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Prediction of warping in thermoplastic AFP-manufactured laminates through simulation and experimentation

Fricke, Daniel and Raps, Lukas and Schiel, Ines (2021) Prediction of warping in thermoplastic AFP-manufactured laminates through simulation and experimentation. Advanced Manufacturing: Polymer and Composites Science. Taylor & Francis. doi: 10.1080/20550340.2021.2015212. ISSN 2055-0340.

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The thermoplastic automated fibre placement (T-AFP) process is a non-autoclave method for in-situ consolidation of thermoplastic composite material on a piecewise constructed laminate. High thermal gradients and nonlinear material behaviour, especially due to crystallization, make predic-tions of process-induced stress and warping difficult. This paper describes a method for simulating parts manufactured by T-AFP using a detailed material model to capture the dynamic nature of the process. The material model is flexible and can be altered to describe different semi-crystalline matrices, in this study focusing on low-melt polyaryletherketone (LM-PAEK). Two laminate panels are simulated within this work and assess the impact of a heated tooling on overall part warping. Panel warping is validated by performing 3D-scans of T-AFP-manufactured laminates produced using the same parameters as the simulation. The results show a good match between numeric and experimental warping, especially for heated tools, thus providing a useful method for predict-ing laminate warping and reducing the demand on manufacturing experimentation.

Item URL in elib:https://elib.dlr.de/146741/
Document Type:Article
Title:Prediction of warping in thermoplastic AFP-manufactured laminates through simulation and experimentation
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Raps, LukasUNSPECIFIEDhttps://orcid.org/0000-0002-4512-8855UNSPECIFIED
Date:16 December 2021
Journal or Publication Title:Advanced Manufacturing: Polymer and Composites Science
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In ISI Web of Science:Yes
Publisher:Taylor & Francis
Keywords:AFP, crystallization, simulation, digital twin
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Components and Systems
DLR - Research area:Aeronautics
DLR - Program:L CS - Components and Systems
DLR - Research theme (Project):L - Structural Materials and Design
Location: Stuttgart
Institutes and Institutions:Institute of Structures and Design > Design and Manufacture Technologies
Deposited By: Fricke, Daniel
Deposited On:20 Dec 2021 09:42
Last Modified:20 Dec 2021 09:42

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