TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. T1 - Scaled Boundary Finite Element Method zur effizienten Simulation geführter Ultraschallwellen T2 - DGZfP-Jahrestagung 2013 T2 - DGZfP-Jahrestagung 2013 CY - Dresden, Germany DA - 2013-05-06 PY - 2013 AN - OPUS4-28550 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. A1 - Birk, C. T1 - Modelling ultrasonic waves in solid waveguides of arbitrary cross-section T2 - AIA-DAGA 2013 Conference on Acoustics T2 - AIA-DAGA 2013 Conference on Acoustics CY - Meran, Italy DA - 2013-03-18 PY - 2013 AN - OPUS4-28551 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Man, H. A1 - Song, Ch. A1 - Birk, C. T1 - Numerical computation of dispersion relations in three-dimensional waveguides T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) CY - Sydney, Australia DA - 2012-12-11 PY - 2012 AN - OPUS4-28495 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Saputra, A. A1 - Birk, C. A1 - Song, Ch. T1 - Numerical modelling of Lamb waves in cracked plates using the scaled boundary finite element method T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) T2 - Australian Conference on the Mechanics of Structures and Materials (ACMSM 22) CY - Sydney, Australia DA - 2012-12-11 PY - 2012 AN - OPUS4-28496 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - The simultion of ultrasonic guided waves using the Scaled Boundary Finite Element Method T2 - Forum Braunschweiger Akustiker T2 - Forum Braunschweiger Akustiker CY - Helmstedt, Germany DA - 2012-05-31 PY - 2012 AN - OPUS4-25995 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Saputra, A. A. A1 - Chongmin, Song T1 - Detection of defects in thin-walled structures by means of Lamb waves T2 - International Congress on Ultrasonics 2011 T2 - International Congress on Ultrasonics 2011 CY - Gdansk, Poland DA - 2011-09-05 PY - 2011 AN - OPUS4-24332 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. T1 - Numerical computation of dispersion relations in wave guides T2 - GAMM 2012, 83rd Annual Meeting of the International Association of Applied Mathematics and Mechanics T2 - GAMM 2012, 83rd Annual Meeting of the International Association of Applied Mathematics and Mechanics CY - Darmstadt, Germany DA - 2012-03-26 PY - 2012 AN - OPUS4-26220 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Song, C. T1 - Numerische Berechnung der Dispersionseigenschaften von Lambwellen in Platten mit beliebiger Materialzusammensetzung T2 - DAGA 2012. 38. Jahrestagung für Akustik T2 - DAGA 2012. 38. Jahrestagung für Akustik CY - Darmstadt, Germany DA - 2012-03-19 PY - 2012 AN - OPUS4-26221 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - Scaled Boundary Finite Element Method zur Simulation geführter Ultraschallwellen T2 - IZFP Seminar 2013 T2 - IZFP Seminar 2013 CY - Saarbrücken, Germany DA - 2013-07-15 PY - 2013 AN - OPUS4-29001 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - Numerische Methoden zur Simulation geführter Ultraschallwellen T2 - Doktorandenkolloquium des Institutes für Konstruktionstechnik der TU Braunschweig T2 - Doktorandenkolloquium des Institutes für Konstruktionstechnik der TU Braunschweig CY - Braunschweig, Germany DA - 2013-08-15 PY - 2013 AN - OPUS4-29002 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, C. A1 - Prager, Jens T1 - Computation of dispersion relations in wave guides of arbitrary cross section T2 - World Congress on Computational Mechanics (WCCM) 2012 T2 - World Congress on Computational Mechanics (WCCM) 2012 CY - São Paulo, Brazil DA - 2012-07-08 PY - 2012 AN - OPUS4-26718 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Mahbube, Subhani A1 - Li, J. A1 - Bijan, Samali T1 - Effect of elastic modulus and Poisson´s ratio on guided wave dispersion using transversely isotropic material modelling T2 - SHATIS, International Conference on Structural Health Assessment of Timber Structures T2 - SHATIS, International Conference on Structural Health Assessment of Timber Structures CY - Trento, Italy DA - 2013-09-04 PY - 2013 AN - OPUS4-29744 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Birk, C. A1 - Song, Ch. T1 - Modeling ultrasonic guided waves in embedded structures using the Scaled Boundary Finite Element Method T2 - APCOM, 5TH ASIA PACIFIC CONGRESS ON COMPUTATIONAL MECHANICS T2 - APCOM, 5TH ASIA PACIFIC CONGRESS ON COMPUTATIONAL MECHANICS CY - Singapore DA - 2013-12-11 PY - 2013 AN - OPUS4-29155 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Birk, C. A1 - Song, C. T1 - Simulation of guided waves in solids using the Scaled Boundary Finite Element Method T2 - Wolrd