Standard

Russian doll deployable meta-implants : Fusion of kirigami, origami, and multi-stability. / Bobbert, F. S.L.; Janbaz, Shahram; van Manen, T.; Li, Yageng; Zadpoor, A. A.

In: Materials and Design, Vol. 191, 108624, 2020.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

BibTeX

@article{691bac87ea674d48bd8d6b09f1daede0,
title = "Russian doll deployable meta-implants: Fusion of kirigami, origami, and multi-stability",
abstract = "Deployable meta-implants aim to minimize the invasiveness of orthopaedic surgeries by allowing for changes in their shape and size that are triggered by an external stimulus. Multi-stability enables deployable implants to transform their shape from some compact retracted state to the deployed state where they take their full sizes and are load-bearing. We combined multiple design features to develop a new generation of deployable orthopaedic implants. Kirigami cut patterns were used to create bi-stability in flat sheets which can be folded into deployable implants using origami techniques. Inspired by Russian dolls, we designed multi-layered specimens that allow for adjusting the mechanical properties and the geometrical features of the implants through the number of the layers. Because all layers are folded from a flat state, surface-related functionalities could be applied to our deployable implants. We fabricated specimens from polylactic acid, titanium sheets, and aluminum sheets, and demonstrated that a deployment ratio of up to ≈2 is possible. We performed experiments to characterize the deployment and load-bearing behavior of the specimens and found that the above-mentioned design variables allow for adjustments in the deployment force and the maximum force before failure. Finally, we demonstrate the possibility of decorating the specimens with micropatterns.",
keywords = "Deployable structures, Mechanical behavior, Orthopaedic biomaterials, Surface patterns",
author = "Bobbert, {F. S.L.} and Shahram Janbaz and {van Manen}, T. and Yageng Li and Zadpoor, {A. A.}",
year = "2020",
doi = "10.1016/j.matdes.2020.108624",
language = "English",
volume = "191",
journal = "Materials & Design",
issn = "0264-1275",
publisher = "Elsevier",

}

RIS

TY - JOUR

T1 - Russian doll deployable meta-implants

T2 - Fusion of kirigami, origami, and multi-stability

AU - Bobbert, F. S.L.

AU - Janbaz, Shahram

AU - van Manen, T.

AU - Li, Yageng

AU - Zadpoor, A. A.

PY - 2020

Y1 - 2020

N2 - Deployable meta-implants aim to minimize the invasiveness of orthopaedic surgeries by allowing for changes in their shape and size that are triggered by an external stimulus. Multi-stability enables deployable implants to transform their shape from some compact retracted state to the deployed state where they take their full sizes and are load-bearing. We combined multiple design features to develop a new generation of deployable orthopaedic implants. Kirigami cut patterns were used to create bi-stability in flat sheets which can be folded into deployable implants using origami techniques. Inspired by Russian dolls, we designed multi-layered specimens that allow for adjusting the mechanical properties and the geometrical features of the implants through the number of the layers. Because all layers are folded from a flat state, surface-related functionalities could be applied to our deployable implants. We fabricated specimens from polylactic acid, titanium sheets, and aluminum sheets, and demonstrated that a deployment ratio of up to ≈2 is possible. We performed experiments to characterize the deployment and load-bearing behavior of the specimens and found that the above-mentioned design variables allow for adjustments in the deployment force and the maximum force before failure. Finally, we demonstrate the possibility of decorating the specimens with micropatterns.

AB - Deployable meta-implants aim to minimize the invasiveness of orthopaedic surgeries by allowing for changes in their shape and size that are triggered by an external stimulus. Multi-stability enables deployable implants to transform their shape from some compact retracted state to the deployed state where they take their full sizes and are load-bearing. We combined multiple design features to develop a new generation of deployable orthopaedic implants. Kirigami cut patterns were used to create bi-stability in flat sheets which can be folded into deployable implants using origami techniques. Inspired by Russian dolls, we designed multi-layered specimens that allow for adjusting the mechanical properties and the geometrical features of the implants through the number of the layers. Because all layers are folded from a flat state, surface-related functionalities could be applied to our deployable implants. We fabricated specimens from polylactic acid, titanium sheets, and aluminum sheets, and demonstrated that a deployment ratio of up to ≈2 is possible. We performed experiments to characterize the deployment and load-bearing behavior of the specimens and found that the above-mentioned design variables allow for adjustments in the deployment force and the maximum force before failure. Finally, we demonstrate the possibility of decorating the specimens with micropatterns.

KW - Deployable structures

KW - Mechanical behavior

KW - Orthopaedic biomaterials

KW - Surface patterns

UR - http://www.scopus.com/inward/record.url?scp=85081165829&partnerID=8YFLogxK

U2 - 10.1016/j.matdes.2020.108624

DO - 10.1016/j.matdes.2020.108624

M3 - Article

AN - SCOPUS:85081165829

VL - 191

JO - Materials & Design

JF - Materials & Design

SN - 0264-1275

M1 - 108624

ER -

ID: 71418893