Abstract
Warp-knitted spacer fabrics filled by rigid polyurethane foam within a reaction injection molding process offers a high potential for application as lightweight sandwich construction. For prediction of foam microstructure and finding appropriate process parameters the simulation of the propagation characteristics of PUR is done by using a coupled system of partial differential equations consisting Navier-Stokes-Brinkman equation. Time, temperature and polymerization dependent viscosity as input parameter for the model is determined by rheological experiments, the permeability tensor is obtained by image processing of the textile microstructure. Mold filling experiments as well as combined foam expansion and rheometer experiments validate the developed models.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
