Explore the latest books of this year!
Bookbot

Andreas Ruhl

    Stalin-Kult und rotes Woodstock
    Doppisches Gemeindehaushaltsrecht - Leitfaden für Mecklenburg-Vorpommern
    Ernährungstipps und Rezepte zu Deinem Wohlbefinden - rund um die Zucchini
    Gesundheitssicherung und demographische Entwicklung
    1200 Jahre Großenlüder
    On the time and temperature dependent behaviour of laminated amorphous polymers subjected to low-velocity impact
    • 2017

      The thesis investigates a polymeric laminate consisting of poly(methyl methacrylate) (PMMA) and thermoplastic polyurethane (TPU) experimentally and numerically with regard to its impact behaviour and applicability. After a basic characterization of the monolithic materials, PMMA-TPU-PMMA laminates were subjected to impact loadings at velocities up to 5 m/s using threepoint bending and dart impact tests. Based on the experimental basis, different material models for the Finite Element simulation are presented, which are able to capture the time and temperature dependent behaviour of the laminate. Final validation experiments, consisting of head-dummy impacts at 10 m/s on automotive side windows, were conducted for PMMA and the laminate in order to investigate their applicability as glass substitution products.

      On the time and temperature dependent behaviour of laminated amorphous polymers subjected to low-velocity impact