Show simple item record

AuthorYang F.
AuthorMeguid S.A.
AuthorHamouda A.M.S.
Available date2020-01-01T10:25:02Z
Publication Date2018
Publication NameInternational Journal of Mechanics and Materials in Design
ResourceScopus
ISSN1569-1713
URIhttp://dx.doi.org/10.1007/s10999-016-9364-z
URIhttp://hdl.handle.net/10576/12443
AbstractIn this paper, the progressive collapse of foam filled conical frusta is investigated analytically using four different kinematically admissible folding mechanisms with varied straight folds. Comparisons are made between these four kinematically admissible mechanisms; specifically, pure inward folding, pure outward folding, first inward followed by outward folding, and first outward followed by inward folding. The instantaneous force as well as the mean crushing force was derived based on the principle of energy conversation, and the crushing energy was absorbed by the plastic deformation of the shell, the crushing of foam filler and the foam/shell interaction. The resulted upper bound solution of the four different mechanisms is compared with the finite element predictions of the same system. Our parametric study reveals that first outward then inward folding mechanism is generally energy favorable except for cases involving greater foam resistance, thin shell thickness, and/or large taper angle in which the pure outward folding mechanism may be preferable. - 2017, Springer Science+Business Media Dordrecht.
SponsorAcknowledgements This research effort was made possible by NPRP Grant # (7-236-3-053) from the Qatar National Research Fund (a member of Qatar Foundation), National Natural Science Foundation of China (11402173), and Innovation Program of Shanghai Municipal Education Commission (15zz018). Additional support from the Natural Sciences and Engineering Research Council of Canada and Shanghai Supercomputer Center is also gratefully acknowledged.
Languageen
PublisherSpringer Netherlands
SubjectFoam filled
Frusta
Kinematically admissible mechanism
Progressive collapse
TitleKinematically admissible folding mechanisms for the progressive collapse of foam filled conical frusta
TypeArticle
Pagination105-126
Issue Number1
Volume Number14
dc.accessType Abstract Only


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