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Manufacturing and performance of RTM U-beams
Swedish Institute of Composites.
Luleå tekniska universitet.
1997 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 28, no 6, p. 513-521Article in journal (Refereed) Published
Abstract [en]

Geometrical limitations and robustness of resin transfer moulding were investigated for single curved laminates. The design of experiments approach was used to determine how the out of plane tensile strength is affected by variations in performing method, radius, fibre content and vacuum assistance. U-beams with an inner radius of 0.8 mm were manufactured and demonstrated good mechanical performance. The strength of these beams was in fact less sensitive to defects than the strength of beams with a 5 mm radius. Different preforming methods can have a strong influence on beam strength due to effects on the void content in the finished laminates. The particular preforming problems encountered are described and possible solutions are suggested and tested. For example utilisation of vacuum assistance during mould filling reduces void content, which in turn tends to reduce the sensitivity of the beam strength to other defects such as wrinkling.

Place, publisher, year, edition, pages
1997. Vol. 28, no 6, p. 513-521
National Category
Composite Science and Engineering
Research subject
Polymeric Composite Materials
Identifiers
URN: urn:nbn:se:ltu:diva-3397DOI: 10.1016/S1359-835X(97)00001-8Local ID: 1386f640-8bac-11dc-a33e-000ea68e967bOAI: oai:DiVA.org:ltu-3397DiVA: diva2:976255
Note
Godkänd; 1997; 20071105 (cira)Available from: 2016-09-29 Created: 2016-09-29 Last updated: 2017-11-21Bibliographically approved

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