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Publications (5/5 displayed)
- 2016The softened heat-affected zone in resistance spot welded tailor hardened boron steel: a material model for crash simulation
- 2016Plasticity and fracture modeling of the heat-affected zone in resistance spot welded tailor hardened boron steelcitations
- 2016Determination of strain hardening parameters of tailor hardened boron steel up to high strains using inverse FEM optimization and strain field matchingcitations
- 2015Identification of plasticity model parameters of the heat-affected zone in resistance spot welded martensitic boron steelcitations
- 2014Plasticity and fracture modeling of quench-hardenable boron steel with tailored propertiescitations
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document
The softened heat-affected zone in resistance spot welded tailor hardened boron steel: a material model for crash simulation
Abstract
A hardness-based model for tailor hardened boron steel is presented that takes into account the softened heat-affected zone of resistance spot welds. The computational model is designed for crashworthiness simulation of fully and partially hardened components obtained by tailored tooling. Five different hardness grades of 22MnB5 are used for model calibration. The proposed model is validated with a specially designed tapered tensile test specimen with hardness transition zone and resistance spot weld in the gauge section.