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DLR Research Activities for Structural Health Monitoring in Aerospace Structures

Schmidt, Daniel and Hillger, Wolfgang and Szewieczek, Artur and Sinapius, Michael and Wierach, Peter (2010) DLR Research Activities for Structural Health Monitoring in Aerospace Structures. 2nd International Symposium on NDT in Aerospace 2010, 22.-24. Nov. 2010, Hamburg, Deutschland.

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Abstract

The paper describes the diverse research activities of the DLR in the topic of Structural Health Monitoring (SHM). SHM based on Lamb waves is a promising method for in-service inspection of aerospace structures without time consuming scanning like conventional ultrasonic techniques. Lamb waves propagate over large distances and can be easily excited and received by a network of piezoceramic actuators and sensors. Lamb waves are able to interact with structural damages due to their high sensitivity to discontinuities in materials. In principle different kinds of structural defects can be detected and located by analyzing the sensor signals. The activities at DLR are focussed on the visualisation of Lamb wave propagation fields based on air-coupled ultrasonic technique, the simulation of virtual sensors, mode selective actuators as well as manufacturing of actuator and sensor networks.

Document Type:Conference or Workshop Item (Paper)
Title:DLR Research Activities for Structural Health Monitoring in Aerospace Structures
Authors:
AuthorsInstitution or Email of Authors
Schmidt, DanielUNSPECIFIED
Hillger, WolfgangUNSPECIFIED
Szewieczek, ArturUNSPECIFIED
Sinapius, MichaelUNSPECIFIED
Wierach, PeterUNSPECIFIED
Date:November 2010
Keywords:Structural Health Monitoring (SHM), Lamb waves, Mode selective actuator, Virtual sensor, Com-posite structure
Event Title:2nd International Symposium on NDT in Aerospace 2010
Event Location:Hamburg, Deutschland
Event Type:international Conference
Event Dates:22.-24. Nov. 2010
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:Aircraft Research
DLR - Research area:Aeronautics
DLR - Program:L AR - Aircraft Research
DLR - Research theme (Project):L - Structures & Materials
Location: Braunschweig
Institutes and Institutions:Institute of Composite Structures and Adaptive Systems > Multifunctional Materials
Deposited By: Isolde Böhringer-Thelen
Deposited On:21 Mar 2012 12:11
Last Modified:21 Mar 2012 12:11

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