Authors:

Newt Fey

Date Created:

Not specified

Course Title:

Professor:

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About Paper:

Mitigating vibrations has a wide variety of applications from earthquake defense to protecting victims in otherwise devastating car accidents. For decades, vibration attenuation technology has been limited to dampeners and such devices. While effective, to actively reduce vibrations in bike helmets or the bumper of a car, these solutions are bulky and prone to defects after prolonged use. Smart structures, materials that can manage vibration control autonomously and actively in response to their environment, are able to stiffen and soften to counteract vibration waves, thus preventing damage while also being lightweight and compact. This tunable stiffness is the key to mitigating vibrations. In this study, we use mechanical stress testing and the application of a magnetic field to characterize the stiffness of ferroelastomers with different wt% filler ratios. We use silicon molds to produce our samples composed of silicone and iron particles. We apply horizontal and vertical magnetic fields and observe the change in stiffness. In the future, we plan to create samples of a complex geometry using the most effective wt% composition. By embedding magnetic filler particles in an elastomer, we will be able to fabricate a ferroelastic metastructure whose stiffness we can manipulate by applying a magnetic field.

Source:

Purdue University / 2023

Topics:

No topics listed

Co-authors:

Newt Fey