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Integration in sheet metal structures

Integration in Blechstrukturen
: Bosse, Stefan; Lehmhus, Dirk; Drossel, Welf-Guntram; Müller, Roland; Nestler, Matthias; Hensel, Sebastian


Bosse, S.:
Material-Integrated Intelligent Systems. Technology and Applications
Weinheim: Wiley-VCH, 2018
ISBN: 978-3-527-33606-7 (Print)
ISBN: 978-3-527-67925-6
ISBN: 978-3-527-67926-3
ISBN: 978-3-527-67923-2
ISBN: 978-3-527-67924-9
Book Article
Fraunhofer IWU ()
fiber-reinforced structure; forming operation; macrofiber composite functionality; piezoceramic actuator; piezoceramic foil transducer; piezoceramic sensors; piezomodules integration; sheet metal part

The direct integration of piezoceramic foil transducers into fiber-reinforced structures can be adapted to generate a highly efficient production process for active sheet metal parts with integrated piezoceramic sensors and actuators. The basic idea is the integration of piezomodules in a semifinished part in a way that allows a subsequent forming without loss of its functionality. Therefore, a relative movement between piezomodule and sheet metals has to be ensured during the forming operation. Forming operations induce strains in the sheet metal. A fixed joint between piezomodule and sheet metal would lead to a damage of the piezoceramic fibers. For forming operations with a double curvature of lower radii, a test of the macrofiber composite (MFC) functionality is required. The elastic material properties of MFC can be retrieved in a homogenization step. The inelastic behavior can be evaluated with tension tests.