Parker Rosquist, Brigham Young University
Engineering
This paper presents a newly discovered class of foam-based nano-composite materials with self-sensing properties. By embedding nano-particles in high-elongation foams, materials are created that display piezoelectric characteristics when any deformation is applied. When used in place of regular padding materials, they become impact sensors for a range of applications. The physics behind the phenomenon, and the optimization of the material response, are explored in this article.
The need for self-sensing padding is particularly relevant in the area of athletics. Research is presented regarding the use of these foam sensors in contact sports, such as football, in order to help detect and prevent concussive injuries. Concussions are an increasing problem in professional sports which have led to the development of several sensors that can be used during live play. However, because of the limitations for these sensors, true accurate readings are still difficult to ascertain; the research on these foam sensors can lead to improved methods of reading real-time reaction forces which will aid athletic teams in preventing and diagnosing sport related injuries.