Show simple item record

AuthorAshrafi, M.
AuthorWoodsum, C.J.
AuthorPapadopoulos, J.
AuthorHamouda, Abdelmagid S.
AuthorNayeb-Hashemi, H.
AuthorVaziri, A.
Available date2015-12-15T06:52:46Z
Publication Date2015-12
Publication NameConstruction and Building Materials
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.conbuildmat.2015.10.012
CitationAshrafi, Mahdi et al. "In situ strengthening of thin-wall structures using pressurized foam", Construction and Building Materials, Volume 100, 15 December 2015, Pages 298-304. Available online November 2015
ISSN0950-0618
URIhttp://hdl.handle.net/10576/3943
AbstractA simple and effective in situ method for strengthening or healing thin-wall structures is presented. In this method, a liquid-state gap-sealing foam is injected within the enclosed spaces of a structure. After injection it expands to fill and pressurize the cavities, then solidifies in few hours. The stiff pressurized foam enhances load carrying capacity both by supporting part of the load, and by retarding the buckling of thin-wall structural components. A simple demonstration of the proposed technique is provided by load-testing thin-wall beverage cans, and also both intact and damaged aluminum honeycomb, filled with commercially available gap-sealing polyurethane foam. By adding foam, the structures' peak load and energy absorption were significantly enhanced. The injected foam partially restored the original undeformed shape during unloading, highlighting the potential advantage to apply this method for multiple-use energy absorbing components.
SponsorQatar National Research Foundation (QNRF) Award Number NPRP 09-145-2-061
Languageen
PublisherElsevier Ltd
SubjectCellular structures
Damage
Expanding foam
Foam sealants
Retrofitting
Structural healing
TitleIn situ strengthening of thin-wall structures using pressurized foam
TypeArticle
Pagination298-304
Volume Number100


Files in this item

FilesSizeFormatView

There are no files associated with this item.

This item appears in the following Collection(s)

Show simple item record