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AuthorEyvazian, Arameh
AuthorEltai, Elsadig
AuthorMusharavati, Farayi
AuthorTaghipoor, Hossein
AuthorSebaey, T. A.
AuthorTalebizadehsardari, Pouyan
Available date2024-02-22T06:20:35Z
Publication Date2020-07-25
Publication NameSteel and Composite Structures
Identifierhttp://dx.doi.org/10.12989/scs.2020.36.2.119
CitationEyvazian, A., Eltai, E., Musharavati, F., Taghipoor, H., Sebaey, T. A., & Talebizadehsardari, P. (2020). Experimental and numerical investigations on axial crushing of square cross-sections tube with vertical wave. Steel Compos Struct, 36(2), 119-141.‏
ISSN12299367
URIhttps://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85096165563&origin=inward
URIhttp://hdl.handle.net/10576/52076
AbstractIn this paper, wavy square absorbers were experimentally and numerically investigated. Numerical simulations were performed with LS-Dyna software on 36 wavy absorbers and their crushing properties were extracted and compared with the simple one. The effect of different parameters, including wave height, wave depth, and wave type; either internal or external on the crushing characteristics were also investigated. To experimentally create corrugation to validate the numerical results, a set of steel mandrel and matrix along with press machines were used. Since the initial specimens were brittle, they were subjected to heat treatment and annealing to gain the required ductility for forming with mandrel and matrix. The annealing of aluminum shells resulted in a 76%increase in ultimate strain and a 60% and 56% decrease in yield and ultimate stresses, respectively. The results showed that with increasing half-wave height in wavy square absorbers, the maximum force was first reduced and then increased. It was also found that in the specimen with constant diameter and half-wave depth, an increment in the half-wave height led to an initial increase in efficiency, followed by a decline. According to the conducted investigations, the lowe maximum force can be observed in the specimen with zero half-wave depth as compared to those having a depth of 1 cm.
Languageen
PublisherTechno-Press
SubjectAxial compression
Buckling
Energy dissipation
Numerical analysis
Quasi-static
TitleExperimental and numerical investigations on axial crushing of square cross-sections tube with vertical wave
TypeArticle
Pagination119-141
Issue Number2
Volume Number36
dc.accessType Abstract Only


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