Simulation Of Damage Mechanisms In Weave Reinforced Materials Based On Multiscale Modeling
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Simulation of damage mechanisms in weave reinforced materials based on multiscale modeling
Author: Naake, Dominik Robert
language: en
Publisher: KIT Scientific Publishing
Release Date: 2020-09-18
A weave reinforced composite material with a thermoplastic matrix is investigated by using a multiscale chain to predict the macroscopic material behavior. A large-strain framework for constitutive modeling with focus on material non-linearities, i.e. plasticity and damage is defined. The ability of the geometric and constitutive models to predict the deformation and failure behavior is demonstrated by means of selected examples.
Fiber-dependent injection molding simulation of discontinuous reinforced polymers
Author: Wittemann, Florian
language: en
Publisher: KIT Scientific Publishing
Release Date: 2022-11-18
This work presents novel simulation techniques for injection molding of fiber reinforced polymers. These include approaches for anisotropic flow modeling, hydrodynamic forces from fluid on fibers, contact forces between fibers, a novel fiber breakage modeling approach and anisotropic warpage analysis. Due to the coupling of fiber breakage and anisotropic flow modeling, the fiber breakage directly influences the modeled cavity pressure, which is validated with experimental data.
Process simulation of wet compression moulding for continuous fibre-reinforced polymers
Author: Poppe, Christian Timo
language: en
Publisher: KIT Scientific Publishing
Release Date: 2022-07-18
Interdisciplinary development approaches for system-efficient lightweight design unite a comprehensive understanding of materials, processes and methods. This applies particularly to continuous fibre-reinforced plastics (CoFRPs), which offer high weight-specific material properties and enable load path-optimised designs. This thesis is dedicated to understanding and modelling Wet Compression Moulding (WCM) to facilitate large-volume production of CoFRP structural components.