An anisotropic elasto-viscoplastic-damage model for Selective Laser Sintered food

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

Research output: Contribution to journalArticleAcademicpeer-review

7 Citations (Scopus)
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Abstract

Selective Laser Sintered food exhibits anisotropic mechanical properties that are characteristic for its layer-by-layer manufacturing process. A constitutive model that is capable of describing the anisotropic elasto-viscoplastic-damaging behavior of the material, which was experimentally characterized by compression testing in two distinct principal orientations, is presented. Damage is modeled by applying the effective stress concept in combination with a viscoplastic flow rule that effectively regularizes damage localization. The model allows for quantitative predictions of the mechanical response of the printed food and is a valuable tool for assessing texture properties of food with Selective Laser Sintering.

Original languageEnglish
Article number108368
Number of pages19
JournalEngineering Fracture Mechanics
Volume266
DOIs
Publication statusPublished - 1 May 2022

Funding

The authors acknowledge TNO (Netherlands Organisation for Applied Scientific Research) for the financial support. We thank Marc Hoppenbrouwers (TNO) and Ruth Cardinaels (Eindhoven University of Technology) for technical support and Martijn Noort (Wageningen University and Research) for the preparation of the powder mixture.

FundersFunder number
Netherlands Organisation for Applied Scientific Research
Eindhoven University of Technology

    Keywords

    • 3D food printing
    • Anisotropy
    • Constitutive model
    • Damage characterization
    • Selective Laser Sintering

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