READ ME File For 'Dataset for Fatigue crack initiation and growth behaviour within varying notch geometries in the low-cycle fatigue regime for FV566 turbine blade material.' Dataset DOI: https://doi.org/10.5258/SOTON/D2593 ReadMe Author: Benjamin Cunningham (B.M.D.Cunningham@soton.ac.uk), University of Southampton orcid.org/0000-0002-2604-4242 This dataset supports the publication: Fatigue crack initiation and growth behaviour within varying notch geometries in the low-cycle fatigue regime for FV566 turbine blade material. AUTHORS:B.M.D. Cunningham 1, M. Leering 2, Y.H. Fan 3, C. You 3, A. Morris 4, P.A.S. Reed 1, A.R. Hamilton 1, Michael E. Fitzpatrick 2 1 Department of Mechanical Engineering, University of Southampton, UK, SO17 1BJ 2 Faculty of Engineering, Environment, and Computing, Coventry University, Coventry, UK 3 College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, China 4 EDF, Coal & Gas Operations, Central Technical Organisation, Barnwood, Gloucester, UK TITLE: Fatigue crack initiation and growth behaviour within varying notch geometries in the low-cycle fatigue regime for FV566 turbine blade material JOURNAL: Fatigue & Fracture of Engineering Materials & Structures PAPER DOI IF KNOWN: https://doi.org/10.1111/ffe.14036 This dataset contains: The Excel spreadsheet file containing the results that were used to create the graphs in the paper. The .mp4 file M08_4_Crack_evolution - Short crack growth evolution on the shot peened notch The .mp4 file M08_5_Crack_evolution - Short crack growth evolution on the polished notch with a higher strain range The .mp4 file M09_8_Crack_evolution - Short crack growth evolution on the polished notch with sharper and deeper notch geometry The figures are as follows: Fig. 2B The notch depth versus the notch radius of each notch measured using microscopy. Fig. 3A The elastic-plastic monotonic tensile data obtained by Frazer-Nash Consultancy also used in Cunningham BMD, Evangelou A, You C, et al. Fatigue crack initiation and growth behavior in a notch with periodic overloads in the low-cycle fatigue regime of FV566 ex-service steam turbine blade material. FFEMS. 2022;45(2):546-564. Fig. 3B The notch depth versus the notch radius of each notch created using ABAQUS software Fig. 4 The Normalised depth (calculated using Equation 1) versus the longitudnal stress in the xx (tensile axis) direction extracted using ABAQUS modelling and extracting element node values from a path. Multiple graphs were used to compare notch geometries with various strain ranges applied to the centre of the notch. Fig. 5A The normalised depth (calculated using Equation 1) versus the longitudnal stress in the xx (tensile axis) direction extracted using ABAQUS modelling and extracting element node values from a path. The values represent the results after unloading from a maximum load value (residual stress values). Fig. 6A The residual stress from a more developed ABAQUS model (developed by Chao You and Yuhui Fan) simulating the effect of shot peenning and comparing with experimental data for validation purposes. Fig. 7 The residual stress from the ABAQUS model (developed by Chao You and Yuhui Fan) simulating the effect of applying one loading cycle to shot peened samples with different strain ranges applied. Fig. 8 The number of initiation events observed on the surface for U-notch samples and compared with other observations from other papers Fig. 9 The short crack dc/dn crack growth rate versus the Delta k surface for a polished samples and with different notch geometry and with a shot peened sample for comparison. Fig. 10 The evolution of initiation and coalescence events with lifetime for several U-notch sample types. E F and G show a slide image from the .mp4 files. Fig. 11A The a/c ratios for samples which were broken part way through testing and the a vaue and c value measured from teh fatigue region. For complex shapes the area was used to estimate the crack depth a. Fig. 11B-C The strain range applied at the notch surafce (found using FEA) versus the lifetime of the U-notch samples for U-notch samples with various geometries and for polished and shot peened smaples. Fig. 12 The normalised depth (calculated using Equation 1) versus the longitudinal stress in the xx direction found using a 2D planar and 3D quarter ABAQUS model for comparitive purposes. Fig. 13 The residual stress values found using XRD methods by M. Leergin and Michael Fitzpatrick at Coventry University and compared with similar samples from previous work by Soady Geographic location of data collection: University of Southampton, U.K. Date of data collection: 2020-02-01 to 2023-03-31 Licence: CC BY 4.0 Publisher: University of Southampton, U.K. Date that the file was created: April 2023