Skip to main content
SpringerLink
Log in

Experimental Study on Dynamic Fracture Toughness of Compact Tension Specimens

  • Published:
Experimental Techniques Aims and scope Submit manuscript

Abstract

In this paper, the dynamic fracture toughness test of 2A12T4 aluminum alloy compact tension (CT) specimens is carried out by tensile stress waves, based on a Hopkinson experimental device. The crack propagation of the CT specimen is recorded by a high-speed camera. The dynamic fracture toughness of CT specimens with two different crack forms was studied by using the digital image correlation method and the strain gauge method. The study analyzed the CT specimen dynamic fracture toughness of different crack types, different thicknesses and prefabricated lengths were discussed. Research results indicate that, under the same loading conditions, the dynamic fracture toughness of prefabricated fatigue crack specimens is less than of the wire cutting gap specimens. With an increase in the length of fabricated fatigue crack, the dynamic fracture toughness decreases. The dynamic fracture toughness of 15 mm thick CT specimens is greater than that of 20 mm thick specimens.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6
Fig. 7
Fig. 8
Fig. 9
Fig. 10
Fig. 11
Fig. 12
Fig. 13

Similar content being viewed by others

References

  1. Chen WW, Song B (2011) Split Hopkinson (Kolsky) Bar: design, testing and applications. In: Mechanical Engineering Series, 1st edn. Springer, New York

  2. Jiang F, Vecchio KS (2009) Hopkinson bar loaded fracture experimental technique: a critical review of dynamic fracture toughness tests [J]. Appl Mech Rev 62(6):060802

    Article  Google Scholar 

  3. Lu F Y, Chen R, Lin Y L, et al. (2013) Hopkinson Bar Techniques. Sci Press, ISBN:9787030384348

  4. Wang QJ, Guo WG, Zuo HX et al (2013) Fracture toughness of ultra-strength steel 18NiC250 at different loading rates. Explo Shock Waves 33(3):238–242

    Google Scholar 

  5. Zhang XX, Liu RT (2003) Effect of loading rate on fracture toughness of a ship-building steel. Explo Shock Waves 23(1):47–50

    Google Scholar 

  6. Loya JA, Fernández-Sáez J (2008) Three-dimensional effects on the dynamic fracture determination of Al 7075-T651 using TPB specimens. Int J Solids Struct 45(7):2203–2219

    Article  Google Scholar 

  7. Zou GP, Chang ZL, Qu J et al (2011) Experimental study of dynamic fracture toughness of specimen subjected to compact tension under plane strain. J Exp Mech 26(3):240–246

    Google Scholar 

  8. Costin LS, Duffy J, Freund LB (1977) Fracture initiation in metals under stress wave loading conditions. ASTM Spec Tech Publ 627:301–318

    Google Scholar 

  9. Bassim MN, Bayoumi MR, Shum D (1987) Study of the variation of fracture toughness with loading rate using compact tension specimens. Eng Fract Mech 26(4):619–623

    Article  Google Scholar 

  10. Owen DM, Zhuang S, Rosakis AJ et al (1998) Experimental determination of dynamic crack initiation and propagation fracture toughness in thin aluminum sheets. Int J Fract 90(1–2):153–174

    Article  Google Scholar 

  11. Zejian X, Yulong L (2012) A novel method in determination of dynamic fracture toughness under mixed mode I-II impact loading. Int J Solids Struct 49:366–376

    Article  Google Scholar 

  12. ASTM Standard E399–06.Standard Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIC of Metallic Materials. ASTM International (2007)

  13. Dally JW, Sanford RJ (1987) Strain-gage methods for measuring the opening-mode stress-intensity factor, KI. Exp Mech 27(4):381–388

    Article  Google Scholar 

  14. Dally JW, Barker DB (1988) Dynamic measurements of initiation toughness at high loading rates. Exp Mech 28(3):298–303

    Article  Google Scholar 

  15. ASTM-E1823-07a.Standard Terminology: Relating to Fatigue and Fracture Testing[S]. ASTM International (2007)

  16. Gao G, Yao W, Xia K et al (2015) Investigation of the rate dependence of fracture propagation in rocks using digital image correlation (DIC) method [J]. Eng Fract Mech 138:146–155

    Article  Google Scholar 

Download references

Funding

Supported by National Natural Science Foundation of China (No.11372081,No.11602068) & Fundamental Research Funds for the Central Universities (No.HEUCFM170203,HEUCFP201744,HEUCFP201762).

Author information

Authors and Affiliations

  1. College of Aerospace and Civil Engineering, Harbin Engineering University, Harbin, 150001, China

    G. Zou, C. Zhao, Z. Chang, Y. Fan, S. Liu & B. Zhang

  2. College of Science, Heilongjiang University of Science and Technology, Harbin, 150022, China

    W. Zhao

Authors
  1. G. Zou
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. C. Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Z. Chang
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. W. Zhao
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Y. Fan
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. S. Liu
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. B. Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

Corresponding author

Correspondence to Z. Chang.

Rights and permissions

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Zou, G., Zhao, C., Chang, Z. et al. Experimental Study on Dynamic Fracture Toughness of Compact Tension Specimens. Exp Tech 43, 57–64 (2019). https://doi.org/10.1007/s40799-018-0265-y

Download citation

  • Received:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s40799-018-0265-y

Keywords

Search

Navigation