Print Email Facebook Twitter Minimum fatigue pre-crack extension for fracture testing Title Minimum fatigue pre-crack extension for fracture testing Author Walters, C.L. Voormeeren, L.O. Publication year 2013 Abstract The minimum pre-crack necessary to achieve an accurate measurement of the J-integral is examined with the use of elastic-plastic finite element analysis. This minimum pre-crack is shorter than what is specified in fracture codes ASTM E1820 and BS 7448. A variety of steel properties are considered, but the focus is on S690 grade steel. Testing a SENB specimen from S690 steel with a notch width of 0.5 mm and a minimum pre-crack length of 0.5 mm can result in the same J integral as the same specimen with a much longer pre-crack. Finally, it is shown that a surface pre-crack length of 0.5 is practically achievable. Subject Building Engineering & Civil EngineeringSD - Structural DynamicsTS - Technical SciencesHigh Tech Maritime and Offshore SystemsMaterialsIndustrial Innovation To reference this document use: http://resolver.tudelft.nl/uuid:a09132e7-dd2d-451e-9e28-b793dddcfc39 TNO identifier 477123 Source Proceedings of the ASME 2013 Pressure Vessels & Piping Division Conference PVP2013, June 14-18, 2013, Paris, France, 1-8 Document type conference paper Files To receive the publication files, please send an e-mail request to TNO Library.