Steel and Composite Structures

  • 제20권4호
  • /
  • Pages.913-930
  • /
  • 2016
  • /
  • 1229-9367(pISSN)
  • /
  • 1598-6233(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Evaluation of cyclic fracture in perforated beams using micromechanical fatigue model

  • Erfani, Saeed (Civil Engineering Department, Amirkabir University of Technology) ;
  • Akrami, Vahid (Civil Engineering Department, Amirkabir University of Technology)
  • 투고 : 2015.09.02
  • 심사 : 2015.12.29
  • 발행 : 2016.03.20
⟨ 이전 논문 다음 논문 ⟩

초록

It is common practice to use Reduced Web Beam Sections (RWBS) in steel moment resisting frames. Perforation of beam web in these members may cause stress and strain concentration around the opening area and facilitate ductile fracture under cyclic loading. This paper presents a numerical study on the cyclic fracture of these structural components. The considered connections are configured as T-shaped assemblies with beams of elongated circular perforations. The failure of specimens under Ultra Low Cycle Fatigue (ULCF) condition is simulated using Cyclic Void Growth Model (CVGM) which is a micromechanics based fracture model. In each model, CVGM fracture index is calculated based on the stress and strain time histories and then models with different opening configurations are compared based on the calculated fracture index. In addition to the global models, sub-models with refined mesh are used to evaluate fracture index around the beam to column weldment. Modeling techniques are validated using data from previous experiments. Results show that as the perforation size increases, opening corners experience greater fracture index. This is while as the opening size increases the maximum observed fracture index at the connection welds decreases. However, the initiation of fracture at connection welds occurs at lower drift angles compared to opening corners. Finally, a probabilistic framework is applied to CVGM in order to account for the uncertainties existing in the prediction of ductile fracture and results are discussed.

