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Influence of leaky vacuum bags on the quality of composite parts made from prepreg material

Haschenburger, Anja and Stüve, Jan (2021) Influence of leaky vacuum bags on the quality of composite parts made from prepreg material. Kunststoffe. Carl Hanser Verlag. doi: 10.3139/O999.01042021.

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Official URL: https://en.kunststoffe.de/a/specialistarticle/influence-of-leaky-vacuum-bags-on-the-qu-351069


Leakage in vacuum bags for fibre composite production is a frequently occurring defect, especially in the manufacture of components using the open mould process. The previous limit values for assessing the leak tightness of a vacuum set up are mostly historical and based on empirical values. In this paper, the effects of leaks that have been introduced in a defined manner into a vacuum bag are investigated. The physical processes that occur during curing within the leaking vacuum structure are analysed optically as well as by means of ultrasonic testing and thickness measurement and a better understanding of the effects on laminate quality is generated. It is found that there is a difference between leakages in the vacuum bag only and leakages that affect both the vacuum and release film.

Item URL in elib:https://elib.dlr.de/145438/
Document Type:Article
Title:Influence of leaky vacuum bags on the quality of composite parts made from prepreg material
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Haschenburger, AnjaAnja.Haschenburger (at) dlr.dehttps://orcid.org/0000-0001-9342-0220
Stüve, JanJ.Stueve (at) tudelft.nlhttps://orcid.org/0000-0003-1483-2476
Date:1 November 2021
Journal or Publication Title:Kunststoffe
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
DOI :10.3139/O999.01042021
Publisher:Carl Hanser Verlag
Keywords:Vacuum bagging, composite, autoclave, leakage
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L - no assignment
DLR - Research theme (Project):L - no assignment, L - Advanced Materials and New Manufacturing Technologies
Location: Stade
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Composite Process Technology
Deposited By: Haschenburger, Anja
Deposited On:15 Nov 2021 09:27
Last Modified:15 Nov 2021 09:27

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