TY - CONF A1 - Bartholmai, Matthias A1 - Köppe, Enrico A1 - Prager, Jens A2 - Boller, C. T1 - Early damage detection of structural defects using guided waves T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 (Proceedings) N2 - Limited access to the object of relevance is often an essential problem in testing routines, e.g. for non-destructive testing of industry facilities or components of means of transportation. The presented project is about the development of a non-destructive testing method for application over great distances (up to 100 m). The method is based on directed excitation and measuring of Lamb waves (guided waves). It enables an effective differentiation of structural and defective indications as well as a classification of different defect types. The advantage of guided waves is the ability of propagation over great distances. This offers innovative possibilities for the investigation of large or difficult to access constructions. The testing method can be helpful in a broad variety of applications. It is useable for the characterization of plane or cylindrical, thin-walled surfaces of metal or fiber laminated materials. Particularly the investigation of aircraft wings and other aerospace components as well as the investigation of pipelines are addressed fields of application. CY - Berlin T2 - EWSHM'12 - 6th European workshop on structural health monitoring 2012 CY - Dresden, Germany DA - 03.07.2012 KW - Lamb-waves KW - Ultrasound KW - Non-destructive evaluation KW - Early-damage-detection KW - Structural health monitoring PY - 2012 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/26240 AN - OPUS4-26240 SN - 978-3-940283-41-2 VL - 2 SP - 1471 EP - 1478 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany