Print Email Facebook Twitter Modelling the influence of cracking and healing on modal properties of concrete beams Title Modelling the influence of cracking and healing on modal properties of concrete beams Author Savija, B. Schlangen, E. Faculty Civil Engineering and Geosciences Department Structural Engineering Date 2015-06-22 Abstract Concrete structures are commonly cracked when in service. To overcome issues arising from cracking, self-healing concrete is being developed. Together with the development of the material, techniques to verify and quantify self-healing are being developed. A number of destructive techniques have been used in the past. It would be beneficial to use non-destructive testing for continuous monitoring of self-healing. It is well known that cracking causes changes in natural frequencies of structural elements. A change in natural frequencies can be, therefore, used as an indication of damage. Consequently, the recovery of natural frequencies can be used as an indication of healing. In this work, a model which enables calculation of mode shapes and natural frequencies is presented. First, it is shown that the proposed 2D model can reasonably mimic modal behavior of thin structures under different boundary conditions [6]. It is then used to assess the influence of cracking and healing on the change of modal properties of concrete beams. Finally, based on the modelling results, conclusions are drawn. Subject concretemodellingmodal analysislattice modelself-healing To reference this document use: http://resolver.tudelft.nl/uuid:e6664554-4169-4c24-91b9-6f3d911fa9bf Source ICSHM 2015: Proceedings of the 5th International Conference on Self-Healing Materials, Durham, USA, 22-24 June 2015 Part of collection Institutional Repository Document type conference paper Rights (c) 2015 The Author(s) Files PDF 317984.pdf 364.68 KB Close viewer /islandora/object/uuid:e6664554-4169-4c24-91b9-6f3d911fa9bf/datastream/OBJ/view