Selective Laser Sintered food: A unit cell approach to design mechanical properties

N. Jonkers; J. A.W. van Dommelen; M.G.D. Geers

doi:10.1016/j.jfoodeng.2022.111183

Selective Laser Sintered food: A unit cell approach to design mechanical properties

N. Jonkers
, J. A.W. van Dommelen (Corresponding author)
, M.G.D. Geers

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

30 Citations (Scopus)

45 Downloads (Pure)

Abstract

Selective Laser Sintering is a 3D printing technique that is suitable for tailoring food structures on both macroscopic and microscopic length scales. A unit cell approach was employed to design properties using a spatial distribution of printing parameters within a single product. Support structures were printed and a successive checkerboard strategy was used to effectively reduce warpage effects that occur because of the product size. Cyclic uniaxial compression tests were performed to mechanically characterize the products. Damage evolution was controlled by the process parameters and cracks propagated through the interface between separate unit cells, which was weakened through the printing strategy. Printing with higher area energy density decreased the ductility and increased the stiffness of the geometry.

Original language	English
Article number	111183
Number of pages	9
Journal	Journal of Food Engineering
Volume	335
DOIs	https://doi.org/10.1016/j.jfoodeng.2022.111183
Publication status	Published - Dec 2022

Funding

The authors acknowledge TNO (Netherlands Organisation for Applied Scientific Research) for the financial support. We thank Marc Hoppenbrouwers (TNO) and Marc van Maris (Eindhoven University of Technology) for technical support, Martijn Noort (Wageningen University and Research) for the preparation of the powder mixture and Marcel Meinders (Wageningen University and Research) for discussions on the unit cell design.

Funders
Eindhoven University of Technology
Nederlandse Organisatie voor Toegepast Natuurwetenschappelijk Onderzoek

Keywords

3D food printing
Food design
Fracture
Mechanical properties
Selective laser sintering

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title = "Selective Laser Sintered food: A unit cell approach to design mechanical properties",

abstract = "Selective Laser Sintering is a 3D printing technique that is suitable for tailoring food structures on both macroscopic and microscopic length scales. A unit cell approach was employed to design properties using a spatial distribution of printing parameters within a single product. Support structures were printed and a successive checkerboard strategy was used to effectively reduce warpage effects that occur because of the product size. Cyclic uniaxial compression tests were performed to mechanically characterize the products. Damage evolution was controlled by the process parameters and cracks propagated through the interface between separate unit cells, which was weakened through the printing strategy. Printing with higher area energy density decreased the ductility and increased the stiffness of the geometry.",

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AB - Selective Laser Sintering is a 3D printing technique that is suitable for tailoring food structures on both macroscopic and microscopic length scales. A unit cell approach was employed to design properties using a spatial distribution of printing parameters within a single product. Support structures were printed and a successive checkerboard strategy was used to effectively reduce warpage effects that occur because of the product size. Cyclic uniaxial compression tests were performed to mechanically characterize the products. Damage evolution was controlled by the process parameters and cracks propagated through the interface between separate unit cells, which was weakened through the printing strategy. Printing with higher area energy density decreased the ductility and increased the stiffness of the geometry.

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Selective Laser Sintered food: A unit cell approach to design mechanical properties

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