Fiber Metal Laminates have again gained popularity in recent years thanks to the research focused on constituents other than classically utilized epoxy matrix and aluminum. In the presented paper we present investigation on the modified FML material that are based on polyamide 6 matrix (thermoplastic instead of thermoset). For such material there is still need of testing low-velocity impact behavior as they differ in response to standard FMLs. The conference contribution focuses on the tests realized for two configurations of the specimen with only composite layer \(0^\circ \) (type A) and both \(0^\circ \) and \(90^\circ \) (type B). Experimental testing was realize using Step-Lab DW1000 machine according to ASTM D7136 standard. Specimens were rectangles measures 100 × 150 mm and the impactor was dropped with energy of 50 J. During the test energies, displacement and forces were registered. Observed maximum loads and displacement were of the order of 8 kN and 6 mm respectively for both types of the configurations. This research presents early phase of larger project and will be continued in the future testing more configurations of FML material based on thermoplastic matrices as well as developing numerical model (finite element) describing low-velocity impact in such materials.

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Experimental and Numerical Analysis of Low Velocity-Impact Behaviour of Thermoplastic Fiber Metal Laminate

  • Michał Smolnicki,
  • Paweł Zielonka,
  • Dariusz Pyka,
  • Karina Krawiec,
  • Grzegorz Lesiuk

摘要

Fiber Metal Laminates have again gained popularity in recent years thanks to the research focused on constituents other than classically utilized epoxy matrix and aluminum. In the presented paper we present investigation on the modified FML material that are based on polyamide 6 matrix (thermoplastic instead of thermoset). For such material there is still need of testing low-velocity impact behavior as they differ in response to standard FMLs. The conference contribution focuses on the tests realized for two configurations of the specimen with only composite layer \(0^\circ \) (type A) and both \(0^\circ \) and \(90^\circ \) (type B). Experimental testing was realize using Step-Lab DW1000 machine according to ASTM D7136 standard. Specimens were rectangles measures 100 × 150 mm and the impactor was dropped with energy of 50 J. During the test energies, displacement and forces were registered. Observed maximum loads and displacement were of the order of 8 kN and 6 mm respectively for both types of the configurations. This research presents early phase of larger project and will be continued in the future testing more configurations of FML material based on thermoplastic matrices as well as developing numerical model (finite element) describing low-velocity impact in such materials.