TY - CONF A1 - Marin, L. A1 - Döhler, Michael A1 - Bernal, D. A1 - Mevel, L. A2 - Chang, F.-K. T1 - Statistical based decision making for damage localization with influence lines T2 - IWSHM 2013 - 9th International workshop on structural health monitoring (Proceedings) N2 - A theorem on damage localization from flexibility changes has been proven recently, where it has been shown that the image of the change in flexibility δF between damaged and reference states of a structure is a basis for the influence lines of stress resultants at the damaged locations. This damage localization approach can operate on output-only vibration measurements from damaged and reference states, and a finite element model of the structure in reference state is required. While the localization approach is based on purely mechanical principles, an estimate of the image of δF is required from the data that is subject to statistical uncertainty due to unknown noise excitation and finite data length. In this paper, this uncertainty is quantified from the measurements and a statistical framework is added for the decision about damaged elements. The combined approach is successfully applied to a numerical simulation and to a cantilever beam in a lab experiment. T2 - IWSHM 2013 - 9th International workshop on structural health monitoring CY - Stanford, CA, USA DA - 2013-09-10 PY - 2013 UR - https://opus4.kobv.de/opus4-bam/frontdoor/index/index/docId/30476 AN - OPUS4-30476 SN - 978-1-60595-115-7 VL - 1 SP - 159 EP - 166 AD - Bundesanstalt fuer Materialforschung und -pruefung (BAM), Berlin, Germany