Ropers S. Bending Behavior of Thermoplastic Composite Sheets: Viscoelasticity and Temperature Dependency in the Draping Process

Springer Fachmedien Wiesbaden GmbH, 2017. — 112 p. — (AutoUni – Schriftenreihe 99) — ISBN: 9783658175931Because of their high strength- and stiffness-to-weight ratio, their processability as well as their recyclability, composite parts made of continuous fiber reinforced thermoplastic prepregs are presenting an attractive alternative to the automotive industry for structural applications. During manufacturing, these prepregs must be shaped and draped into complicated shapes, a step that is often hindered by wrinkle formation and changes in fiber orientation, which consequently affect the mechanical performance of these parts. While the shear deformation of thermoplastic prepregs is well understood, the bending behavior has remained somewhat of a mystery. In an effort to improve the draping process of thermoplastic prepregs and contribute to the understanding of the deformation behavior of such materials, Steffen Ropers presents this work which includes a series of experiments and simulations, that allow him to characterize the viscoelastic bending behavior of these prepregs as a function of deformation, time scale and temperature.Thermoplastic Prepregs
Draping Simulation of Thermoplastic Prepregs
Bending Characterization of Textile Composites
Simulation of Bending Behavior