R
Rolf Lammering
Researcher at Helmut Schmidt University
Publications - 133
Citations - 1569
Rolf Lammering is an academic researcher from Helmut Schmidt University. The author has contributed to research in topics: Lamb waves & Finite element method. The author has an hindex of 20, co-authored 122 publications receiving 1316 citations.
Papers
More filters
Journal ArticleDOI
Stress-induced transformation behavior of a polycrystalline NiTi shape memory alloy: micro and macromechanical investigations via in situ optical microscopy
TL;DR: In this article, an experimental investigation of the micro and macromechanical transformation behavior of polycrystalline NiTi shape memory alloys was undertaken, focusing on macroscopic banding, variant microstructure, effects of cyclic loading, strain rate and temperature effects.
BookDOI
Lamb-Wave based Structural Health Monitoring in Polymer Composites
TL;DR: Deutsche Forschungsgemeinschaft: "Integrierte Bauteiluberwachung in Faserverbunden durch Analyse von Lambwellen nach deren gezielter Anregung durch piezokeramische Flachenaktoren".
Journal ArticleDOI
Multi-field variational formulations and related finite elements for piezoelectric shells
TL;DR: In this article, a three-field variational formulation for a Reissner-Mindlin shallow shell element formulation is presented in analogy to the Hu-Washizu principle, where the dielectric displacement is formulated as an additional degree of freedom.
Journal ArticleDOI
Impact Damage Detection in Composite Structures Considering Nonlinear Lamb Wave Propagation
Natalie Rauter,Rolf Lammering +1 more
TL;DR: In this paper, the second harmonic generation is used to analyze composite specimens for impact damages, and the results of the relative acoustical nonlinearity parameter are compared to the development of the group velocity due to impact damages.
Journal ArticleDOI
On the detection of fatigue damage in composites by use of second harmonic guided waves
TL;DR: In this paper, a nonlinear wave propagation based on the cumulative second harmonic Lamb wave generation is used to detect micro-structural damage and the corresponding material degradation experimentally, and the numerical analysis shows a higher harmonic mode generation due to the interaction of the waves and the cracks and an increasing nonlinear effect with increasing crack sizes and numbers.