INSTABILITY-AUGMENTED DESIGN OF MICROSTRUCTURED MAGNETOACTIVE ELASTOMER COMPOSITES
Abstract
Soft magnetoactive materials can change their properties and undergo extremely large deformations when excited by magnetic stimuli. These “artificial muscles” hold a great potential for a large variety of applications from sensing devices to energy harvesting, and noise and vibration mitigation. However, these materials operate at high magnetic fields, thus, limiting potential application of the technology. A promising approach to significantly enhance the magneto-mechanical performance, and reduce the required magnetic field, is to design soft magnetoactive composites through architectured microstructures. Highly ordered microstructures are an origin for multiscale magnetomechanical instabilities and possible failure of the materials. In this research proposal, we directly address this crucial aspect for MAE-based technology. Our strategy is to take the risk of operating MAEs in the unstable regime with predesigned instability developments. This novel MAE design concept will capitalize on controllable cascade microstructure transformations while attempting to avoid catastrophic failure. If successful, this concept will open a new avenue in design of morphing magnetoactive materials with new functionalities and superior performance. To achieve this ambitious goal, we will develop multiscale theoretical and computational frameworks to reveal and to predict the behavior of possible advantageous microstructures in the extreme regimes. If successful, we will fill the gap in magnetomechanical multiscale instability phenomena, and will significantly advance the frontier of the knowledge about MAE behavior
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Aug 11, 2021
- Source ID
- FA86552017003
Entities
People
- Stephan Rudykh
Organizations
- Air Force Office of Scientific Research
- United States Air Force
- University of Luxembourg