Congress on Computational Mechanics, WCCM 2014 T2 - Wolrd Congress on Computational Mechanics, WCCM 2014 CY - Barcelona (Spanien) DA - 2014-07-20 PY - 2014 AN - OPUS4-31990 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Bause, F. A1 - Rautenberg, J. A1 - Henning, B. T1 - Model based sensitivity analysis in the determination of viscoelastic material properties using transmission measurements through circular waveguides T2 - International Congress on Ultrasonics 2015 T2 - International Congress on Ultrasonics 2015 CY - Metz, Frankreich DA - 2015-05-10 PY - 2015 AN - OPUS4-33196 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Krome, Fabian T1 - Simulation von Ultraschallwellen in ausgedehnten Strukturen T2 - DACH-Jahrestagung Salzburg 2015 T2 - DACH-Jahrestagung Salzburg 2015 CY - Salzburg, Österreich DA - 2015-05-11 PY - 2015 AN - OPUS4-33197 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - Modelling ultrasonic waves using the Scaled Boundary Finite Element T2 - Seminar in mechanical engineering, Indian Institute of Technology T2 - Seminar in mechanical engineering, Indian Institute of Technology CY - Chennai (Indien) DA - 2015-04-06 PY - 2015 AN - OPUS4-33567 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, Ch. A1 - Birk, C. T1 - Numerical modeling of waveguides embedded in infinite media T2 - International Congress on Sound and Vibration 2015 T2 - International Congress on Sound and Vibration 2015 CY - Firenze (Italien) DA - 2015-07-12 PY - 2015 AN - OPUS4-33740 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke T1 - Die Scaled Boundary Finitie Element Method zur Simultaion von Ultraschallwellen T2 - Seminar für Numerische Mathematik und Mechanik, Universität Duisburg-Essen T2 - Seminar für Numerische Mathematik und Mechanik, Universität Duisburg-Essen CY - Essen DA - 2015-06-29 PY - 2015 AN - OPUS4-33566 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, Ch. T1 - Modeling wave propagation in large structures using the Scaled Boundarx Finite Element Method T2 - 13th US National Congress on Computational Mechanics T2 - 13th US National Congress on Computational Mechanics CY - San Diego (USA) DA - 2015-07-26 PY - 2015 AN - OPUS4-33785 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Gravenkamp, Hauke A1 - Song, Ch. A1 - Nararajan, S. A1 - Talebi, H. A1 - Saputra, A. A1 - Ooi, E. T. T1 - A Semi-analytical Displacement Based Formulation of Arbitrary Polyhedral Elements T2 - 13th US National Congress on Computational Mechanics T2 - 13th US National Congress on Computational Mechanics CY - San Diego (USA) DA - 2015-07-26 PY - 2015 AN - OPUS4-33786 LA - deu AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Lozano, Daniel A1 - Bulling, Jannis A1 - Gravenkamp, Hauke A1 - Prager, Jens A1 - Birk, Carolin T1 - The SBFEM to simulate the scattering of ultrasonic guided waves interacting with defects in plate structures N2 - In the field of guided waves for non-destructive testing, the interaction of these waves with damages or other discontinuities in a structure is critical. When a guided wave mode travels and hits a defect, it scatters in all directions, converting to other modes and reflecting the existing one. These interactions are captured in scattered far field complex amplitudes. The amplitudes are stored in scattering matrices, which characterise the elastodynamic behaviour of a defect completely. Scattering matrices are also useful to simulate backpropagation from a defect using ray-tracing methods. Simulating these interactions is challenging, and analytical solutions only exist for simple geometries. Still, using general tools like the finite element method results in large, usually costly models. Recently, researchers proposed a method based on a numerical implementation of the Kirchhoff–Helmholtz integral that allows the computation of the scattering matrices using a model containing only the damaged region. However, classical methods to resolve the far field and low-order elements were used, leading to large models yet more efficient than using other techniques. We propose using the SBFEM as an alternative to enhance the computation of the far field scattering. The damaged region is discretised using high-order polyhedral elements, while the far field is constructed using a modified version of the SBFEM. Examples compared to the literature demonstrate the validity of the approach. T2 - Doktorandentreffen CY - Attendorn, Germany DA - 16.10.2023 KW - SBFEM KW - Guided Waves KW - Scattering PY - 2023 AN - OPUS4-59775 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -