engineers a window into transient dynamics that are nearly impossible to capture experimentally. Key insights include: - Suspension deformation profiles under coupled fluid-structure interaction - Velocity and load response as the vehicle traverses speed bumps and puddles - Fluid coverage and flow visualization around the wheels and underbody - How high particle resolution (2.5 mm radius) enhances simulation accuracy for splash dynamics and vehicle stability By integrating shonDy’s advanced SPH solver with shonMesh’s geometry automation, engineers can now simulate full-scale vehicle wading and ride comfort scenarios without relying solely on physical prototypes - saving time, cost, and development cycles.

Digital materials science and digital twins from microstructure to engineering components and processes DAMASK 3.0 is here: https://damask.mpie.de/ DAMASK 3.0 is the ultimate free and open source package for developing and conducting multi-physics crystal #plasticity #simulations, covering mechanical #modelling challenges from basic science in single crystal plasticity to large scale industrial applications for 3 decades. #DAMASK has been used by thousands of individual users, industry companies and academic institutions around the globe. We have cast all our scientific and engineering expertise into this package, since more than 30 years. The solution of continuum #mechanical boundary value problems requires a constitutive response that connects #deformation and #stress at each #material point. This problem is solved in #DAMASK on the basis of #crystal plasticity using a variety of #constitutive #models and #homogenization approaches. However, #microstructure mechanics alone is insufficient to study emergent advanced high-strength materials and the associated processing and #forming operations or performance analysis when parts get exposed to real-life loading scenarios. In real complex #engineering materials, #deformation happens interrelated with displacive phase transformation, dissipative and external #heating, and potential damage evolution. Motivated by this complexity associated with real #microstructures of modern high performance alloys and forming operations, #DAMASK has been equipped with a suite of constitutive multi-physics laws, capable of describing the interplay of elasto-plastic deformation and strain hardening, athermal transformations such as #martensite formation and #twinning as well as damage effects. This allows DAMASK also to make physics-based alloy-process-microstructure-based #materialproperty and performance predictions. Following a strictly modular approach, additional field equations are solved in a fully coupled way using a staggered approach. Some basic overview references are here: https://lnkd.in/e3tzE9bu https://lnkd.in/eJSWKUi6 Max Planck Institute for Sustainable Materials Max Planck Society Martin Diehl Franz Roters Philip Eisenlohr Pratheek Shanthraj Sharan Roongta #DAMASK #modeling #simulation #crystalplasticity #FEM #digitaltwin #mechanics #micromechanics #microstructure #plasticity #metals #metallurgy #damage #fracture #crack #strainhardening #sheetforming #metalforming #multiphysics #steel #aluminium #titanium #superalloys #processing #thermomechanical #formingsimulation #plasticity #computationalmaterials #grainsize #alloy #processmetallurgy #crashsimulation #dislocations #elasticity #opensource #crystal #continuummechanics #constitutivemodels #highstrengthsteel #martensite #bainite #phasetransformation #FastFourier

Modeling Ultrafast Heat Transfer with COMSOL Multiphysics® Advancements in ultrafast pulsed laser technologies have brought about the need for understanding heat transfer at extremely short time scales. At sub-nanosecond scales, the conventional heat equation breaks down and we must employ more refined models, such as hyperbolic heat transfer equations and two-temperature models. In this blog post, we briefly review the relevant theory for the most common non-Fourier heat transfer models and see how they can be implemented in the COMSOL Multiphysics® software. #comsol #multiphysics #heattransfer #laser #heatsimulation https://lnkd.in/eaYEYuhF