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A blunt notch extended compact tension (BN-ECT) specimen for the study of short and long crack propagation

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From the work presented here, it is clear that the BN-ECT specimen can be used to study the fatigue crack initiation and propagation in metallic specimens. The specimen is easy to fabricate and test; the specimen yields reliable data for short- and long-crack propagation.

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References

  1. Pearson, S., “Initiation of Fatigue Cracks in Commercial Aluminum Alloys and the Subsequent Propagation of Very Short Cracks,” Eng. Fract. Mech., 7, 235–247 (1975).

    Article  Google Scholar 

  2. El Haddad, M.H., Dowling, N.E., Topper, T.H., and Smith, K.N., “J-Integral Application for Short Fatigue Cracks at Notches,” Int. J. Fract., 16, 15–30 (1980).

    Article  Google Scholar 

  3. Miller, K.J. and de los Rios, E.R., eds., The Behavior of Short Fatigue Cracks, European Group on Fracture, Pub. No. 1 (1986).

  4. Newman, J.C., Jr. and Edwards, P.R., “Short-Crack Growth Behavior in an Aluminum Alloy—an AGARD Cooperative Test Programme,” AGARD Rep. 732, Paris, France (1988).

  5. Swain, M.H. and Newman, J.C., Jr., “On the Use of Marker Loads and Replicas for Measuring Growth Rates for Small Cracks,” AGARD CP-376, Paris, France, 12.1–12.17 (1984).

  6. Larsen, J.M., “Measurement of Small Cracks by Photomicroscopy Experiments and Analysis” ASTM STP 1149 (1992).

  7. Annigeri, B.S., Favrow, L.H., and Schneider, G.J., “ Small Cracks Test Program for MH-53J Helicopter Materials,” UTRC Rep. No. R95-470111-F (Jan. 1995).

  8. Provan, J.W., Bonsang, F., Rezai, K. and Powell, A., “A Combined Fatigue Crack Initiation and Propagation Specimen—Its Initial Development,” Theo. and Appl. Fract. Mech., 15, 115–129 (1991).

    Article  Google Scholar 

  9. Pan J.Z., Jenkins, P., de los Rios, E.R. and Miller, K.J., “Detecting Small Fatigue Cracks by Acoustic Microscopy,” Fatigue Fract. Eng. Mat. Struct., 16(12), 1329–1337 (1993).

    Article  Google Scholar 

  10. Pan, J.Z., “New Test Method and Facilities for Investigating Short Fatigue Crack Propagation,” EXPERIMENTAL TECHNIQUES, 19(2), 19–23 (1995).

    Article  Google Scholar 

  11. Newman, J.C., Jr., Swain, M.H, Phillips, E.P, Wu, X.R., Zhao, W. and Ding, C.F., “Small-Crack Growth Behavior in High-Strength Aluminum Alloys—A NASA/CAE Cooperative Program,” 18th Cong. of the International Council of the Aeronautical Sciences, 799–820 (1992).

  12. Peterson, R.E., Stress Concentration Factors, John Wiley and Sons, New York (1974).

    Google Scholar 

  13. Piascik, R.S. and Willard, S.A., “The Growth of Small Corrosion Fatigue Cracks in Alloy 2024,” Fatigue and Fract. of Eng. Mat. and Struct. 1247–1259 (1994).

  14. Newman, J.C., Jr., “Fracture Mechanics Parameters for Small Fatigue Cracks,” Small-Crack Test Methods, ASTM STP 1149, 6–33 (1992).

  15. Swain, M.H., “Monitoring Small Crack Growth by the Replica Method,” Small Crack Test Methods, ASTM STP 1149, ed. J. Larsen and J. Allison, ASTM, Philadelphia, 34–56 (1992).

    Chapter  Google Scholar 

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Prabhakaran, R., Piascik, R.S. A blunt notch extended compact tension (BN-ECT) specimen for the study of short and long crack propagation. Exp Tech 21, 24–26 (1997). https://doi.org/10.1111/j.1747-1567.1997.tb00504.x

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  • DOI: https://doi.org/10.1111/j.1747-1567.1997.tb00504.x

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