Print Email Facebook Twitter Plasticity detection and quantification in monopile support structures due to axial impact loading Title Plasticity detection and quantification in monopile support structures due to axial impact loading Author Meijers, P.C. (TU Delft Offshore Engineering) Tsouvalas, A. (TU Delft Offshore Engineering) Metrikine, A. (TU Delft Offshore Engineering; TU Delft Engineering Structures) Department Engineering Structures Date 2018-02-02 Abstract Recent developments in the construction of offshore wind turbines have created the need for a method to detect whether a monopile foundation is plastically deformed during the installation procedure. Since measurements at the pile head are difficult to perform, a method based on measurements at a certain distance below the pile head is proposed in this work for quantification of the amount of plasticity. By considering a onedimensional rod model with an elastic-perfectly plastic constitutive relation, it is shown that the occurrence of plastic deformation caused by an impact load can be detected from these measurements. Furthermore, this plastic deformation can be quantified by the same measurement with the help of an energy balance. The effectiveness of the proposed method is demonstrated via a numerical example. To reference this document use: http://resolver.tudelft.nl/uuid:9754d1d8-51d0-4595-aaf6-e13461dc0bb3 DOI https://doi.org/10.1051/matecconf/201814815003 ISSN 2261-236X Source MATEC Web of Conferences, 148 Part of collection Institutional Repository Document type journal article Rights © 2018 P.C. Meijers, A. Tsouvalas, A. Metrikine Files PDF matecconf_icoev2018_15003.pdf 345.54 KB Close viewer /islandora/object/uuid:9754d1d8-51d0-4595-aaf6-e13461dc0bb3/datastream/OBJ/view