Kirigami are part of the larger class of mechanical metamaterials, which exhibit exotic properties. This article focuses on rhombi-slits, which is a specific type of kirigami. A nonlinear kinematic model was previously proposed as a second order divergence-form PDE with a possibly degenerate, and sign-changing coefficient matrix. We first propose to study the existence of solutions to a regularization of this equation by using the limiting absorption principle. Then, we propose a finite element method to approximate the solutions to the regularized equation. Finally, simulations are compared with experimental results.
Keywords: Kirigami, Degenerate PDE, Sign-changing PDE, Limiting absorption principle.
Frédéric Marazzato  1
@article{SMAI-JCM_2025__11__677_0,
author = {Fr\'ed\'eric Marazzato},
title = {Computation of the deformation of rhombi-slit kirigami},
journal = {The SMAI Journal of computational mathematics},
pages = {677--692},
year = {2025},
publisher = {Soci\'et\'e de Math\'ematiques Appliqu\'ees et Industrielles},
volume = {11},
doi = {10.5802/smai-jcm.139},
language = {en},
url = {https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.139/}
}
TY - JOUR AU - Frédéric Marazzato TI - Computation of the deformation of rhombi-slit kirigami JO - The SMAI Journal of computational mathematics PY - 2025 SP - 677 EP - 692 VL - 11 PB - Société de Mathématiques Appliquées et Industrielles UR - https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.139/ DO - 10.5802/smai-jcm.139 LA - en ID - SMAI-JCM_2025__11__677_0 ER -
%0 Journal Article %A Frédéric Marazzato %T Computation of the deformation of rhombi-slit kirigami %J The SMAI Journal of computational mathematics %D 2025 %P 677-692 %V 11 %I Société de Mathématiques Appliquées et Industrielles %U https://smai-jcm.centre-mersenne.org/articles/10.5802/smai-jcm.139/ %R 10.5802/smai-jcm.139 %G en %F SMAI-JCM_2025__11__677_0
Frédéric Marazzato. Computation of the deformation of rhombi-slit kirigami. The SMAI Journal of computational mathematics, Volume 11 (2025), pp. 677-692. doi: 10.5802/smai-jcm.139
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