Structural Engineering and Mechanics

  • 제68권3호
  • /
  • Pages.335-344
  • /
  • 2018
  • /
  • 1225-4568(pISSN)
  • /
  • 1598-6217(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Material structure generation of concrete and its further usage in numerical simulations

  • Husek, Martin (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology) ;
  • Kala, Jiri (Institute of Structural Mechanics, Faculty of Civil Engineering, Brno University of Technology)
  • 투고 : 2017.11.13
  • 심사 : 2018.09.17
  • 발행 : 2018.11.10
⟨ 이전 논문 다음 논문 ⟩

초록

The execution of an experiment is a complex affair. It includes the preparation of test specimens, the measurement process itself and also the evaluation of the experiment as such. Financial requirements can differ significantly. In contrast, the cost of numerical simulations can be negligible, but what is the credibility of a simulated experiment? Discussions frequently arise concerning the methodology used in simulations, and particularly over the geometric model used. Simplification, rounding or the complete omission of details are frequent reasons for differences that occur between simulation results and the results of executed experiments. However, the creation of a very complex geometry, perhaps all the way down to the resolution of the very structure of the material, can be complicated. The subject of the article is therefore a means of creating the material structure of concrete contained in a test specimen. Because a complex approach is taken right from the very start of the numerical simulation, maximum agreement with experimental results can be achieved. With regard to the automation of the process described, countless material structures can be generated and randomly produced samples simulated in this way. Subsequently, a certain degree of randomness can be observed in the results obtained, e.g., the shape of the failure - just as is the case with experiments. The first part of the article presents a description of a complex approach to the creation of a geometry representing real concrete test specimens. The second part presents a practical application in which the numerical simulation of the compressive testing of concrete is executed using the generated geometry.

키워드

과제정보

연구 과제번호 : Damage assessment identification for reinforced concrete subjected to extreme loading, Experimental and numerical verifications of meshfree methods in cases of dynamically loaded concrete structures

