Huber, Armin (2020) Numerische Modellierung von geführten Wellen in anisotropen Kompositen mit Anwendung in der Luft-gekoppelten Ultraschallprüfung. Verteidigungsvortrag zur Dissertation, 2020-12-16, Augsburg, Deutschland.
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Abstract
This presentation is about the physics of ultrasonic guided waves in multilayered anisotropic composites. The Stiffness Matrix Method (SMM) is presented, and its implementation into the Dispersion Calculator (DC) is reported. The DC allows the calculation of guided wave dispersion diagrams and mode shapes for laminates containing several hundreds of layers with high efficiency and robustness. A new method of Lamb wave-based non-destructive inspection using an a priori calculated excitation angle map is presented. The Adaptive Slanted Reflection Mode (ASRM) allows the optimal excitation of Lamb waves in CFRP components with varying layups and curvature gradients. The robotic Adaptive End Effector (AEE) enables the in-line adaptation of the Lamb wave excitation angle during the scanning. The ASRM proves superior to the conventional non-adaptive Focused Slanted Reflection Mode (FSRM).
Item URL in elib: | https://elib.dlr.de/139821/ | ||||||||
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Document Type: | Conference or Workshop Item (Speech) | ||||||||
Title: | Numerische Modellierung von geführten Wellen in anisotropen Kompositen mit Anwendung in der Luft-gekoppelten Ultraschallprüfung | ||||||||
Authors: |
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Date: | 16 December 2020 | ||||||||
Refereed publication: | Yes | ||||||||
Open Access: | Yes | ||||||||
Gold Open Access: | No | ||||||||
In SCOPUS: | No | ||||||||
In ISI Web of Science: | No | ||||||||
Page Range: | pp. 1-24 | ||||||||
Status: | Published | ||||||||
Keywords: | Ultrasonics, Guided waves, Lamb waves, Multilayered composites, Numerical modeling, Stiffness matrix method, Software, Dispersion Calculator, Non-destructive inspection, Adaptive End Effector, Adaptive Slanted Reflection Mode | ||||||||
Event Title: | Verteidigungsvortrag zur Dissertation | ||||||||
Event Location: | Augsburg, Deutschland | ||||||||
Event Type: | Other | ||||||||
Event Date: | 16 December 2020 | ||||||||
Organizer: | Universität Augsburg | ||||||||
HGF - Research field: | Aeronautics, Space and Transport | ||||||||
HGF - Program: | Aeronautics | ||||||||
HGF - Program Themes: | fixed-wing aircraft | ||||||||
DLR - Research area: | Aeronautics | ||||||||
DLR - Program: | L AR - Aircraft Research | ||||||||
DLR - Research theme (Project): | L - Structures and Materials (old) | ||||||||
Location: | Augsburg | ||||||||
Institutes and Institutions: | Institute of Structures and Design > Automation and Production Technology | ||||||||
Deposited By: | Huber, Armin | ||||||||
Deposited On: | 18 Dec 2020 10:18 | ||||||||
Last Modified: | 24 Apr 2024 20:40 |
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