Acta Mechanica

, Volume 230, Issue 1, pp 319–331 | Cite as

High ductile fracture of a low-yield-strength steel with a part-through curve crack

  • Peishi Yu
  • Jiawang Sun
  • Chaofeng Zhang
  • Junhua ZhaoEmail author
Original Paper


Low-yield-strength (LYS) steels possess ultra-high ductility and low yield ratio which indicates a wide prospect of the application for energy absorption. When a LYS steel-based damper or buffer is activated by a seismic wave or a crash impact, the structural integrity usually has a high risk of failure. Hence, the fracture resistance of LYS steels should be a key parameter for their structural design and integrity assessment. Here, we report both an experimental and a numerical investigation on the fracture behavior of an LYS steel with the yield stress of 100 MPa (LYS100), where a part-through corner or surface crack is machined in specimens and the critical loading capacities of the specimens are determined by our experiments. The suitable material parameters of the extended finite element method for LYS100 are determined based on our experimental results, which can be used to describe the fracture behavior of LYS100. Our results show that the fracture toughness of LYS100 can be up to around 1019 N/mm, which is almost twice as high as that of Q235 and one order bigger than that of gray cast iron. These findings will be a great help toward understanding the fracture properties of LYS steels and designing high-performance damping structures.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.



The authors gratefully acknowledge the financial support by the National Natural Science Foundation of China (Grant Nos. 11302067, 11572140 and 11302084), the Natural Science Foundation of Jiangsu Province (Grant No. BK20180031), the 111 Project (Grant No. B18027), the Fundamental Research Funds for the Central Universities (Grant No. JUSRP115A09), the Programs of Innovation and Entrepreneurship of Jiangsu Province, Primary Research & Development Plan of Jiangsu Province (Grant No. BE2017069), Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology (Grant No. FMZ201806), Science and Technology Plan Project of Wuxi, Postgraduate Research & Practice Innovation Program of Jiangsu Province (Grant No. KYCX17_1473), the Undergraduate Innovation Training Program of Jiangnan University of China (Grant No. 2015151Y), the Undergraduate Innovation and Entrepreneurship Training Program of China (201610295057), the Research Fund of State Key Laboratory of Mechanics and Control of Mechanical Structures (NUAA) (Grant No. MCMS-0416G01), Project of Jiangsu provincial Six Talent Peaks in Jiangsu Province and Thousand Youth Talents Plan.


