Page 34 - Research Report 2021 - Institut für Leichtbau und Kunststofftechnik
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MALAGA


               Tailored metal-polymer-metal laminates for improved energy
               absorption characteristics of crash structures



               Metal-polymer-metal (MPM) composites combine the advantages of their in-  Period
               dividual components and thus achieve a better mechanical property profile   01.10.2018 – 31.12.2020
               than conventional metal sheets, such as higher specific stiffness and strength.
               This predestines MPM composites for use in crash-relevant components.   Project management
               However, consistent modelling and computation of the deformation and fail-  Prof. Dr.-Ing. habil. Maik Gude
               ure behaviour of hybrid components is currently still a major challenge.
                                                                                Contact
               Therefore, a scale-spanning modelling and characterisation strategy for MPM   Moritz Kuhtz
               composites was developed within the MALAGA project, which enables the tar-  Jonas Richter
               geted adjustment of the failure behaviour of highly dynamical loaded MPM
               structures.   On the one hand, the influence of the trigger concept on the   Project partners
                        [1]
               axial crash behaviour   and, on the other hand, the influence of the adhesive   Institute of Metallurgy (IMET)
                                [2]
               strength between metal and polymer on the energy absorption capacity were   at the TU Clausthal (TUC)
               investigated experimentally and numerically  . Furthermore, the developed
                                                   [3]
               approach could be successfully transferred to bending-loaded hat profiles. [4]  Funding
                                                                                Funded by



                                                                                           German Research Foundation
                                                                                German Research Foundation (DFG)
                                                                                Project number: 407352905























                                                                                             Source: [2] modified
               Experimental and simulative investigation of the failure behaviour of highly-dynamical loaded MPM-composites.











               [1]  Richter, J.; Kuhtz, M.; Hornig, A.; Harhash, M.; Palkowski, H.; Gude, M. A Mixed Numerical-Experimental Method to Characterize Metal-Polymer Interfaces for Crash
                  Applications. Metals 2021, 11, 818. https://doi.org/10.3390/met11050818.
               [2]  Harhash, M.; Kuhtz, M.; Richter, J.; Hornig, A.; Gude, M.; Palkowski, H. Trigger geometry influencing the failure modes in steel/polymer/steel sandwich crashboxes:
                  Experimental and numerical evaluation. Composite Structures, Volume 262, 2021, 113619. https://doi.org/10.1016/j.compstruct.2021.113619.
               [3]  Harhash, M.; Kuhtz, M.; Richter, J.; Hornig, A.; Gude, M.; Palkowski, H. Influence of Adhesion Properties on the Crash Behavior of Steel/Polymer/Steel Sandwich
                  Crashboxes: An Experimental Study. Metals 2021, 11, 1400. https://doi.org/10.3390/met11091400.
               [4]  Harhash, M.; Fischer, T.; Grubenmann, M.; Hua, W.; Heingärtner, J.; Kuhtz, M.; Gude, M.; Hora, P.; Ziegmann, G.; Palkowski, H. Top-hat crashboxes of thermoplastic fibre-
                  metal-laminates processed in one-step thermoforming: Experimental and numerical study. Composites Part B: Engineering, Volume 226, 2021,109367.
                  https://doi.org/10.1016/j.compositesb.2021.109367.



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