Imperial College London
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Dr T Ben Britton

Faculty of Engineering, Department of Materials

Visiting Reader
 
 
 
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Contact

 

+44 (0)20 7594 2634b.britton Website

 
 
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Location

 

B301Bessemer BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Kyvelou:2020:10.1016/j.matdes.2020.108675,
author = {Kyvelou, P and Slack, H and Daskalaki, Mountanou D and Wadee, MA and Britton, T and Buchanan, C and Gardner, L},
doi = {10.1016/j.matdes.2020.108675},
journal = {Materials and Design},
title = {Mechanical and microstructural testing of wire and arc additively manufactured sheet material},
url = {http://dx.doi.org/10.1016/j.matdes.2020.108675},
volume = {192},
year = {2020}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - Wire and arc additive manufacturing (WAAM) is a method of 3D printing that enables large elements to be built, with reasonable printing times and costs. There are, however, uncertainties relating to the structural performance of WAAM material, including the basic mechanical properties, the degree of anisotropy, the influence of the as-built geometry and the variability in response. Towards addressing this knowledge gap, a comprehensive series of tensile tests on WAAM stainless steel was conducted; the results are presented herein. As-built and machined coupons were tested to investigate the influence of the geometrical irregularity on the stress-strain characteristics, while material anisotropy was explored by testing coupons produced at different angles to the printing orientation. Non-contact measurement techniques were employed to determine the geometric properties and deformation fields of the specimens, while sophisticated analysis methods were used for post processing the test data. The material response revealed a significant degree of anisotropy, explained by the existence of a strong crystallographic texture, uncovered by means of electron backscatter diffraction. Finally, the effective mechanical properties of the as-built material were shown to be strongly dependent on the geometric variability; simple geometric measures were therefore developed to characterise the key aspects of the observed behaviour.
AU  - Kyvelou,P
AU  - Slack,H
AU  - Daskalaki,Mountanou D
AU  - Wadee,MA
AU  - Britton,T
AU  - Buchanan,C
AU  - Gardner,L
DO  - 10.1016/j.matdes.2020.108675
PY  - 2020///
SN  - 0264-1275
TI  - Mechanical and microstructural testing of wire and arc additively manufactured sheet material
T2  - Materials and Design
UR  - http://dx.doi.org/10.1016/j.matdes.2020.108675
UR  - http://hdl.handle.net/10044/1/79038
VL  - 192
ER  -
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