TY - CONF A1 - Maierhofer, Christiane A1 - Röllig, Mathias A1 - Steinfurth, Henrik A1 - Augustin, Sven A1 - Mecke, R. A1 - Schiller, M. A1 - Kernchen, A. A1 - Kalisch, U. A1 - Meinhardt, J. A1 - Hennen, C. A1 - Groll, E. T. A1 - Arnold, T. T1 - Characterisation of historic façades using active thermography with solar heating and optical methods N2 - Active thermography is well suited for the detection of delaminations and cracks in façade elements like plaster and tiles. Not only artificial heating but also solar heating can be used if the adjustment of the façade and the weather conditions are suitable. Optical methods like laser scanners, photogrammetric methods and crack tracking sensors are providing geometrical 3D data which can be used for a 3D mapping of thermograms and for providing data with higher geometrical resolution. Thus, by the combination and fusion of these data, a comprehensive mapping and monitoring of damages of façade systems is possible. T2 - 19th World Conference on Non-destructive Testing (WCNDT) CY - München, Germany DA - 13.06.2016 KW - Non-destructive testing KW - Active thermography KW - Solar heating KW - Historic facades KW - Optical methods PY - 2016 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-366833 SN - 978-3-940283-78-8 VL - BB 158 SP - Mo.2.C.2., 1 EP - 8 PB - DGZfP CY - Berlin AN - OPUS4-36683 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER - TY - CONF A1 - Krankenhagen, Rainer A1 - Maierhofer, Christiane A1 - Heckel, Thomas A1 - Brackrock, Daniel A1 - Gower, M. A1 - Lodeiro, M. A1 - Baker, G. T1 - Quantitative comparison of different non-destructive techniques for the detection of artificial defects in GFRP N2 - In order to test their suitability different non-destructive methods were performed to inspect a GFRP plate with artificial defects. These defects were manufactured by means of thin PTFE sheets inserted between two plies in three different depth. The inspection methods were microwave reflection, flash thermography and phased array ultrasonics, all applied to the same specimen. Selected results are shown for all methods demonstrating opportunities and limits of the particular inspection methods. The achieved detection limits and further application aspects are compared directly to provide a useful information for the planning of inspection tasks. T2 - ECNDT CY - Gothenburg, Sweden DA - 11.06.2018 KW - Fiber resisted polymers KW - Non-destructive testing KW - Thermographic testing KW - Ultrasonic testing PY - 2018 UR - https://nbn-resolving.org/urn:nbn:de:kobv:b43-453728 SP - ECNDT-0247-2018 AN - OPUS4-45372 LA - eng AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany ER -