Experimental analysis of draping process generated material imperfections in textile preforms

Research output: Contribution to book/Conference proceedings/Anthology/ReportConference contributionContributedpeer-review

Abstract

Two dimensional textile reinforcements, e.g. non-crimp-fabrics (NCF), are preformed into complex three-dimensional shapes to be used in fibre reinforced parts for medium to high volume composite applications. The structural performance of NCF reinforced composite parts is significantly influenced by the local fibre architecture of the NCF preform which is formed during the draping process. The resulting local imperfections, their size and their impact on mechanical properties of the composite material has not been fully addressed by present research. To solve this problem, a generic mold for investigations on the draping behaviour of NCF on structural level as well as specific tools for reproducing fibre waviness, fibre gapping and transverse compression due to shear on coupon level, were developed and tested. Major draping effects observed on structural level for 0/90° stacks were shearing and fibre gapping while ±45° layups also showed fibre waviness. With this set of tools, it is possible to investigate the formation of draping effects on structural level and to reproduce selected individual effects on coupon level for mechanical testing of CFRP specimen.

Details

Original languageEnglish
Title of host publicationECCM 2018 - 18th European Conference on Composite Materials
PublisherApplied Mechanics Laboratory
ISBN (print)978-151089693-2
Publication statusPublished - 2020
Peer-reviewedYes

Conference

Title18th European Conference on Composite Materials
Abbreviated titleECCM 18
Conference number18
Duration25 - 28 June 2018
Degree of recognitionInternational event
CityAthens
CountryGreece

External IDs

Scopus 85084162983
ORCID /0000-0003-1370-064X/work/142243481

Keywords