Journal
JOURNAL OF FOOD ENGINEERING
Volume 335, Issue -, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jfoodeng.2022.111183
Keywords
Food design; 3D food printing; Selective laser sintering; Mechanical properties; Fracture
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Selective laser sintering is a 3D printing technique that can be used to tailor food structures on both macroscopic and microscopic scales. By manipulating the printing parameters and using support structures, warpage effects can be effectively reduced. The mechanical properties and damage evolution of the products are significantly influenced by the printing parameters.
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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