Print Email Facebook Twitter Fracture testing of existing structures without the need for repairs Title Fracture testing of existing structures without the need for repairs Author Walters, C.L. Bruchhausen, M. Lapetite, J.M. Duvalois, W. Publication year 2017 Abstract It is sometimes necessary to find the toughness of existing structures without damaging them. Examples of this scenario include situations in which the material is suspected of being brittle or service life extensions. However, fracture testing is inherently destructive. Removing material for Charpy or Crack Tip Opening Displacement (CTOD) specimens can result in expensive repairs. The Small Punch Test (SPT), which has been developed for monitoring programs in the nuclear industry, offers a test method that requires such small amounts of material that the test can be performed in a practically non-destructive way. A pilot project was conducted to determine if the SPT can be applied to steels of use in maritime and offshore applications. The results of the pilot project showed that the SPT can identify behavior related to the ductile to brittle transition for an example S355 steel. Therefore, the SPT can provide valuable information for predicting fracture properties relevant to structural-level behavior of steel, such as Charpy transition and estimates of CTOD values in the lower shelf and lower portion of the ductile to brittle transition curve. In the end of this paper, a theoretical framework for transferring results from SPT to CTOD or Charpy testing is outlined. Subject 2015 Fluid & Solid MechanicsSD - Structural DynamicsTS - Technical SciencesMaritime & OffshoreMarineEnergy To reference this document use: http://resolver.tudelft.nl/uuid:9dae2d00-3c9f-4dd8-8c27-3297116b6c42 TNO identifier 772441 Source Proceedings of the ASME 2017 36th International Conference on Ocean, Offshore and Arctic Engineering, OMAE2017, June 25-30, 2017, Trondheim, Norway, 1-11 Article number OMAE2017-61420 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.