Advertisement

Contribution of Kinematical and Thermal Full-field Measurements for Identification of High Cycle Fatigue Properties of Steels

  • R. Munier
  • C. Doudard
  • S. Calloch
  • B. Weber
Conference paper
Part of the Conference Proceedings of the Society for Experimental Mechanics Series book series (CPSEMS)

Abstract

Using kinematical and thermal full-field measurements for identification of mechanical parameters has become a very promising area of experimental mechanics. The purpose of this work is to extend the use of non-conventional tests and full field measurements (kinematical and thermal) to the identification of the fatigue properties of a dual-phase steel. A particular attention is paid to the influence of plastic pre-strain on the fatigue limit. Indeed, an analytical approach is proposed to define the geometry of the specimen permitting to obtain a constant gradient of plastic strain within the zone of interest after a monotonic pre-strain. Then, a self-heating test under cyclic loading is carried out on the pre-strained specimen. During this cyclic test, the thermal field is measured using an infrared camera. Finally, a suitable numerical strategy is proposed to identify a given thermal source model taking into account the influence of a plastic pre-strain. The results show that, with the non-conventional test and the procedure developed in this work, the influence of a range of plastic pre-strain on fatigue properties can be identified by using only one specimen. It is worth noting that a great number of specimens is required to determine this effect by using classical fatigue campaign.

Keywords

Digital Image Correlation Fatigue Limit Fatigue Property Steel DP600 Monotonic Tensile Test 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    A. Chrysochoos, H. Louche, Infrared image processing to analyse the calorific effects accompanying strain localization, Int J Eng Sci 38 16, 1759–1788, 2000.Google Scholar
  2. 2.
    J. Medgenberg and T. Ummenhofer, Detection of localized fatigue damage in steel by thermography, In Knettel, K. M., Vavilov, V. P., et Miles, J. J., editors, Proceedings of Thermosense XXIX, volume 6541, 17.117.11, 2007.Google Scholar
  3. 3.
    M. Poncelet, C. Doudard, S. Calloch, F. Hild, B. Weber, Dissipation measurements in steel sheets under cyclic loading by use of infrared microthermography, Strain 46, 101–116, 2010.CrossRefGoogle Scholar
  4. 4.
    M. Bornert, F. Brémand, P. Doumalin, J.-C. Dupré and M. Fazzini, et al., Assessment of Digital Image Correlation Measurement Errors: Methodology and Results, Experimental Mechanics 49 3, 353–370, 2009.Google Scholar
  5. 5.
    S. Roux, F. Hild, Digital Image Mechanical Identification (DIMI), Experimental Mechanics 48 4, 495–508, 2008.Google Scholar
  6. 6.
    A. Gustavsson and A. Melander, Variable-amplitude fatigue of a dual-phase sheet steel subjected to prestrain, Int. J. Fat. 16, 503–509, 1995.CrossRefGoogle Scholar
  7. 7.
    K. Nakajima, S. Kamiishi, M. Yokoe, et T. Miyata. The influence of microstructural morphology and prestrain on fatigue crack propagation of dual-phase steels in the near-threshold region, ISIJ International 39(5), 486–492, 1999.Google Scholar
  8. 8.
    R. Munier, C. Doudard, S. Calloch, B. Weber, Towards a faster determination of high cycle fatigue properties taking into account the influence of a plastic pre-strain from self-heating measurements, Procedia Engineering 2 1, 1741–1750, 2010.Google Scholar
  9. 9.
    C. Doudard, Détermination rapide des propriétés en fatigue à grand nombre de cycles à partir d'essais d'auto-échauffement, PhD ENS Cachan, 2004.Google Scholar
  10. 10.
    C. E. Stromeyer, The determination of fatigue limits under alternating stress conditions, Proc. Roy. Soc. London, A90, 411–425, 1914.Google Scholar
  11. 11.
    HF. Moore, JB. Kommers, Fatigue of metals under repeated stress, Chem Metall Eng 25, 1141–1144, 1921.Google Scholar
  12. 12.
    M.P. Luong (1998), Fatigue limit evaluation of metals using an infrared thermographic technique. Mech Mater 28(1–4), 155–163CrossRefGoogle Scholar
  13. 13.
    G. La Rosa and A. Risitano, Thermographic Methodology for Rapid Determination of the Fatigue Limit of Materials and Mechanical Components, Int. J. Fat. 22 [1], 65–73, 2000.Google Scholar
  14. 14.
    P.K. Liaw, H. Wang, L. Jiang, B. Yang, J. Y. Huang, R. C. Kuo and J. C. Huang, Thermographic detection of fatigue damage of pressure vessel at 1 Hz and 20 Hz, Scripta Materialia 42 [4], 389–395, 2000.Google Scholar
  15. 15.
    C. Doudard, S. Calloch, F. Hild, P. Cugy and A. Galtier, Identification of the scatter in high cycle fatigue from temperature measurements, C.R. Mcanique 332 [10], 795–801, 2004.Google Scholar
  16. 16.
    C. Doudard, S. Calloch, P. Cugy, A. Galtier and F. Hild, A probabilistic two-scale model for high-cycle fatigue life predictions, Fat. Fract. Eng. Mat. Struct. 28, 279–288, 2005.CrossRefGoogle Scholar
  17. 17.
    L. Chevalier, S. Calloch, F. Hild, Y. Marco, Digital image correlation used to analyse the multiaxial behavior of rubberlike materials, Eur J Mech A Solid 20 2, 168–187, 2001.Google Scholar
  18. 18.
    C. Doudard, S. Calloch, F. Hild and S. Roux, Identification of heat source fields from infra-red thermography: Determination of 'self-heating' in a dual-phase steel by using a dog bone sample, Mechanics of Materials 42 1, 55–62, 2010.Google Scholar
  19. 19.
    N. Connesson, F. Maquin, F. Pierron, Experimental energy balance during the first cycles of cyclically loaded specimens under the conventional yield stress, Experimental Mechanics online first, 2010.Google Scholar

Copyright information

© Springer Science+Businees Media, LLC 2011

Authors and Affiliations

  • R. Munier
    • 1
    • 2
  • C. Doudard
    • 1
  • S. Calloch
    • 1
  • B. Weber
    • 2
  1. 1.LBMS EA4325, ENSTA Bretagne / UBO / ENIBBrest Cedex 9France
  2. 2.ArcelorMittal Maizières Research & DevelopmentMaizières-les-Metz CedexFrance

Personalised recommendations