Finite Element Modeling of Ceramic Green Part Warping Induced by Shrinkage During the Stereolithography Printing Process
Abstract
The shrinkage strain, occurring upon UV curing and aging, leads to non-uniform dimensional changes that can compromise the part’s final geometry. This study investigates the deformation of green parts during the stereolithography process. Based on experimental measurements, a finite element model (FEM) is developed to account for different phenomena contributing to the structural distortion of the part, like polymerization shrinkage and the adhesion between the part and the build platform during printing. In addition, the time dependency of the degree of conversion is also considered to integrate the aging of green parts, and elastoplastic material behavior is also considered to include non-reversible deformations. This novel model makes it possible to predict stress generation during the stereolithography process and simulate part warping over time. The resulting simulations provided a numerical validation for part shapes observed experimentally, as well as insights to better understand the deformation mechanisms and optimize the dimensional fidelity of stereolithography-manufactured components.
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BibTeX
@article{vallet2026finite,
title = {{Finite Element Modeling of Ceramic Green Part Warping Induced by Shrinkage During the Stereolithography Printing Process}},
author = {Dylan Vallet and Philippe Michaud and Yaasin Mayi and Wen Zhang and Vincent Pateloup},
journal = {Ceramics},
year = {2026},
month = jul,
doi = {10.3390/ceramics9070068},
url = {https://unilim.hal.science/hal-05797717v1},
note = {CC BY},
}
RIS
TY - JOUR
TI - Finite Element Modeling of Ceramic Green Part Warping Induced by Shrinkage During the Stereolithography Printing Process
AU - Dylan Vallet
AU - Philippe Michaud
AU - Yaasin Mayi
AU - Wen Zhang
AU - Vincent Pateloup
PY - 2026
DA - 2026/07/02
JO - Ceramics
DO - 10.3390/ceramics9070068
UR - https://unilim.hal.science/hal-05797717v1
AB - The shrinkage strain, occurring upon UV curing and aging, leads to non-uniform dimensional changes that can compromise the part’s final geometry. This study investigates the deformation of green parts during the stereolithography process. Based on experimental measurements, a finite element model (FEM) is developed to account for different phenomena contributing to the structural distortion of the part, like polymerization shrinkage and the adhesion between the part and the build platform during printing. In addition, the time dependency of the degree of conversion is also considered to integrate the aging of green parts, and elastoplastic material behavior is also considered to include non-reversible deformations. This novel model makes it possible to predict stress generation during the stereolithography process and simulate part warping over time. The resulting simulations provided a numerical validation for part shapes observed experimentally, as well as insights to better understand the deformation mechanisms and optimize the dimensional fidelity of stereolithography-manufactured components.
SN - 2571-6131
ER -