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Paderborn University in February 2023 Show image information

Paderborn University in February 2023

Photo: Paderborn University, Hannah Brauckhoff

Dmitrij Dreiling, M.Sc.

Contact
Publications
Dmitrij Dreiling, M.Sc.

Measurement Engineering

Research Associate - Identification of material parameters, inverse measurement methods

VCard

Phone:
+49 5251 60-4012
E-mail:
dreiling(at)emt.upb(dot)de
Office:
P1.5.18.3
Visitor:
Pohlweg 47-49
33098 Paderborn

Open list in Research Information System

2022

Differentiation of an SBFE model in the context of material parameter determination

D. Itner, H. Gravenkamp, D. Dreiling, C. Birk, B. Henning, International Association for Computational Mechanics (IACM), 2022


2021

Simulation of guided waves in cylinders subject to arbitrary boundary conditions for applications in material characterization

D. Itner, H. Gravenkamp, D. Dreiling, N. Feldmann, B. Henning, PAMM (2021)

DOI


Efficient semi-analytical simulation of elastic guided waves in cylinders subject to arbitrary non-symmetric loads

D. Itner, H. Gravenkamp, D. Dreiling, N. Feldmann, B. Henning, Ultrasonics (2021), 106389

DOI


On the forward simulation and cost functions for the ultrasonic material characterization of polymers

D. Itner, H. Gravenkamp, D. Dreiling, N. Feldmann, B. Henning, 2021


Tomographie des Schallfelds von Ultraschallwandlern mittels Schlierentechnik

T. Hetkämper, D. Dreiling, L. Claes, B. Henning, in: Fortschritte der Akustik - DAGA 2021, 2021

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Application and modelling of ultrasonic transducers using 1-3 piezoelectric composites with structured electrodes

D. Dreiling, D. Itner, N. Feldmann, C. Scheidemann, H. Gravenkamp, B. Henning, in: Fortschritte der Akustik - DAGA 2021, Deutsche Gesellschaft für Akustik e.V. (DEGA), 2021

Abstract

Waveguide-based methods can be used for the non-destructive determination of acoustic material parameters. One of these methods is based on transmission measurements of cylindrical polymeric specimens. Here, the experimental setup consists of two transducers, which excite and receive the waveguide modes at the faces of the cylinder. The measurement, as well as a forward model, are used to determine material parameters of the polymeric specimen in an inverse approach. 1-3 piezoelectric composites are used as an active element because they can be approximated by a thickness vibration only. This allows an easy identification of Mason model parameters to characterise the transducers’ vibration behaviour. However, sensitivity analysis shows a high uncertainty in the determination of the mechanical shear parameters due to the uniform excitation. To increase the sensitivity to these shear motions, arbitrary excitations were investigated by means of numerical simulation. In order to be able to realise the determined optimal excitation, new transducer prototypes were designed. By subdividing the electrodes of the active element, for example, ring-shaped excitation is feasible. Furthermore, it can be shown that modelling these transducers with a one-dimensional Mason model is sufficient.


Simulation of Guided Waves in Cylinders Subject to Arbitrary Boundary Conditions Using the Scaled Boundary Finite Element Method

D. Itner, H. Gravenkamp, D. Dreiling, N. Feldmann, B. Henning, in: 14th WCCM-ECCOMAS Congress, CIMNE, 2021

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DOI


2020

Increasing the sensitivity in the determination of material parameters by using arbitrary loads in ultrasonic transmission measurements

D. Dreiling, D.T. Itner, N. Feldmann, H. Gravenkamp, B. Henning, AMA Service GmbH, 2020

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DOI


A modular, scalable open-hardware platform for project-based laboratory courses in electrical engineering studies

T. Hetkämper, M. Krumme, D. Dreiling, L. Claes, in: SEFI 48th Annual Conference Proceedings - Engaging Engineering Education, SEFI, 2020, pp. 1309-1313

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2019

A DC bias approach to the characterisation of non-linear material parameters of piezoelectric ceramics

D. Dreiling, N. Feldmann, B. Henning, AMA Service GmbH, 2019

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DOI


Open list in Research Information System

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