28 citations · 83 across the 7 of their papers we have counts for
7 papers
Electroelastic guided wave dispersion in piezoelectric plates: spectral methods and laser-ultrasound experiments
Daniel A. Kiefer, Georg Watzl, Katharina Burgholzer +2
Electroelastic waves in piezoelectric media are widely used in sensing and filtering applications. Despite extensive research, computing the guided wave dispersion remains challeng…
Extreme wave skewing and dispersion spectra of anisotropic elastic plates
Daniel A. Kiefer, Sylvain Mezil, Claire Prada
Guided wave dispersion is commonly assessed by Fourier analysis of the field along a line, resulting in frequency-wavenumber dispersion curves. In anisotropic plates, a point sourc…
Supersonic shear wave imaging in stretched soft strips: modeling for quantitative elastography
Alexandre Delory, Daniel A. Kiefer, Claire Prada +1
Objective - Shear wave elastography has enriched ultrasound medical imaging with quantitative measurements of tissue stiffness. However, this method still suffers from some limitat…
Notes on osculations and mode tracing in semi-analytical waveguide modeling
Hauke Gravenkamp, Bor Plestenjak, Daniel A. Kiefer
The dispersion curves of (elastic) waveguides frequently exhibit crossings and osculations (also known as veering, repulsion, or avoided crossing). Osculations are regions in the d…
Viscoelastic dynamics of a soft strip subject to a large deformation
Alexandre Delory, Daniel A. Kiefer, Maxime Lanoy +3
To produce sounds, we adjust the tension of our vocal folds to shape their properties and control the pitch. This efficient mechanism offers inspiration for designing reconfigurabl…
Beating resonance patterns and extreme power flux skewing in anisotropic elastic plates
Daniel A. Kiefer, Sylvain Mezil, Claire Prada
Elastic waves in anisotropic media can exhibit a power flux that is not collinear with the wave vector. This has notable consequences for waves guided in a plate. Through laser-ult…
Computing zero-group-velocity points in anisotropic elastic waveguides: Globally and locally convergent methods
Daniel A. Kiefer, Bor Plestenjak, Hauke Gravenkamp +1
Dispersion curves of elastic waveguides exhibit points where the group velocity vanishes while the wavenumber remains finite. These are the so-called zero-group-velocity (ZGV) poin…