NUMISHEET 2025 – Scientific Benchmark – Material Under Control (MUC)

Accurate prediction of material behaviour in complex forming operations is desired by industry and academia alike. The NUMISHEET 2025 Scientific benchmark tested the methodologies of 19 industrial and academic entities worldwide in their ability to predict strain fields and punch force-displacements of a DP800 steel in a MUC forming operation given micro to macro level experimental data for material calibration.

The IUL team used the provided experimental data to calibrate an advanced anisotropic yield function with isotropic hardening which was implemented it into a MUC forming simulation. The experimental data consisted of; uniaxial tension (UT) tests in 5 directions, plane strain tension (PST) tests in 3 directions, pure shear in one direction, layered disc compression, and hydraulic bulge tests (HBT). The FEA simulation was constructed in ABAQUS implicit 2024 with a modified tooling configuration to decrease computational cost. In the end the team received third place out of 19 participants worldwide.

Maier, L., Walz, E., Hofmann, M., Kornmeier, J. R., Juan, R., and Junhe, L., 2024.  A Scientific Benchmark for Elasto-Plastic Constitutive Modeling - Part I : Micro- and Macroscopic Experimental Data Set and Benchmark Problem, pp. 1–32.

Eder, M., Gruber, M., Volk, W., 2022. Validation of material models for sheet metals using new test equipment. Int J Mater Form 15, 64. https://doi.org/10.1007/s12289-022-01710-7