Adaptive, tolerant and efficient composite structures by Martin Wiedemann, Michael Sinapius

By Martin Wiedemann, Michael Sinapius

Composite constructions are best in functionality and construction price whilst mixed with shrewdpermanent fabrics making them adaptable to altering operational stipulations.
The particular construction tactics of composites supply the prospect to combine extra capabilities hence making the constitution extra helpful. lively capabilities may be learned by means of shrewdpermanent fabrics, e.g. morphing, lively vibration regulate, lively constitution acoustic regulate or constitution overall healthiness tracking. the basis is a valid figuring out of fabrics, layout tools, layout ideas, creation applied sciences and adaptronics. alongside the whole procedure chain this disciplines jointly bring complicated light-weight recommendations for purposes starting from mechanical engineering to autos, airframe and eventually area constructions.
This ebook presents the clinical foundations in addition to inspiring new principles for engineers operating within the box of composite light-weight structures.

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This causes quality problems resulting in deviations of the actuator characteristics. Also the production and the following sintering process of PZT fibers are very cost intensive. An alternative manufacturing process uses commercially available PZT-wafers that are cut into ribbons. In this case the wafer is placed on a tacky film and cut with a wafer saw that is common within the production of silicon based integrated circuits. With this automated process the rectangular fibers or ribbons are aligned exactly in parallel.

The problem is that due to the dielectric losses of the surrounding polymer the actuator performance is very poor. Possible applications are thin sensor sheets with minimal impact on the host structure. The properties of the various designs differ with regard to voltage range, size, exact maximum strain and force. But at least it is the piezoceramic material and the operation mode that determines the performance. Therefore it is reasonable to look at some exemplary properties of d31- and d33-piezo composites that were derived using Macro Fiber Composite actuators from Smart Material GmbH.

Adaptronic Congress, Wolfsburg, Germany (2003) 7. : Untersuchung von magnetostriktiven Partikeln zur Detektion von Eigenspannungen in CFK-Polymermatrices. Diplomarbeit, Universität Magdeburg (2011) 8. : Magnetostrictive properties of epoxy resins modified with Terfenol-D particles for detection of internal stress in CFRP—Part 1: materials and Processes. J. Mater. Sci. submitted (2012) Chapter 3 Piezocomposite Transducers for Adaptive Structures Peter Wierach Abstract Low profile actuators are a basic technology for smart structures.

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