Forming induced wrinkling of composite laminates: A numerical study on wrinkling mechanisms
2016 (English)In: Composites. Part A, Applied science and manufacturing, ISSN 1359-835X, E-ISSN 1878-5840, Vol. 81, 41-51 p.Article in journal (Refereed) PublishedText
When manufacturing composite aircraft components consisting of uni-directional prepreg laminates, Hot Drape Forming (HDF) is sometimes used. One issue with HDF is that, in contrast to hand lay-up where normally only one ply is laid up at a time, multiple plies are formed together. This limits the in-plane deformability of the stack, thus increasing the risk of out-of-plane wrinkling during forming. In this paper mechanisms responsible for creating different types of wrinkles are explained. It is shown through simulations how the wrinkles are created as a result of interaction between two layers with specific fibre directions or due to compression of the entire stack. The simulations are compared to experimental results with good agreement.
Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 81, 41-51 p.
A. Prepreg, C. Process simulation, E. Forming
IdentifiersURN: urn:nbn:se:kth:diva-181434DOI: 10.1016/j.compositesa.2015.10.012ISI: 000369214600005ScopusID: 2-s2.0-84946781893OAI: oai:DiVA.org:kth-181434DiVA: diva2:900771
FunderXPRES - Initiative for excellence in production research
QC 201602052016-02-052016-02-022016-04-25Bibliographically approved