키워드

참고문헌

  1. Akrami, V. and Erfani, S. (2015a), "Effect of local web buckling on the cyclic behavior of reduced web beam sections (RWBS)", Steel Compos. Struct., Int. J., 18(3), 641-657. https://doi.org/10.12989/scs.2015.18.3.641
  2. Akrami, V. and Erfani, S. (2015b), "Review and assessment of design methodologies for perforated steel beams", J. Struct. Eng., 04015148. DOI: 10.1061/(ASCE)ST.1943-541X.0001421
  3. ANSI/AISC341 (2010), Seismic provisions for structural steel building; American Institute of Steel Construction (AISC), Chicago, IL, USA.
  4. ANSI/AISC358 (2010), Prequalified connections for special and intermediate steel moment frames for seismic applications; American Institute of Steel Construction (AISC), Chicago, IL, USA.
  5. Azuma, K., Kurobane, Y., Iwashita, T. and Dale, K. (2006), "Full-scale testing of beam-to-RHS column connections with partial joint penetration groove welded joints and assessment of safety from brittle fracture", Weld. World, 50(5-6), 59-67. https://doi.org/10.1007/BF03266525
  6. Chung, K. (2012), "Recent advances in design of steel and composite beams with web openings", Adv. Struct. Eng., 15(9), 1521-1536. https://doi.org/10.1260/1369-4332.15.9.1521
  7. Darwin, D. (1990), Steel and Composite Beams with Web Openings, Steel Design Guide Series 2, American Institute of Steel Construction (AISC), Chicago, IL, USA.
  8. Fell, B.V. (2008), "Large-scale testing and simulation of earthquake induced ultra low cycle fatigue in bracing members subjected to cyclic inelastic buckling", Ph.D. Dissertation; Civil and Environmental Engineering department, University of California, Davis, CA, USA.
  9. Hancock, J.W. and Mackenzie, A.C. (1976), "On the mechanisms of ductile failure in high-strength steels subjected to multi-axial stress-states", J. Mech. Phy. Solids, 24(2-3), 147-160. https://doi.org/10.1016/0022-5096(76)90024-7
  10. Hedayat, A.A. and Celikag, M. (2009), "Post-northridge connection with modified beam end configuration to enhance strength and ductility", J. Construct. Steel Res., 65(7), 1413-1430. https://doi.org/10.1016/j.jcsr.2009.03.007
  11. Huang, J., Nemat-Nasser, S. and Zarka, J. (2004), "Prediction of fatigue life of metallic structures with welded joints using automatic learning systems", Int. J. Mech. Mater. Des., 1(3), 255-270. https://doi.org/10.1007/s10999-005-0166-y
  12. Kanvinde, A.M. and Deierlein, G.G. (2004), "Micromechanical simulation of earthquake-induced fracture in steel structures", (John A. Blume), Earthquake Engineering Center Technical Report 145; Stanford Digital Repository.
  13. Kanvinde, A.M. and Deierlein, G.G. (2007), "Cyclic void growth model to assess ductile fracture initiation in structural steels due to ultra low cycle fatigue", J. Eng. Mech., 133(6), 701-712. https://doi.org/10.1061/(ASCE)0733-9399(2007)133:6(701)
  14. Kumar, S., Singh, I.V. and Mishra, B.K. (2014), "XFEM simulation of stable crack growth using J-R curve under finite strain plasticity", Int. J. Mech. Mater. Des., 10(2), 165-177. https://doi.org/10.1007/s10999-014-9238-1
  15. Kurobane, Y., Azuma, K. and Makino, Y. (2004), "Applicability of PJP groove welding to beam-column connections under seismic loads", Connections in Steel Structures V, Amsterdam, The Netherlands,June.
  16. Lawson, R.M., Basta, A. and Uzzaman, A. (2015), "Design of stainless steel sections with circular openings in shear", J. Construct. Steel Res., 112, 228-241. https://doi.org/10.1016/j.jcsr.2015.04.017
  17. Lee, E.T., Chang, K.H., Shim, H.J. and Kim, J.H. (2004), "Local buckling behavior of steel members with web opening under cyclic loading", Proceedings of the 7th Pacific Structural Steel Conference, Chicago, IL, USA, March. Sponsored by: American Society of Civil Engineers (AISC)
  18. Liao, F.F. and Wang, W. (2010), "Parameter calibrations of micromechanics-based fracture models of Q345 steel", Sciencepaper. URL: http://www.paper.edu.cn/index.php/default/releasepaper/content/201007-457 [In Chinese]
  19. Lignos, D. and Krawinkler, H. (2011), "Deterioration modeling of steel components in support of collapse prediction of steel moment frames under earthquake loading", J. Struct. Eng., 137(11), 1291-1302. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000376
  20. Liu, T.C.H. and Chung, K.F. (2003), "Steel beams with large web openings of various shapes and sizes: Finite element investigation", J. Construct. Steel Res., 59(9), 1159-1176. https://doi.org/10.1016/S0143-974X(03)00030-0
  21. Myers, A.T., Deierlein, G.G. and Kanvinde, A.M. (2009), "Testing and probablilistic simulation of ductile fracture initiation in structural steel components and weldments", (John A. Blume), Earthquake Engineering Center Technical Report 170; Stanford Digital Repository.
  22. Prinz, G.S. and Richards, P.W. (2009), "Eccentrically braced frame links with reduced web sections", J. Construct. Steel Res. (JCSR), 65(10-11), 1971-1978. https://doi.org/10.1016/j.jcsr.2009.04.017
  23. Rice, J.R. and Tracey, D.M. (1969), "On the ductile enlargement of voids in triaxial stress fields", J. Mech. Phys. Solids, 17(3), 201-217. https://doi.org/10.1016/0022-5096(69)90033-7
  24. Shinde, H., Kurobane, Y., Azuma, K. and Dale, K. (2003), "Additional full-scale testing of beam-to-column connections with improvements in welded joints", Proceedings of the 13th International Offshore and Polar Engineering Conference, Honolulu, HI, USA, May.
  25. Singh, I.V., Mishra, B.K. and Bhattacharya, S. (2011), "XFEM simulation of cracks, holes and inclusions in functionally graded materials", Int. J. Mech. Mater. Des., 7(3), 199-218. https://doi.org/10.1007/s10999-011-9159-1
  26. Smith, C.M., Deierlein, G.G. and Kanvinde, A.M. (2014), "A stress-weighted damage model for ductile fracture initiation in structural steel undercyclic loading and generalized stress states", (John A. Blume), Earthquake Engineering Technical Report 187; Stanford Digital Repository.
  27. Tehranizadeh, M., Deylami, A., Gholami, M. and Moaze, H. (2012), "Validation of cyclic void growth model for fracture initiation in the flange plate connection between beam and box column", Proceedings of the 15th World Conference on Earthquake Engineering (15 WCEE), Lisbon, Portugal, September.
  28. Tsavdaridis, K.D. and D'Mello, C. (2011), "Web buckling study of the behaviour and strength of perforated steel beams with different novel web opening shapes", J. Construct. Steel Res., 67(10), 1605-1620. https://doi.org/10.1016/j.jcsr.2011.04.004
  29. Tsavdaridis, K.D. and D'Mello, C. (2012a), "Optimisation of novel elliptically-based web opening shapes of perforated steel beams", J. Construct. Steel Res., 76, 39-53. https://doi.org/10.1016/j.jcsr.2012.03.026
  30. Tsavdaridis, K.D. and D'Mello, C. (2012b), "Vierendeel bending study of perforated steel beams with various novel web opening shapes through nonlinear finite-element analyses", J. Struct. Eng., 138(10), 1214-1230. https://doi.org/10.1061/(ASCE)ST.1943-541X.0000562
  31. Tsavdaridis, K.D., Faghih, F. and Nikitas, N. (2014), "Assessment of Perforated Steel Beam-to-Column Connections Subjected to Cyclic Loading", J. Earthq. Eng., 18(8), 1302-1325. https://doi.org/10.1080/13632469.2014.935834
  32. Verweij, J.G. (2010), "Cellular beam-columns in portal frame structures", Master thesis, Civil Engineering Department, Delft University of Technology, The Netherlands.
  33. Zhou, H., Wang, Y., Shi, Y., Xiong, J. and Yang, L. (2012), "Extremely low cycle fatigue prediction of steel beam-to-column connection by using a micro-mechanics based fracture model", Int. J. Fatigue, 48, 90-100.

피인용 문헌

  1. Nonlinear forced vibration of FG-CNTs-reinforced curved microbeam based on strain gradient theory considering out-of-plane motion vol.26, pp.6, 2016, https://doi.org/10.12989/scs.2018.26.6.673
  2. Lateral load resisting behavior of steel moment frames with reduced web section (RWS) beams vol.28, pp.None, 2016, https://doi.org/10.1016/j.istruc.2020.08.060
  3. Numerical investigation on the flexural links of eccentrically braced frames with web openings vol.39, pp.2, 2016, https://doi.org/10.12989/scs.2021.39.2.171
  4. The numerical parametric study of the stress-strain state of I-beams having versatile corrugated webs vol.6, pp.None, 2016, https://doi.org/10.22227/1997-0935.2021.6.676-687