Using Embedded Micromachines to Enhance the Properties of Materials

We have recently demonstrated that composites with unique properties can be manufactured by embedding many small, passive, simple machines in a matrix in place of the fibers. We have been referring to these as Machine Augmented Composites (MAC). The simple machines modify the forces inside the material in a manner chosen by the material designer. The MAC concept and the results of both theoretical and experimental studies will be described. It will be shown that the MAC fundamentally converts shear forces into compressive forces and vice versa, which naturally leads to potential applications for the material in clamping mechanisms, fasteners, gaskets, seals, and vibration damping.