Mid-thickness studies of the stress intensity factor in the bulk of bainitic steel
作者: P. Lopez-CrespoJ. Vazquez-PeraltaC. SimpsonT. BuslapsP J. Withers
作者单位: 1Department of Civil and Materials Engineering, University of Malaga, C/Dr Ortiz Ramos s/n, 29071 Malaga, Spain
2School of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK
3European Synchrotron Radiation Facility (ESRF), 6 rue J Horowitz, 38000 Grenoble, France
4School of Materials, University of Manchester, Oxford Road, Manchester M13 9PL, UK Research Complex at Harwell, Didcot, Oxfordshire, OX11 0FA, UK.
刊名: Fracture and Structural Integrity, 2017, Vol.11 (41), pp.203 - 210
来源数据库: Gruppo Italiano Frattura
DOI: 10.3221/IGF-ESIS.41.28
关键词: Stress intensity factorBainitic steelWilliams� expansionX-ray diffraction
原始语种摘要: The current work aims at estimating the stress intensity factor deep inside the bulk from elastic strain data measured by synchrotron X-ray diffraction. Key features affecting the evaluation of the stress intensity factor are the number of terms in the analytical model describing the crack tip field, the extension and position of the area of interest of the experimental data, the effect of the experimental data collected within the plastic zone and the number of elastic strain data points used. Here a parametric study of these features is presented in terms of their influence for the stress intensity factor determination. It was found that 3 or 4 terms in Williams� expansion is often sufficient; the data should be collected from across the full range of angles around the crack tip; and...
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  • factor 因素
  • intensity 强度
  • terms 术语
  • number 号码
  • stress 应力
  • estimating 价值估计
  • often 往往
  • interest 兴趣
  • synchrotron 同步加速器
  • determination 测定