The predicted compressive strength of a pyramidal lattice made from case hardened steel tubes

L. St-Pierre, N. A. Fleck*, V. S. Deshpande

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

7 Sitaatiot (Scopus)

Abstrakti

A sandwich panel with a core made from solid pyramidal struts is a promising candidate for multifunctional application such as combined structural and heat-exchange function. This study explores the performance enhancement by making use of hollow struts, and examines the elevation in the plastic buckling strength by either strain hardening or case hardening. Finite element simulations are performed to quantify these enhancements. Also, the sensitivity of competing collapse modes to tube geometry and to the depth of case hardening is determined. A comparison with other lattice materials reveals that the pyramidal lattice made from case hardened steel tubes outperforms lattices made from solid struts of aluminium or titanium and has a comparable strength to a core made from carbon fibre reinforced polymers.

AlkuperäiskieliEnglanti
Sivut41-52
Sivumäärä12
JulkaisuInternational Journal of Solids and Structures
Vuosikerta51
Numero1
DOI - pysyväislinkit
TilaJulkaistu - 1 tammikuuta 2014
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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