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An investigation into the depth and time dependent behavior of UV cured 3D ink jet printed objects

Published online by Cambridge University Press:  20 February 2017

X. Chen ,
I.A. Ashcroft ,
C.J. Tuck ,
Y.F. He ,
R.J.M. Hague  and
R.D. Wildman
X. Chen
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
I.A. Ashcroft
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
C.J. Tuck*
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
Y.F. He
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
R.J.M. Hague
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
R.D. Wildman
Affiliation:
Faculty of Engineering, The University of Nottingham, University Park, Nottingham NG7 2RD, UK
*
a) Address all correspondence to this author. e-mail: [email protected]
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Abstract

An ultra-violet (UV) curable ink jet 3D printed material was characterized by an inverse finite element modeling (IFEM) technique employing a nonlinear viscoelastic–viscoplastic (NVEVP) material constitutive model; this methodology was compared directly with nanoindentation tests. The printed UV cured ink jet material properties were found to be z-depth dependent owing to the sequential layer-by-layer deposition approach. With further post-UV curing, the z-depth dependence was weakened but properties at all depths were influenced by the duration of UV exposure, indicating that none of the materials within the samples had reached full cure during the 3D printing process. Effects due to the proximity of an indentation to the 3D printed material material-sample fixing interface, and the different mounting material, in a test sample were examined by direct 3D finite element simulation and shown to be insignificant for experiments performed at a distance greater than 20 µm from the interface.

Keywords

nano-indentationpolymerizationink jet printing
Type
Articles
Information
Journal of Materials Research , Volume 32 , Issue 8 , 28 April 2017 , pp. 1407 - 1420
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Copyright
Copyright © Materials Research Society 2017 

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Footnotes

Contributing Editor: Paolo Colombo

References

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