Session: MR-04-01
Paper Number: 143454
143454 - An Undulating Kirigami Pattern With Enhanced Tear Strength
Kirigami, the cutting and folding of sheets, can create useful three-dimensional shapes from flat sheets of material. Some kirigami patterns self-deploy from their flat state when tension is applied; we call these Tension Activated Kirigami (TAK) patterns. A new TAK pattern has been proposed that produces ribbons of material that undulate out of the plane of the kirigami sheet when deployed with tension. In the planar state, this pattern comprises staggered rows of multiple slits, so we call it the multi-slit pattern. The multiple slits can include two, three or more slits in place of the widely studied single-slit kirigami pattern, with an increased number of undulations produced with additional slits. An enhancement is also proposed that increases the tear strength of this pattern by adding multiple beams to carry the tension forces that deploy and hold the structure. This multi-beam enhancement to the multi-slit pattern has been investigated with experiments and duplicated with FEA simulations. Good correlation was found, and a broader design space was also investigated with additional simulations. It is proposed that the multi-slit undulating kirigami pattern, with or without the multi-beam enhancement, produces a compelling new deployed structure with increased interlocking and the potential for many applications.
Presenting Author: Tom Corrigan 3M
Presenting Author Biography: Tom is a mechanical engineer, inventor, and problem solver who has collaborated across 3M company for more than a quarter century to develop technology, manufacturing processes, and products. He is a named inventor on over 90 patent family applications in a diversity of fields. Tom taught for several years as an adjunct professor at the University of Minnesota, has coached and judged FTC robotics teams for many years, and he is a third-degree black belt in Shotokan Karate. In recent years, Tom has developed kirigami based technology including the invention of Scotch Cushion Lock, an expanding paper based protective wrap.
Authors:
Tom Corrigan 3MDi Xie 3M
Abhishek Srivastava 3M
An Undulating Kirigami Pattern With Enhanced Tear Strength
Paper Type
Technical Paper Publication