Mask-Morph Graph U-Net: A Generalisable Mesh-Based Surrogate for Crashworthiness Field Prediction under Large Geometric Variation
Researchers have developed new graph neural network (GNN) architectures to improve the speed and accuracy of crashworthiness simulations for vehicle components. The first approach, Mask-Morph Graph U-Net (MMGUNet), addresses limitations in hierarchical GNNs by morphing graph hierarchies to match input meshes, improving spatial correspondence and reducing train-test discrepancies. The second model, Recurrent Graph U-Net (ReGUNet), uses a recurrent architecture to enhance temporal prediction stability for dynamic deformation analysis. Both models demonstrate significant reductions in prediction error and computational cost compared to existing methods, accelerating the design cycle for components like vehicle B-pillars. AI
IMPACT These models could significantly speed up the design and optimization process for safety-critical vehicle components.