39443 2017 eng 57 62 conferenceobject Interscience Communication Bromley, UK 0 -- -- -- Melt flow and dripping of polymeric materials can be both beneficial and detrimental during fire. It reduces flame spread and result in extinction, as mass and heat are removed from the actual pyrolysis zone. In contrast, melt flow and dripping can provide an additional ignition source, additional process of flame spread and has the potential to start a pool fire. In the vertical UL 94 test, a well adjusted dripping behaviour of flame retarded polypropylene (PP-FR) resulted in a non-flaming dripping V-0 classification. For the polymer samples and their drops collected in UL 94, the decomposition and viscosity was investigated. Particle finite element method (PFEM) was successfully used to simulate the material behaviour in the UL 94 test and increased the understanding of the complex behaviour of polymeric materials during fire. Conference Proccedings Fire and Materials 2017 Fire and Materials, 15th International Conference San Francisco, CA, USA 06.02.2017 08.02.2017 Melissa Matzen J. M. Marti E. Onate S. Idelsohn Bernhard Schartel eng uncontrolled V0 dripping eng uncontrolled Melt flow eng uncontrolled Flammability eng uncontrolled Flame retardant eng uncontrolled Radical generator eng uncontrolled Dripping agent eng uncontrolled Polypropylene eng uncontrolled Particle Finite Element Modelling Ingenieurbau Datei im Netzwerk der BAM verfügbar ("Closed Access") Graue Literatur