Bioinspired kirigami metasurfaces as assistive shoe grips

被引：82

作者：

Babaee, Sahab ^{[1
,2
,3
]}

Pajovic, Simo ^{[1
,2
,3
,4
]}

Rafsanjani, Ahmad ^{[5
]}

Shi, Yichao ^{[2
,3
,4
]}

Bertoldi, Katia ^{[6
]}

Traverso, Giovanni ^{[1
,2
,3
,7
]}

机构：

[1] MIT, Dept Mech Engn, Cambridge, MA 02139 USA

[2] MIT, Dept Chem Engn, Cambridge, MA 02139 USA

[3] MIT, Koch Inst Integrat Canc Res, 77 Massachusetts Ave, Cambridge, MA 02139 USA

[4] Univ Toronto, Dept Mech & Ind Engn, Toronto, ON, Canada

[5] Swiss Fed Inst Technol, Dept Mat, Zurich, Switzerland

[6] Harvard Univ, John A Paulson Sch Engn & Appl Sci, Cambridge, MA 02138 USA

[7] Harvard Med Sch, Dept Med, Div Gastroenterol, Brigham & Womens Hosp, Boston, MA 02115 USA

来源：

NATURE BIOMEDICAL ENGINEERING | 2020年 / 4卷 / 08期

基金：

瑞士国家科学基金会; 美国国家科学基金会;

关键词：

SLIP-RESISTANCE; WINTER FOOTWEAR; HIP FRACTURE; FALLS; SURFACE; ICY; PERFORMANCE; LOCOMOTION; MORTALITY; OUTSOLE;

D O I：

10.1038/s41551-020-0564-3

中图分类号：

R318 [生物医学工程];

学科分类号：

0831 ;

摘要：

Falls and subsequent complications are major contributors to morbidity and mortality, especially in older adults. Here, by taking inspiration from claws and scales found in nature, we show that buckling kirigami structures applied to footwear outsoles generate higher friction forces in the forefoot and transversally to the direction of movement. We identified optimal kirigami designs capable of modulating friction for a range of surfaces, including ice, by evaluating the performance of the dynamic kirigami outsoles through numerical simulations and in vitro friction testing, as well as via human-gait force-plate measurements. We anticipate that lightweight kirigami metasurfaces applied to footwear outsoles could help mitigate the risk of slips and falls in a range of environments. Buckling kirigami structures applied to footwear outsoles generate higher friction forces transversally to the direction of movement.

引用

页码：778 / 786

页数：9

共 52 条

[21] Simple Approach to High-Performance Stretchable Heaters Based on Kirigami Patterning of Conductive Paper for Wearable Thermotherapy Applications [J].