Microstructural defects induced by stereolithography and related compressive behaviour of polymers

Tao Liu; Sofiane Guessasma; Jihong Zhu; Weihong Zhang; Hedi Nouri; Sofiane Belhabib

doi:10.1016/j.jmatprotec.2017.08.014

Microstructural defects induced by stereolithography and related compressive behaviour of polymers

Tao Liu, Sofiane Guessasma, Jihong Zhu, Weihong Zhang, Hedi Nouri, Sofiane Belhabib

School of Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

The goal of this work is to discover the defects induced by 3D printing of porous polymeric blocks using stereolithography and any related compressive behaviour. Processing of polymeric blocks containing varied porosity contents in the range 0–60% is performed. X-ray micro-tomography is used to assess the microstructural details of the polymeric blocks. Compression testing is realized up to densification on all orthogonal faces. Mechanical characterization of the blocks shows the typical behaviour of a cellular material and limited anisotropy effect related to building direction. Defects such as trapped resin, altered support structure and unbuilt porosities are quantified. This study concludes that the design of airy structures needs to exclude any form of closed porosity to enable processing using stereolithography.

Original language	English
Pages (from-to)	37-46
Number of pages	10
Journal	Journal of Materials Processing Technology
Volume	251
DOIs	https://doi.org/10.1016/j.jmatprotec.2017.08.014
State	Published - Jan 2018

Keywords

Compression testing
Microstructure
Stereolithography
X-ray micro-tomography

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10.1016/j.jmatprotec.2017.08.014

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title = "Microstructural defects induced by stereolithography and related compressive behaviour of polymers",

abstract = "The goal of this work is to discover the defects induced by 3D printing of porous polymeric blocks using stereolithography and any related compressive behaviour. Processing of polymeric blocks containing varied porosity contents in the range 0–60% is performed. X-ray micro-tomography is used to assess the microstructural details of the polymeric blocks. Compression testing is realized up to densification on all orthogonal faces. Mechanical characterization of the blocks shows the typical behaviour of a cellular material and limited anisotropy effect related to building direction. Defects such as trapped resin, altered support structure and unbuilt porosities are quantified. This study concludes that the design of airy structures needs to exclude any form of closed porosity to enable processing using stereolithography.",

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author = "Tao Liu and Sofiane Guessasma and Jihong Zhu and Weihong Zhang and Hedi Nouri and Sofiane Belhabib",

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doi = "10.1016/j.jmatprotec.2017.08.014",

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T1 - Microstructural defects induced by stereolithography and related compressive behaviour of polymers

AU - Liu, Tao

AU - Guessasma, Sofiane

AU - Zhu, Jihong

AU - Zhang, Weihong

AU - Nouri, Hedi

AU - Belhabib, Sofiane

PY - 2018/1

Y1 - 2018/1

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AB - The goal of this work is to discover the defects induced by 3D printing of porous polymeric blocks using stereolithography and any related compressive behaviour. Processing of polymeric blocks containing varied porosity contents in the range 0–60% is performed. X-ray micro-tomography is used to assess the microstructural details of the polymeric blocks. Compression testing is realized up to densification on all orthogonal faces. Mechanical characterization of the blocks shows the typical behaviour of a cellular material and limited anisotropy effect related to building direction. Defects such as trapped resin, altered support structure and unbuilt porosities are quantified. This study concludes that the design of airy structures needs to exclude any form of closed porosity to enable processing using stereolithography.

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KW - Microstructure

KW - Stereolithography

KW - X-ray micro-tomography

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DO - 10.1016/j.jmatprotec.2017.08.014

M3 - 文章

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SN - 0924-0136

VL - 251

SP - 37

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JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

ER -

Microstructural defects induced by stereolithography and related compressive behaviour of polymers

Abstract

Keywords

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