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Perspektivenwechsel. Bildinformationen anzeigen

Perspektivenwechsel.

Foto: Universität Paderborn

Sarah Johannesmann, M.Sc.

Kontakt
Publikationen
 Sarah Johannesmann, M.Sc.

Elektrische Messtechnik (EMT)

Wissenschaftliche Mitarbeiterin - Schallfeldsimulation, mehrschichtige Plattenwellenleiter

Telefon:
+49 5251 60-4942
Büro:
P1.5.18.2
Besucher:
Pohlweg 47-49
33098 Paderborn

Liste im Research Information System öffnen

2021

Investigating peculiarities of piezoelectric detection methods for acoustic plate waves in material characterisation applications

L. Claes, H. Schmiegel, C. Grünsteidl, S. Johannesmann, M. Webersen, B. Henning, tm - Technisches Messen (2021), 88(3), pp. 147-155

Acoustic waves in plates have proven a viable tool for testing and material characterisation purposes. There are a multitude of options for excitation and detection of theses waves, such as optical and piezoelectric systems. While optical systems, with thermoelastic excitation and interferometric detection, have the benefit of being contactless, they usually require rather complex and expensive experimental setups. Piezoelectric systems are more easily realised but require direct contact with the specimen and usually have a limited bandwidth, especially in case of piezoelectric excitation. In this work, the authors compare the properties of piezoelectric and optical detection methods for broad-band acoustic signals. The shape (e. g. the displacement) of a propagating plate wave is given by its frequency and wave number, allowing to investigate correlations between mode shapes and received signal strengths. This is aided by evaluations in normalised frequency and wavenumber space, facilitating comparisons of different specimens. Further, the authors explore possibilities to utilise the specific properties of the detection methods to determine acoustic material parameters.


    2020

    Determination of Murnaghan constants of plate-shaped polymers under uniaxial tensile load

    S. Johannesmann, S. Becker, M. Webersen, B. Henning, in: SMSI 2020 - Measurement Science, 2020


    2019

    Analysis of Lamb wave mode repulsion and its implications to the characterisation of adhesive bonding strength

    Y. Lugovtsova, S. Johannesmann, B. Henning, J. Prager, in: 2019 International Congress on Ultrasonics, Acoustical Society of America, 2019


    Störeffektunterdrückung in 2D-Messdaten mittels DiscoGAN

    S. Johannesmann, D. Springer, C. Thiel, B. Henning, in: Fortschritte der Akustik - DAGA 2019, Deutsche Gesellschaft für Akustik, 2019, pp. 1055-1058


    Quantification of frequency-dependent absorption phenomena

    L. Claes, S. Johannesmann, E. Baumhögger, B. Henning, in: 2019 International Congress on Ultrasonics, 2019


    Characterization of the linear-acoustic material behavior of fiber-reinforced composites using lamb waves

    S. Johannesmann, M. Webersen, J. Düchting, L. Claes, B. Henning, in: 45th Annual Review of Progress in Quantitative Nondestructive Evaluation , 2019


    2018

    Guided ultrasonic waves for determining effective orthotropic material parameters of continuous-fiber reinforced thermoplastic plates

    M. Webersen, S. Johannesmann, J. Düchting, L. Claes, B. Henning, Ultrasonics (2018), 84, pp. 53-62


    Einfluss mechanischer Vorspannung auf das mechanische Materialverhalten von Polymeren

    M. Webersen, S. Johannesmann, T. Brockschmidt, F. Rump, L. Claes, B. Henning, 2018


    Akustische Charakterisierung der richtungsabhängigen elastischen Eigenschaften faserverstärkter Kunststoffe

    M. Webersen, S. Johannesmann, J. Düchting, L. Claes, B. Henning, in: Fortschritte der Akustik - DAGA 2018, 2018, pp. 1263-1266


    An acoustic waveguide-based approach to the complete characterisation of linear elastic, orthotropic material behaviour

    S. Johannesmann, J. Düchting, M. Webersen, L. Claes, B. Henning, tm - Technisches Messen (2018), 2018(85), pp. 478-486


    Acoustic material characterization of prestressed, plate-shaped specimens

    S. Johannesmann, T. Brockschmidt, F. Rump, M. Webersen, L. Claes, B. Henning, in: Sensoren und Messsysteme, VDE Verlag GmbH, 2018, pp. 231-234


    2017

    Evaluating the Influence of 3D-Printing Parameters on Acoustic Material Properties

    A. Jäger, S. Johannesmann, L. Claes, M. Webersen, B. Henning, M. Kupnik, in: 2017 IEEE IUS~Proceedings, 2017


    Inverser Ansatz zur akustischen Charakterisierung plattenförmiger Materialproben

    S. Johannesmann, L. Claes, M. Webersen, B. Henning, in: Fortschritte der Akustik - DAGA 2017, Deutsche Gesellschaft für Akustik e.V. 2017, 2017, pp. 999-1002


    Viskoelastizität und Anisotropie von Kunststoffen: Ultraschallbasierte Methoden zur Materialparameterbestimmung

    F. Bause, L. Claes, M. Webersen, S. Johannesmann, B. Henning, tm - Technisches Messen (2017), 84(3)


    Acoustic Material Characterization of Additively Manufactured Components

    L. Claes, A. Jäger, S. Johannesmann, M. Webersen, M. Kupnik, B. Henning, in: PROCEEDINGS -- AMA Conferences 2017, AMA Service GmbH, 2017, pp. 605-610


    2016

    Characterization of Continuous-fiber Reinforced Thermoplastics Using Thermoacoustically Excited Ultrasonic Lamb Waves

    M. Webersen, S. Johannesmann, L. Claes, B. Henning, in: 2016 IEEE IUS~Proceedings, 2016


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