Date of Award
2021
Publisher
North Dakota State University
Document Type
Dissertation
Degree Awarded
Doctor of Philosophy (PhD)
Program
Materials and Nanotechnology
College
Interdisciplinary Studies
Faculty Advisor
Croll, Andrew
Description
The desire for improved adhesive systems led us to examine three geometries: tape loops, crumples, and origami shapes. The tape loop is mechanically interesting because it is stable in more than one configuration. For example, the first configuration is a circular loop. The second is an elongated oval shape that occurs after the loop is pushed into a surface. In this work we examined this cycle and derive a simple mathematical model. We found a solution to the model that only needs one input measurement, that of the loop radius, to determine a tape loop’s adhesion. We explored how a sticky but crumpled film adhered to smooth and rough surfaces. To do this we crumpled inextensible sheets because crumples have been shown to maintain a high compliance while increasing contact area through deforming around obstacles. We found that there was no significant difference in the adhesive behavior of the crumples on rough surfaces compared to flat surfaces. Finally, we designed a switchable adhesive based on thin film origami. We examined a unit cell of the Ron Resch pattern which had two different configurations (open and closed) aided by a 3-D printed device In the closed state the device had a high pull off force, and in the open state a different style of peel off occurred, lowering the peak force. We present promising results that show this to be the case.
Recommended Citation
Elder, Theresa Marie, "Adhesion With Slender Structures: Tape Loops, Crumples, and Origami" (2021). Materials and Nanotechnology. 11.
https://digitalcommons.ndsu.edu/materials-nanotechnology/11
Rights
NDSU policy 190.6.2
Rights Link
https://www.ndsu.edu/fileadmin/policy/190.pdf
Author ORCID Identifier
0000-0002-1165-059X
Handle Identifier
https://hdl.handle.net/10365/32658