Zobrazeno 1 - 10
of 142
pro vyhledávání: '"Rolf Lammering"'
Publikováno v:
Acoustics, Vol 5, Iss 1, Pp 136-164 (2023)
Lamb waves occur in thin-walled structures in two wave modes—the symmetric and the antisymmetric mode. Their oscillation on the structures‘ surfaces is either in phase (symmetric) or shifted by a phase angle of π (antisymmetric). In this work, a
Externí odkaz:
https://doaj.org/article/9298edcc3c7b4e48ba3ecb57fac76ec6
Autor:
Andrey Mikhaylenko, Natalie Rauter, Nanda Kishore Bellam Muralidhar, Tilmann Barth, Dirk A. Lorenz, Rolf Lammering
Publikováno v:
Acoustics, Vol 4, Iss 3, Pp 517-537 (2022)
Guided ultrasonic waves are suitable for use in the context of structural health monitoring of thin-walled, plate-like structures. Hence, observing the wave propagation in the plates can provide an indication of whether damage has occurred in the str
Externí odkaz:
https://doaj.org/article/1c494902f17a4e90bb400ec99f35a4dc
Autor:
Nanda Kishore Bellam Muralidhar, Natalie Rauter, Andrey Mikhaylenko, Rolf Lammering, Dirk A. Lorenz
Publikováno v:
Modelling, Vol 2, Iss 4, Pp 591-608 (2021)
This paper focuses on parametric model order reduction (PMOR) of guided ultrasonic wave propagation and its interaction with damage in a fiber metal laminate (FML). Structural health monitoring in FML seeks to detect, localize and characterize the da
Externí odkaz:
https://doaj.org/article/cf3fa77d58c3414f89c848a116d7a7f0
Publikováno v:
Applied Sciences, Vol 13, Iss 15, p 8971 (2023)
Methodologies are developed for analyzing failure initiation and crack propagation in highly heterogeneous concrete mesostructures. Efficient algorithms are proposed in Python to generate and pack geometric features into a continuous phase. The conti
Externí odkaz:
https://doaj.org/article/cf9087e41c3345b58baec4c6cce3a526
Publikováno v:
Nanocomposites, Vol 7, Iss 1, Pp 200-214 (2021)
A new class of single walled carbon nanotubes (SWCNT)/epoxy resin ink in dimethylacetamide is successfully printed using a piezo-driven jet valve dispensing system for the fabrication of flexible nanocomposites. The optimised ink prepared by solution
Externí odkaz:
https://doaj.org/article/36ab2c616d8141ca8373e694a042ecff
Autor:
Liv Rittmeier, Thomas Roloff, Natalie Rauter, Andrey Mikhaylenko, Jan Niklas Haus, Rolf Lammering, Andreas Dietzel, Michael Sinapius
Publikováno v:
Materials, Vol 15, Iss 19, p 6752 (2022)
Structural health monitoring systems for composite laminates using guided ultrasonic waves become more versatile with the structural integration of sensors. However, the data generated within these sensors have to be transmitted from the laminate to
Externí odkaz:
https://doaj.org/article/2399aa441b294cea818b9f28a2246720
Publikováno v:
PAMM. 23
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c4c84edd53ae80c45b076b3eda8850cb
https://doi.org/10.1002/pamm.202200181
https://doi.org/10.1002/pamm.202200181
Publikováno v:
PAMM. 22
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::150ece266cef68b5fb6ba9a1a08cd53c
https://doi.org/10.1002/pamm.202200020
https://doi.org/10.1002/pamm.202200020
Autor:
Max Linke, Rolf Lammering
Cohesive zone models are commonly used to numerically model fracture phenomena on the microscale. Typical fracture processes are described experimentally via the Double Cantilever Beam test and the End Notched Flexure test on the macroscale. Analytic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::792c3c4dc06916620850292443cf4b9b
https://doi.org/10.21203/rs.3.rs-2288124/v2
https://doi.org/10.21203/rs.3.rs-2288124/v2
Autor:
Max Linke, Rolf Lammering
For the evaluation of the double cantilever beam (DCB) test several approaches are applicable that can provide different results. This ambiguity can significantly affect numerical models which refer to experimentally obtained material parameters. In
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eeb3157788f821af004e837ecd6d6f77
https://doi.org/10.21203/rs.3.rs-2288150/v1
https://doi.org/10.21203/rs.3.rs-2288150/v1