Structural performance of additive manufactured metallic material and cross-sections

Title: Structural performance of additive manufactured metallic material and cross-sections
Authors: Buchanan, C
Matilainen, V-P
Salminen, A
Gardner, L
Item Type: Journal Article
Abstract: Additive manufacturing, a common example of which is 3D printing, has become more prevalent in recent years with it now being possible to form metallic structural elements in this way. There are, however, limited available experimental data on the material behaviour of powder bed fusion (PBF) additive manufactured metallic structural elements and no existing data at the cross-section level; this is addressed in the present paper through a series of tests on additive manufactured stainless steel material and cross-sections. Tensile and compressive coupon tests were used to assess anisotropy, symmetry of stress-strain behaviour and the influence of building direction on the material properties. The yield and ultimate tensile strengths were seen to generally decrease in magnitude with increasing build angle, while a reduction in ductility was observed in some building orientations, and the Young's moduli were typically insensitive to the build angle. The structural behaviour of PBF additive manufactured cross-sections was investigated through a series of square hollow section (SHS) stub column tests, and the results compared with conventionally produced stainless steel SHS. The generated test results have been used to evaluate the applicability of existing design guidance for conventionally produced sections to additive manufactured sections.
Issue Date: 14-May-2017
Date of Acceptance: 2-May-2017
URI: http://hdl.handle.net/10044/1/52479
DOI: https://dx.doi.org/10.1016/j.jcsr.2017.05.002
ISSN: 0143-974X
Publisher: Elsevier
Start Page: 35
End Page: 48
Journal / Book Title: Journal of Constructional Steel Research
Volume: 136
Copyright Statement: © 2017 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International http://creativecommons.org/licenses/by-nc-nd/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (E
Funder's Grant Number: CIST_P66773
Keywords: Science & Technology
Technology
Construction & Building Technology
Engineering, Civil
Engineering
Additive manufacturing
Experiments
Metallic materials
Powder bed fusion
Stainless steel
Testing
316L STAINLESS-STEEL
MECHANICAL-PROPERTIES
RESIDUAL-STRESSES
STRENGTH ENHANCEMENTS
LATTICE STRUCTURES
HOLLOW SECTIONS
HEAT-TREATMENT
BEHAVIOR
DESIGN
CONSTRUCTION
0905 Civil Engineering
Civil Engineering
Publication Status: Published
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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