Imperial College London
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ProfessorLeroyGardner

Faculty of Engineering, Department of Civil and Environmental Engineering

Professor of Structural Engineering
 
 
 
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Contact

 

+44 (0)20 7594 6058leroy.gardner

 
 
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Location

 

435Skempton BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Huang:2022:10.1016/j.engstruct.2022.114922,
author = {Huang, C and Meng, X and Gardner, L},
doi = {10.1016/j.engstruct.2022.114922},
journal = {Engineering Structures},
pages = {1--17},
title = {Cross-sectional behaviour of wire arc additively manufactured tubular beams},
url = {http://dx.doi.org/10.1016/j.engstruct.2022.114922},
volume = {272},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Wire arc additive manufacturing (WAAM) is a promising metal 3D printing technique in the construction industry for its ability to produce large and complex-shaped elements, with reasonable printing accuracy, time and costs. There is currently, however, a lack of fundamental test data onthe structural performance of WAAM elements. To address this, an experimental study into the cross-sectional behaviour of WAAM tubular beams has been conducted and is presented herein. A total of 14 stainless steel square, rectangular and irregular hollow sections, spanning over all cross-section classes of EN 1993-1-4 and AISC 370, were tested in four-point bending. 3D laser scanning, silicone casting and Archimedes’ measurements were employed to collectively determine the as-built geometry and local geometric imperfections of the test specimens, while digital imagecorrelation (DIC) was used to monitor the deformation responses of the specimens during testing. The full moment-curvature histories and key experimental results are presented and discussed. Similar cross-sectional behaviour to that of equivalent, conventionally manufactured sections wasobserved, with the more slender cross-sections showing increased susceptibility to local buckling. However, owing to the inherent geometric variability of WAAM, the tested 3D printed beams exhibited more variable flexural capacities between the repeat specimens than is generallydisplayed by conventionally produced stainless steel sections. Finally, the test results were used to assess the applicability of current cross-section design provisions in the European (EN 1993-1-4) and American (AISC 370) structural design specifications, as well as the continuous strength method (CSM), to WAAM stainless steel tubular beams.
AU  - Huang,C
AU  - Meng,X
AU  - Gardner,L
DO  - 10.1016/j.engstruct.2022.114922
EP  - 17
PY  - 2022///
SN  - 0141-0296
SP  - 1
TI  - Cross-sectional behaviour of wire arc additively manufactured tubular beams
T2  - Engineering Structures
UR  - http://dx.doi.org/10.1016/j.engstruct.2022.114922
UR  - https://www.sciencedirect.com/science/article/pii/S0141029622009981?via%3Dihub
UR  - http://hdl.handle.net/10044/1/99570
VL  - 272
ER  -
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