  1. 1.
    Zhang, C., Zhang, Z., Shi, J.: Development of high deformation capacity low yield strength steel shear panel damper. J. Constr. Steel Res. 75, 116–30 (2012)CrossRefGoogle Scholar
  2. 2.
    Nakashima, M.: Strain-hardening behavior of shear panels made of low-yield steel. I: test. J. Struct. Eng. 121, 1742–9 (1995)CrossRefGoogle Scholar
  3. 3.
    Zhang, C., Zhang, Z., Zhang, Q.: Static and dynamic cyclic performance of a low-yield-strength steel shear panel damper. J. Constr. Steel Res. 79, 195–203 (2012)CrossRefGoogle Scholar
  4. 4.
    Kelly, J.M., Skinner, R., Heine, A.: Mechanisms of energy absorption in special devices for use in earthquake resistant structures. Bull. N. Z. Soc. Earthq. Eng. 5, 63–88 (1972)Google Scholar
  5. 5.
    Black, C.J., Makris, N., Aiken, I.D.: Component testing, seismic evaluation and characterization of buckling-restrained braces. J. Struct. Eng. 130, 880–94 (2004)CrossRefGoogle Scholar
  6. 6.
    Nakashima, M., Iwai, S., Iwata, M., Takeuchi, T., Konomi, S., Akazawa, T.: Energy dissipation behaviour of shear panels made of low yield steel. Earthq. Eng. Struct. Dyn. 23, 1299–313 (1994)CrossRefGoogle Scholar
  7. 7.
    Zhang, C., Zhu, J., Wu, M., Yu, J., Zhao, J.: The lightweight design of a seismic low-yield-strength steel shear panel damper. Materials 9, 424 (2016)CrossRefGoogle Scholar
  8. 8.
    Nakashima, M., Akazawa, T., Tsuji, B.: Strain-hardening behavior of shear panels made of low-yield steel. II: model. J. Struct. Eng. 121, 1750–7 (1995)CrossRefGoogle Scholar
  9. 9.
    Tanaka, K., Sasaki, Y.: Hysteretic performance of shear panel dampers of ultra low-yield-strength steel for seismic response control of buildings. In: 12th World Conference on Earthquake Engineering, WCEE New Zealand (2000)Google Scholar
  10. 10.
    Susantha, K.A.S., Aoki, T., Kumano, T., Yamamoto, K.: Applicability of low-yield-strength steel for ductility improvement of steel bridge piers. Eng. Struct. 27, 1064–73 (2005)CrossRefGoogle Scholar
  11. 11.
    Chen, S.-J., Jhang, C.: Cyclic behavior of low yield point steel shear walls. Thin-Walled Struct. 44, 730–8 (2006)CrossRefGoogle Scholar
  12. 12.
    Koike, Y., Yanaka, T., Usami, T., Ge, H., Oshita, S., Sagou, D.: An experimental study on developing high-performance stiffened shear panel dampers. J. Struct. Eng. JSCE 54, 372–81 (2008)Google Scholar
  13. 13.
    Zhang, C., Aoki, T., Zhang, Q., Wu, M.: Experimental investigation on the low-yield-strength steel shear panel damper under different loading. J. Constr. Steel Res. 84, 105–13 (2013)CrossRefGoogle Scholar
  14. 14.
    Zhang, C., Aoki, T., Zhang, Q., Wu, M.: The performance of low-yield-strength steel shear-panel damper with without buckling. Mater. Struct. 48, 1233–42 (2015)CrossRefGoogle Scholar
  15. 15.
    Saeki, E., Sugisawa, M., Yamaguchi, T., Wada, A.: Mechanical properties of low yield point steels. J. Mater. Civ. Eng. 10, 143–52 (1998)CrossRefGoogle Scholar
  16. 16.
    Zhang, C., Wang, L., Wu, M., Zhao, J.: Plastic behavior of metallic damping materials under cyclical shear loading. Materials 9, 496 (2016)CrossRefGoogle Scholar
  17. 17.
    Bridgman, P.W.: Studies in Large Plastic Flow and Fracture. McGraw-Hill, New York (1952)zbMATHGoogle Scholar
  18. 18.
    Ling, Y.: Uniaxial true stress–strain after necking. AMP J. Technol. 5, 37–48 (1996)Google Scholar
  19. 19.
    Jia, L.-J., Kuwamura, H.: Ductile fracture simulation of structural steels under monotonic tension. J. Struct. Eng. 140, 04013115 (2013)CrossRefGoogle Scholar
  20. 20.
    Hibbitt, Karlsson and Sorensen: ABAQUS/Standard User’s Manual. Hibbitt, Karlsson & Sorensen, Inc., Pawtucket (2001)Google Scholar
  21. 21.
    Raju, I., Newman, J.: Stress-intensity factors for a wide range of semi-elliptical surface cracks in finite-thickness plates. Eng. Fract. Mech. 11, 817–29 (1979)CrossRefGoogle Scholar
  22. 22.
    Ke, J., Liu, H.: Thickness effect on crack tip deformation at fracture. Eng. Fract. Mech. 8, 425–6 (1976)CrossRefGoogle Scholar
  23. 23.
    Malik, S., Fu, L.: Elasto-plastic analysis for a finite thickness rectangular plate containing a through-thickness central crack. Int. J. Fract. 18, 45–63 (1982)CrossRefGoogle Scholar
  24. 24.
    Dong, H.: Experimental Studies on the Three-Dimensional Mixed Mode Fracture. Xi’an Jiaotong University, Xi’an (2005)Google Scholar
  25. 25.
    She, C.: Studies on the Three-Dimensional Fracture of Aircraft Structures. Nanjing University of Aeronautics and Astronautics, Nanjing (2005)Google Scholar
  26. 26.
    Guo, W.L.: Elastoplastic three dimensional crack border field—I. Singular structure of the field. Eng. Fract. Mech. 46, 93–104 (1993)CrossRefGoogle Scholar
  27. 27.
    Newman, J.C., Bigelow, C., Shivakumar, K.: Three-dimensional elastic-plastic finite-element analyses of constraint variations in cracked bodies. Eng. Fract. Mech. 46, 1–13 (1993)CrossRefGoogle Scholar
  28. 28.
    Guo, W.L.: Elasto-plastic three-dimensional crack border field—III. Fracture parameters. Eng. Fract. Mech. 51, 51–71 (1995)CrossRefGoogle Scholar
  29. 29.
    Yu, P.S., She, C.M., Guo, W.L.: Equivalent thickness conception for corner cracks. Int. J. Solids Struct. 47, 2123–30 (2010)CrossRefGoogle Scholar
  30. 30.
    Yu, P.S., Guo, W.L.: An equivalent thickness conception for prediction of surface fatigue crack growth life and shape evolution. Eng. Fract. Mech. 93, 65–74 (2012)CrossRefGoogle Scholar
  31. 31.
    Yu, P.S., Guo, W.L.: An equivalent thickness conception for evaluation of corner and surface fatigue crack closure. Eng. Fract. Mech. 99, 202–13 (2013)CrossRefGoogle Scholar
  32. 32.
    She, C., Guo, W.: The out-of-plane constraint of mixed-mode cracks in thin elastic plates. Int. J. Solids Struct. 44, 3021–34 (2007)CrossRefGoogle Scholar
  33. 33.
    Zhang, B., Guo, W.: Three-dimensional stress state around quarter-elliptical corner cracks in elastic plates subjected to uniform tension loading. Eng. Fract. Mech. 74, 386–98 (2007)CrossRefGoogle Scholar
  34. 34.
    Zhao, J., Guo, W., She, C.: The in-plane and out-of-plane stress constraint factors and K-T-Tz description of stress field near the border of a semi-elliptical surface crack. Int. J. Fatigue 29, 435–43 (2007)CrossRefGoogle Scholar
  35. 35.
    Pitt, S., Jones, R.: Compliance measurements for assessing structural integrity. Eng. Fail. Anal. 8, 371–97 (2001)CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Austria, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, School of Mechanical EngineeringJiangnan UniversityWuxiChina

Personalised recommendations