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Metal 3D printing in construction: a review of methods, research, applications, opportunities and challenges

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Title: Metal 3D printing in construction: a review of methods, research, applications, opportunities and challenges
Authors: Buchanan, C
Gardner, L
Item Type: Journal Article
Abstract: 3D printing, more formally known as additive manufacturing (AM), has the potential to revolutionise the construction industry, with foreseeable benefits including greater structural efficiency, reduction in material consumption and wastage, streamlining and expedition of the design-build process, enhanced customisation, greater architectural freedom and improved accuracy and safety on-site. Unlike traditional manufacturing methods for construction products, metal 3D printing offers ready opportunities to create non-prismatic sections, internal stiffening, openings, functionally graded elements, variable microstructures and mechanical properties through controlled heating and cooling and thermally-induced prestressing. Additive manufacturing offers many opportunities for the construction sector, but there will also be fresh challenges and demands, such as the need for more digitally savvy engineers, greater use of advanced computational analysis and a new way of thinking for the design and verification of structures, with greater emphasis on inspection and load testing. It is envisaged that AM will complement, rather than replace, conventional production processes, with clear potential for hybrid solutions and structural strengthening and repairs. These opportunities and challenges are explored in this paper as part of a wider review of different methods of metal 3D printing, research and early applications of additive manufacturing in the construction industry. Lessons learnt for metal 3D printing in construction from additive manufacturing using other materials and in other industries are also presented.
Issue Date: 1-Feb-2019
Date of Acceptance: 15-Nov-2018
URI: http://hdl.handle.net/10044/1/66422
DOI: https://dx.doi.org/10.1016/j.engstruct.2018.11.045
ISSN: 0141-0296
Publisher: Elsevier
Start Page: 332
End Page: 348
Journal / Book Title: Engineering Structures
Volume: 180
Copyright Statement: © 2018 Elsevier Ltd. All rights reserved. This manuscript is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Licence 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
Engineering, Civil
Engineering
3D printing
Additive manufacturing
Applications
Concrete
Metal
Polymers
Research
Review
Stainless steel
Structural engineering
MECHANICAL-PROPERTIES
STAINLESS-STEEL
BUILDING COMPONENTS
RESIDUAL-STRESSES
BEHAVIOR
INDUSTRY
PERFORMANCE
TENSILE
FUTURE
WIRE
0905 Civil Engineering
Civil Engineering
Publication Status: Published
Online Publication Date: 2018-11-24
Appears in Collections:Faculty of Engineering
Civil and Environmental Engineering



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