@inproceedings{72bc4468c50040538d8dd2112f127af6,
title = "Quasi-static and dynamic behavior of additively manufactured metallic lattice cylinders",
abstract = "In this paper, quasi-static and dynamic behavior of additively manufactured stainless steel lattice cylinders is studied. Cylindrical samples with internal lattice structure are fabricated by a laser powder bed fusion system. Equivalent hollow cylindrical samples with the same length, outer diameter, and mass are also fabricated. Split Hopkinson bar is used to study the behavior of the specimens under high strain rate loading. It is observed that lattice cylinders reduce the transmitted wave amplitude up to about 21% compared to their equivalent hollow cylinders. However, the lower transmitted wave energy in lattice cylinders comes at the expense of a greater reduction in their stiffness, when compared to their equivalent hollow cylinder. In addition, it is observed that increasing the loading rate by five orders of magnitude leads to up to about 36% increase in the peak force that the lattice cylinder can carry, which is attributed to strain rate hardening effect in the bulk stainless steel material. Finite element simulations of the specimens under dynamic loads are performed to study the effect of strain rate hardening, thermal softening, and the failure mode on dynamic behavior of the specimens. Numerical results are compared with experimental data and good qualitative agreement is observed.",
author = "Hossein Sadeghi and Dhruv Bhate and Joseph Abraham and Joseph Magallanes",
note = "Publisher Copyright: {\textcopyright} 2018 Author(s).; 20th Biennial American Physical Society Conference on Shock Compression of Condensed Matter, SCCM 2017 ; Conference date: 09-07-2017 Through 14-07-2017",
year = "2018",
month = jul,
day = "3",
doi = "10.1063/1.5044838",
language = "English (US)",
series = "AIP Conference Proceedings",
publisher = "American Institute of Physics Inc.",
editor = "Knudson, {Marcus D.} and Brown, {Eric N.} and Ricky Chau and Germann, {Timothy C.} and Lane, {J. Matthew D.} and Eggert, {Jon H.}",
booktitle = "Shock Compression of Condensed Matter - 2017",
}