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Autor

  • Tkachenko, Viktoriya (4)
  • Habel, Wolfgang (3)
  • Basedau, Frank (2)
  • Hofmann, Detlef (2)
  • Schukar, Vivien (2)
  • Bazrafshan, K. (1)
  • Döring, H. (1)
  • Gabler, M. (1)
  • Großwig, S. (1)
  • Jentsch, H. (1)
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Erscheinungsjahr

  • 2013 (2)
  • 2012 (1)
  • 2011 (1)

Schlagworte

  • Embedded sensors (2)
  • Structural health monitoring (2)
  • Validation (2)
  • Composite materials (1)
  • Early damage detection (1)
  • Engineering (1)
  • Fiber Bragg gratings (FBG) (1)
  • Fiber reinforced polymers (FRP) (1)
  • Fibre optic sensors (1)
  • Geotechnical soil stability (1)
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How do application-related issues influence the reliability of fiber optic strain measurements? (2011)
Habel, Wolfgang ; Schukar, Vivien ; Tkachenko, Viktoriya
Fibre optic strain sensors are increasingly used and sensor systems are provided with specifications. Even if the performance is well specified, the strain characteristics of the sensor, strain transfer factor, mechanical stability under thermal influences, the performance of applied strain sensors can seriously differ from virgin sensor's the performance. The contribution will focus on issues that can deteriorate the sensor function or reduce the reliability of measurement results. Aspects are considered how to come to reliable strain measurements and how to validate strain measurements of applied sensors. Related to this topic, European activities like the recently started European COST TD1001 action, called (OfSeSa) will be presented.
Automatically produced FRP beams with embedded FOS in complex geometry: process, material compatibility, micromechanical analysis, and performance tests (2012)
Gabler, M. ; Tkachenko, Viktoriya ; Küppers, S. ; Kuka, G.G. ; Habel, Wolfgang ; Milwich, M. ; Knippers, J.
The main goal of the presented work was to evolve a multifunctional beam composed out of fiber reinforced plastics (FRP) and an embedded optical fiber with various fiber Bragg grating sensors (FBG). These beams are developed for the use as structural member for bridges or industrial applications. It is now possible to realize large scale cross sections, the embedding is part of a fully automated process and jumpers can be omitted in order to not negatively influence the laminate. The development includes the smart placement and layout of the optical fibers in the cross section, reliable strain transfer, and finally the coupling of the embedded fibers after production. Micromechanical tests and analysis were carried out to evaluate the performance of the sensor. The work was funded by the German ministry of economics and technology (funding scheme ZIM). Next to the authors of this contribution, Melanie Book with Röchling Engineering Plastics KG (Haren/Germany) and Katharina Frey with SAERTEX GmbH & Co. KG (Saerbeck/Germany) were part of the research group.
Detection of slipping soil areas with embedded tiny vertical sensing rods (2013)
Jentsch, H. ; Schwartz, A. ; Basedau, Frank ; Bazrafshan, K. ; Döring, H. ; Großwig, S. ; Hofmann, Detlef ; Kowalle, G. ; Kusche, Nadine ; Lorenz, R. ; Pfeiffer, T. ; Sadaghiani, M.R.S. ; Scholz, E. ; Senze, A. ; Tkachenko, Viktoriya ; Witt, K. J.
Values gained from composite-embedded sensor fibres - trustworthy results or vague estimations; possibilities and limitations of getting reliable measurement results (2013)
Habel, Wolfgang ; Schukar, Vivien ; Tkachenko, Viktoriya ; Hofmann, Detlef ; Basedau, Frank
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