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{Hadjipantelis:2022:10.1016/j.tws.2021.108634,
author = {Hadjipantelis, N and Weber, B and Buchanan, C and Gardner, L},
doi = {10.1016/j.tws.2021.108634},
journal = {Thin Walled Structures},
pages = {1--17},
title = {Description of anisotropic material response of wire and arc additively manufactured thin-walled stainless steel elements},
url = {http://dx.doi.org/10.1016/j.tws.2021.108634},
volume = {171},
year = {2022}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - In contrast to conventionally-produced structural steel and stainless steel elements, wireand arc additively manufactured (WAAM) elements can exhibit a strongly anisotropicmaterial response. To investigate this behaviour, data obtained from tensile tests on machined and as-built coupons extracted from WAAM stainless steel sheets are analysed.The observed mechanical response in the elastic range is described accurately using anorthotropic plane stress material model requiring the definition of two Young’s moduli, thePoisson’s ratio and the shear modulus. In the inelastic range, the anisotropy is capturedthrough the Hill yield criterion, utilising the 0.2% proof stresses in the three different loading directions relative to the deposition direction; plastic Poisson’s ratios are also reported.The presented findings and constitutive description highlight significant variation in theproperties of the studied stainless steel with direction, which opens up opportunities toenhance the mechanical performance of WAAM structures by optimising both the locationand orientation of the printed material.
AU  - Hadjipantelis,N
AU  - Weber,B
AU  - Buchanan,C
AU  - Gardner,L
DO  - 10.1016/j.tws.2021.108634
EP  - 17
PY  - 2022///
SN  - 0263-8231
SP  - 1
TI  - Description of anisotropic material response of wire and arc additively manufactured thin-walled stainless steel elements
T2  - Thin Walled Structures
UR  - http://dx.doi.org/10.1016/j.tws.2021.108634
UR  - https://www.sciencedirect.com/science/article/pii/S0263823121006881?via%3Dihub
UR  - http://hdl.handle.net/10044/1/92789
VL  - 171
ER  -
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