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Experimental identification of process parameters inducing warpage of autoclave-processed CFRP parts

Stefaniak, Daniel and Kappel, Erik and Spröwitz, Tom and Hühne, Christian (2012) Experimental identification of process parameters inducing warpage of autoclave-processed CFRP parts. Composites Part A: Applied Science and Manufacturing. Elsevier. DOI: 10.1016/j.compositesa.2012.02.013 (In Press)

Full text not available from this repository.

Abstract

Autoclave processing of reproducible carbon fibre reinforced plastic (CFRP) structures with high dimensional fidelity is a main challenge for today’s composite manufacturing within the aerospace industry. An ex ante geometrical tool compensation as well as an appropriate process control to minimize dimensional variations requires a good understanding of the crucial parameters. In the present paper a wide range of experimental investigations affirm that warpage deformation of symmetric and initially flat laminates is mainly driven by mechanical tool-part interaction. Furthermore, tool surface roughness and interleaved neat resin areas are observed to influence the magnitude of these deformations significantly. For the description of the effective mechanism a new model, accounting for these findings, is proposed.

Item URL in elib:https://elib.dlr.de/75427/
Document Type:Article
Title:Experimental identification of process parameters inducing warpage of autoclave-processed CFRP parts
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Stefaniak, Danieldaniel (at) stefaniak.deUNSPECIFIED
Kappel, Erikerik.kappel (at) dlr.deUNSPECIFIED
Spröwitz, Tomtom.sproewitz (at) dlr.deUNSPECIFIED
Hühne, Christianchristian.huehne (at) dlr.deUNSPECIFIED
Date:2012
Journal or Publication Title:Composites Part A: Applied Science and Manufacturing
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1016/j.compositesa.2012.02.013
Publisher:Elsevier
Status:In Press
Keywords:Polymer-matrix composites; Residual/internal stress; Autoclave; Prepreg
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research (old)
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials (old)
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Functional Lightweight Structures
Deposited By: Stefaniak, Daniel
Deposited On:10 Apr 2012 07:38
Last Modified:10 Jan 2019 15:47

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