Production Engineering

, Volume 8, Issue 1–2, pp 63–72 | Cite as

A method to detect the level and direction of mechanical forces with the aid of load-induced martensitic phase transformation

  • Bernd-Arno Behrens
  • Hans Jürgen Maier
  • Friedrich-Wilhelm Bach
  • Wilfried Reimche
  • Grzegorz Mroz
  • Jens SchrödterEmail author
  • Jan Jocker
Production Process


Information on the mechanical load which has been applied on a component during its lifecycle is becoming more and more interesting in order to assist the development of new generations of lightweight components. To collect this information from a large number of components in the field, cost-effective sensor techniques are required. The idea of the research presented in this paper is to qualify the base material of a component itself as a sensor. Load-induced changes in the microstructure of metastable austenitic sheet metals at the basis for this idea. Capabilities of increasing the sensitivity related to load-induced martensite phase transformations with the aid of metal forming operations as well as an approach to detect the direction of mechanical forces using embossed sensor fields are presented. The development of sensor fields based on FE-simulation as well as the results of experimental tests are discussed.


Load detection Martensite Phase transformation Austenitic steel Eddy current testing Metal forming Sheet metal Embossing 



The authors would like to thank the German Research Foundation (DFG) for funding the Collaborative Research Centre CRC 653. The work presented within this paper was part of the CRC Subprojects S2 and S3.


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Copyright information

© German Academic Society for Production Engineering (WGP) 2013

Authors and Affiliations

  • Bernd-Arno Behrens
    • 1
  • Hans Jürgen Maier
    • 2
  • Friedrich-Wilhelm Bach
    • 2
  • Wilfried Reimche
    • 2
  • Grzegorz Mroz
    • 2
  • Jens Schrödter
    • 1
    Email author
  • Jan Jocker
    • 1
  1. 1.Institute of Forming Technology and MachinesLeibniz Universität HannoverGarbsenGermany
  2. 2.Institute of Materials ScienceLeibniz Universität HannoverGarbsenGermany

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