Experimental and numerical study on shaping of aluminum sheets with integrated piezoceramic fibers

“…Hereby, the positive locked assembly and the prestressing of the piezoceramics are in the focus of the investigation. Afterwards, the sheet with integrated micro-fibers can additionally be shaped through deep drawing [5]. In [6] the feasibility of combining forming and screen printing for the production of loadbearing sheet metal parts with integrated strain sensors is demonstrated.…”

Section: State Of the Artmentioning

confidence: 99%

Design Approach for Roll Forming of Profiles with Integrated Electrical Conductors

Duschka¹,

Groche²

2015

AMM

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In metal forming a trend is observed towards increasing the performance of products by means of functional integration. One approach being pursued is the integration of electronic components. Multifunctional profiles with electrical conductors can transmit data and energy in addition to the mechanical function. They can be produced efficiently by roll forming. During the roll forming of multifunctional profiles wrinkles and cracks in the conductors may occur in the area of the contact of the rollers due to the contact normal stresses. In this paper, a design approach for multifunctional profiles preventing these failures in the tool contact area is presented and discussed on the basis of experimental and numerical investigations.

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“…Another focus is on sensors in aluminum by integrating pieozceramics [ 20 – 23 ], thermogenerators [ 24 ] or electrical systems [ 25 ] during casting for applications like structural health monitoring. Integrating piezoceramics in aluminum during deep drawing is presented in [ 26 ]. Further materials that have been focused on for sensor integration are boron-nitride-ceramics with integrated thermocouples to measure temperature during the machining of a workpiece [ 27 ] or a gasket with an integrated strain gauge to measure the deformation [ 28 ].…”

Section: Introductionmentioning

confidence: 99%

Investigations on the Impact of Material-Integrated Sensors with the Help of FEM-Based Modeling

Dumstorff

Lang

2015

Sensors

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We present investigations on the impact of material-integrated sensors with the help of finite element-based modeling. A sensor (inlay) integrated with a material (matrix) is always a foreign body in the material, which can lead to a “wound effect”, that is degradation of the macroscopic behavior of a material. By analyzing the inlay's impact on the material in terms of mechanical load, heat conduction, stress during integration and other impacts of integration, this wound effect is analyzed. For the mechanical load, we found out that the inlay has to be at least as stretchable and bendable as the matrix. If there is a high thermal load during integration, the coefficients of the thermal expansion of the inlay have to be matched to the matrix. In the case of a high thermal load during operation, the inlay has to be as thin as possible or its thermal conductivity has to be adapted to the thermal conductivity of the matrix. To have a general view of things, the results are dimensionless and independent of the geometry. In each section, the results are illustrated by examples. Based on all of the results, we present our idea for the fabrication of future material-integrated sensors.

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Experimental and numerical study on shaping of aluminum sheets with integrated piezoceramic fibers

Cited by 16 publications

References 5 publications

Materials in machine tool structures

Materials in machine tool structures

Design Approach for Roll Forming of Profiles with Integrated Electrical Conductors

Investigations on the Impact of Material-Integrated Sensors with the Help of FEM-Based Modeling

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