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Investigators from Technical University Have Reported New Data on Sensor Research (Evaluation of Actuator, Sensor, and Fatigue Performance of...

July 8, 2014

Investigators from Technical University Have Reported New Data on Sensor Research (Evaluation of Actuator, Sensor, and Fatigue Performance of Piezo-Metal-Composites)

By a News Reporter-Staff News Editor at Journal of Technology -- Investigators publish new report on Sensor Research. According to news reporting originating in Chemnitz, Germany, by VerticalNews journalists, research stated, "Fabrication technologies for multilayer-composites with sensor and actuator functionality were proposed in a previous study. Inside the compounds, macro-fiber-composites (MFCs) are embedded in a layer of epoxy adhesive between two outer aluminum sheets."

The news reporters obtained a quote from the research from Technical University, "Forming takes place while the adhesive is still in an uncured state. Relative displacements between the layers and the MFC is possible, which reduces friction loads for the brittle piezoceramic fibers of the MFC. This paper deals with the experimental and numerical characterization of the actuator and sensor functionality dependent on different bending radii and additionally the fatigue behavior of the compounds. The sensor functionality is tested with a shaker, which initiates a defined deflection. The electric response of the integrated MFC is measured and simulated by use of an analytical sensor function model based on strain components. The actuator performance, measured with a distance laser sensor, is modeled with a voltage-temperature-analogy and compared with values from the experiment. The fatigue behavior and the performance reduction of embedded MFC are investigated with cyclic four-point-bending loading. Loads near and above the elastic limit of the sheet metals cause a higher delamination tendency. Specimens that are loaded at a reasonable distance from the elastic limit reach the high cycle fatigue limit of 2.0E + 06 cycles."

According to the news reporters, the research concluded: "Thus, the production method for multilayer-composites with embedded piezoceramic fiber modules discussed in this paper is suitable for the manufacturing of structural parts that undergo a high number of load cycles."

For more information on this research see: Evaluation of Actuator, Sensor, and Fatigue Performance of Piezo-Metal-Composites. IEEE Sensors Journal, 2014;14(7):2129-2137. IEEE Sensors Journal can be contacted at: Ieee-Inst Electrical Electronics Engineers Inc, 445 Hoes Lane, Piscataway, NJ 08855-4141, USA. (Institute of Electrical and Electronics Engineers -; IEEE Sensors Journal -

Our news correspondents report that additional information may be obtained by contacting W.G. Drossel, Technical Univ Chemnitz, D-09126 Chemnitz, Germany. Additional authors for this research include S. Hensel, M. Nestler and L. Lachmann.

Keywords for this news article include: Europe, Germany, Chemnitz, Sensor Research

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Source: Journal of Technology

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