연구 과제 주관 기관 : Czech Science Foundation, Brno University of Technology

참고문헌

  1. Agrawal, R. and Hora. M.S. (2012), "Nonlinear interaction behaviour of infilled frame-isolated footings-soil system subjected to seismic loading", Struct. Eng. Mech. J., 44(1), 85-107.
  2. Aurenhammer, F. (1991), "Voronoi diagrams-a survey of a fundamental geometric data structure", ACM Comput. Surv., 23(3), 345-405. https://doi.org/10.1145/116873.116880
  3. Bazant, Z. (1984), "Microplane model for strain-controlled inelastic behavior", Mech. Eng. Mater., 45-59.
  4. Bazant, Z. and Ozbolt, J. (1990), "Non-local microplane model for fracture, damage and size effect in structures", J. Eng. Mech., 128(11), 1119-1149.
  5. Belytschko, T., Guo, Y., Liu, W.K. and Xiao, P. (2000), "A unified stability analysis of meshless particle methods", Int. J. Numer. Meth. Eng., 48(9), 1359-1400. https://doi.org/10.1002/1097-0207(20000730)48:9<1359::AID-NME829>3.0.CO;2-U
  6. Benz, W. (1989), Smoothed Particle Hydrodynamics: A Review, NATO Workshop.
  7. Han, J., Zhao, X., Tang, Z., Ma, H. and Li, Z. (2017), "Study on the bearing capacity of cold-formed steel under different boundary conditions in transmission towers", Earthq. Struct., 12(6), 665-672. https://doi.org/10.12989/EAS.2017.12.6.665
  8. Hokes, F., Kala, J. and Krnavek, O. (2016), "Nonlinear numerical simulation of a fracture test with use of optimization for identification of material parameters", Int. J. Mech., 10, 159-166.
  9. Husek, M., Hokes, F., Kala, J. and Kral, P. (2017), "Inclusion of Randomness into SPH Simulations", WSEAS Trans. Heat Mass Transfer, 12, 1-10.
  10. Husek, M., Kala, J., Kral, P. and Hokes, F. (2016), "Effect of the support domain size in SPH fracture simulations", Int. J. Mech., 10, 396-402.
  11. Kala, J. and Husek, M. (2016a), "Improved element erosion function for concrete-like materials with the SPH method", Shock Vibr., 1-13.
  12. Kala, J. and Husek, M. (2016b), "High speed loading of concrete constructions with transformation of eroded mass into the SPH", Int. J. Mech., 10, 145-150.
  13. Kala, Z. (2016), "Global sensitivity analysis in stability problems of steel frame structures", J. Civil Eng. Manage., 22(3), 417-424. https://doi.org/10.3846/13923730.2015.1073618
  14. Karperien, A.B. (2004), "Defining microglial morphology: Form, function, and fractal dimension", Ph.D. Dissertation, Charles Sturt University, Sydney, Australia.
  15. Karperien, A.B. (2013), FracLac for ImageJ, .
  16. Kessenich J., Sellers G. and Shreiner D. (2017), OpenGL Programming Guide, Addison-Wesley, Boston, Massachusetts, U.S.A.
  17. Kral, P., Kala, J. and Hradil, P. (2016), "Verification of the elastoplastic behavior of nonlinear concrete material models", Int. J. Mech., 10, 175-181.
  18. Kralik, J., Klabnik, M. and Grmanova, A. (2015), "Probability analysis of a composite steel and concrete column loaded by fire", Appl. Mech. Mater., 769, 126-132. https://doi.org/10.4028/www.scientific.net/AMM.769.126
  19. Liu, G.R. and Liu, M.B. (2003), Smoothed Particle Hydrodynamics: A Meshfree Particle Method, New Jersey: World Scientific, Hackensack, Bergen County, U.S.A.
  20. Livermore Software Technology Corporation (2017), LS-DYNA Theory Manual, LSTC, Livermore, California, U.S.A.
  21. McIntyre, N.E. and Wiens, J.A. (2000), "A novel use of the lacunarity index to discern landscape function", Landsc. Ecol., 15(4), 313-321. https://doi.org/10.1023/A:1008148514268
  22. Miyamoto, A. and Isoda, S. (2012), "Sensitivity analysis of mechanical behaviors for bridge damage assessment", Struct. Eng. Mech., 41(4), 539-558. https://doi.org/10.12989/sem.2012.41.4.539
  23. Moes, N., Dolbow, J. and Belytschko, T. (1999), "A finite element method for crack growth without remeshing", Int. J. Numer. Meth. Eng., 46(1), 131-150. https://doi.org/10.1002/(SICI)1097-0207(19990910)46:1<131::AID-NME726>3.0.CO;2-J
  24. Murray, Y.D. (2007), User's Manual for LS-DYNA Concrete Material Model 159, FHWA-HRT-05-062.
  25. Murray, Y.D., Abu-Odeh, A. and Bligh, R. (2007), Evaluation of Concrete Material Model 159, FHWA-HRT-05-063.
  26. Nam, J.W., Yoon, I.S. and Yi, S.T. (2016), "Numerical evaluation of FRP composite retrofitted reinforced concrete wall subjected to blast load", Comput. Concrete, 17(2), 215-225. https://doi.org/10.12989/cac.2016.17.2.215
  27. Perlin, K. (1985), "An image synthesizer", ACM SIGGRAPH Comput. Graph., 19(3), 287-296. https://doi.org/10.1145/325165.325247
  28. Plotnick, R.E., Gardner, R.H. and O'Neill, R.V. (1993), "Lacunarity indices as measures of landscape texture", Landsc. Ecol., 8(3), 201-211. https://doi.org/10.1007/BF00125351
  29. Plotnick, R.E., Gardner, R.H., Hargrove, W.W., Prestegaard, K. and Perlmutter, M. (1996), "Lacunarity analysis: A general technique for the analysis of spatial patterns", Phys. Rev. E, 53(5), 5461-5468.
  30. Rahmanian, I., Lucet, Y. and Tesfamariam, S. (2014), "Optimal design of reinforced concrete beams: A review", Comput. Concrete, 13(4), 457-482. https://doi.org/10.12989/CAC.2014.13.4.457
  31. Smith, T.G., Lange, G.D. and Marks, W.B. (1996), "Fractal methods and results in cellular morphology-dimensions, lacunarity and multifractals", J. Neurosci. Meth., 69(2), 123-136. https://doi.org/10.1016/S0165-0270(96)00080-5
  32. Swegle, J.W., Hicks, D.L. and Attaway, S.W. (1995), "Smoothed particle hydrodynamics stability analysis", J. Comput. Phys., 116(1), 123-134. https://doi.org/10.1006/jcph.1995.1010
  33. Vivo, P.G. and Lowe, J. (2015), The Book of Shaders, .
  34. Willam, K. and Carol, I. (1995), "Discrete Versus smeared crack analysis", Proceedings of the 2nd International Association of Fracture Mechanics for Concrete and Concrete Structures, Zurich, Switzerland.