Multi-function structure
Multi function material is a composite material. The traditional approach to the development of structures is to address the loadcarrying function and other functional requirements separately. Recently, however, there has been increased interest in the development of load-bearing materials and structures which have integral non-load-bearing functions, guided by recent discoveries about how multifunctional biological systems work[1].
Introduction
With conventional structural materials, it has been difficult to achieve simultaneous improvement in multiple structural functions, but the increasing use of composite materials has been driven in part by the potential for such improvements. The multi-functions can vary from mechanical to electrical and thermal functions. The most widely used composites have polymer matrix materials, which are typically poor conductors. Enhanced conductivity could be achieved with reinforcing the composite with carbon nanotubes for instance.[2][3]
Functions
Among the many functions that can be attained are Electrical/thermal conductivity, Sensing and actuation, Energy harvesting/storage, Self-healing capability, Electromagnetic interference (EMI)shielding and recyclability and biodegradability.
Applications
Touchscreens Smart structures[4] are one of many applications.
References
- ^ A review of recent research on mechanics of multifunctional composite, Journal of Composite Structures 92 (2010) 2793–2810
- ^ "Sensors and actuators based on carbon nanotubes and their composite" J. Composites Science and Technology 68 (2008) 1227–1249
- ^ Challenges and opportunities in multifunctional nanocomposite structures for aerospace applications. MRS Bull 2007;32(4):324-34
- ^ http://science.howstuffworks.com/engineering/structural/smart-structure.htm