Share Email Print

Proceedings Paper

Characterizing nitinol wire bond strength in silicone for artificial skin muscles
Author(s): Paul Mazza; Michael Milenski; Anthony D. Santamaria; Moochul Shin
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

This study examines the bonding force between Nitinol wire and silicone polymer. The purpose is to understand the feasibility and limitations of using nitinol wire as an actuator in artificial skin. This study improves upon previous work, which studied silicone embedded nitinol and expands its scope by looking deeper into the wire/polymer configuration, and manufacturing process which can lead to air bubbles at the wire/silicone interface. Prior results were less consistent due to the presence of tiny bubbles in samples, which lead to variable maximum pulling forces between tests. This study addresses this issue, and improves the manufacturing process, so that the capacity of the bonding between wires and polymers can be increased.This is accomplished by using an injection molding method preceded by a vacuum stage.When samples are manufactured and tested with the improved method there is a significant improvement in the strength and consistency of results. A maximum pull force improvement of 32% was seen in the vacuum prepared samples. This lays the foundation for developing computer simulations of the artificial skin using experimentally verified data. Future work will continue to address the manufacturing process, material variants, as well as checking the effect of different wire diameters and materials. All this data will go into developing a predictive numerical model using commercial finite element analysis software, which will assist in the creation of more complex shapes of controllable artificial skin. These complex wire/polymer configurations will be used to address current biomedical issues, such as facial paralysis, and assisting burn victims, or in humanoid robotics.

Paper Details

Date Published: 27 March 2018
PDF: 6 pages
Proc. SPIE 10593, Bioinspiration, Biomimetics, and Bioreplication VIII, 1059310 (27 March 2018);
Show Author Affiliations
Paul Mazza, Western New England Univ. (United States)
Michael Milenski, Western New England Univ. (United States)
Anthony D. Santamaria, Western New England Univ. (United States)
Moochul Shin, Western New England Univ. (United States)

Published in SPIE Proceedings Vol. 10593:
Bioinspiration, Biomimetics, and Bioreplication VIII
Akhlesh Lakhtakia, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?