NUMERICAL ANALYSIS OF BFRP REINFORCED CONCRETE SLAB EXPOSED TO IMPACT LOADS
DOI:
https://doi.org/10.14311/CEJ.2022.02.0027Keywords:
Impact loading, Concrete structure, Numerical analysis, Finite element method, Basalt fibre reinforced plastic (BFRP)Abstract
This paper describes advanced numerical analysis of a simply supported reinforced concrete slab exposed to close range explosion of a TNT charge. Finite element method (FEM) has been utilized in order to conduct the analysis. Non-linear material model for concrete slab is adopted. Reinforcing bars made of basalt fibre reinforced plastic (BFRP) are considered by elastic-plastic material model. 3D numerical model has been created, and a software with explicit solver (LS-Dyna) has been used in order to conduct analyses. A simplified modelling method of the blast loading has been utilized, which is based on the consideration of the load effects as a time dependent pressure. Several cases with different mesh size or different finite element formulation are investigated. The results are compared with experimental data based on study of fellow researchers. Match between the numerical analyses and measurements is discussed and considered as satisfying.
Downloads
References
Králik, J. (2014). Safety of nuclear power plant against the aircraft attack. Applied Mechanics and Materials, vol. 617, p. 76 – 80. ISSN: 1662-7482. DOI: 10.4028/www.scientific.net/AMM.617.76.
Livermore Software Technology Corporation (1997), LS-Dyna® Theoretical Manual. Livermore, CA: Livermore Software Technology Corporation.
Kinney, G. F., Graham K.J. (1985). Explosive shocks in Air. Springer-Verlag Berlin Heidelberg. Online ISBN: 978-3-642-86682-1, 1985. DOI: 10.1007/978-3-642-86682-1.
Tabatabaei, Z.S., Volz J.S. (2012). A comparison between three different blast methods in LS-Dyna®: LBE, MM-ALE, Coupling of LBE and MM-ALE. Paper presented at the 12th International LS-Dyna® Users Conference, Detroit U.S. 2012.
Slavik, T. (2010). A coupling of empirical explosive blast loads to ALE air domains in Ls-Dyna®. Paper presented at the 7th European LS-Dyna® Conference, Salzburg Austria 2009.
Gingold R.A., Monaghan J.J. (1977). Smoothed particle hydrodynamics: theory and application to non-spherical stars. Monthly Notices of the Royal Astronomical Society vol. 181, is. 3, p. 375–389, ISSN (online): 1365-2966. DOI: 10.1093/MNRAS/181.3.375.
Lucy L.B. (1977). A numerical approach to the testing of the fission hypothesis. The Astronomical Journal, vol. 82, p. 1013–24. ISSN: 00046256. DOI: 10.1086/112164.
Schwer, L., Hailong T., Mhamed, S., (2015). LS-Dyna Air Blast Techniques: Comparisons with Experiments for Close-in Charges. Paper presented at the 10th European LS-Dyna® Conference, Würzburg Deutschland 2015.
Trajkovski J. (2017). Comparison of MM-ALE and SPH methods for modelling blast wave reflections of flat and shaped surfaces. Paper presented at the 11th European LS-Dyna® Conference, Salzburg Österreich 2017.
Tai, Y.S., Chu T.L., Hu H.T. and Wu J.Y. (2011). Dynamic response of a reinforced concrete slab subjected to air blast load. Theoretical and Applied Fracture Mechanics. vol. 56, issue. 3, pages.140–147. ISSN 0167-8442. DOI: 10.1016/j.tafmec.2011.11.002.
Zhao, C.F., Chen J.Y. (2013). Damage mechanism and mode of square reinforced slab subjected to blast loading. Theoretical and Applied Fracture Mechanics. vol. 63-64, p. 54-62. ISSN 0167-8442. DOI: 10.1016/j.tafmec.2013.03.006.
Zhao, C.F., Chen J.Y., Wang Y. and Lu S.J. (2012). Damage mechanism and response of reinforced concrete containment structure under internal blast loading. Theoretical and Applied Fracture Mechanics. vol. 61, p. 12-20. ISSN 0167-8442. DOI: 10.1016/j.tafmec.2012.08.002.
Thiagarajan, G., Kadambi A.V., Robert S. and Johnson C.F. (2015). Experimental and finite element analysis of doubly reinforced concrete slabs subjected to blast loads. International Journal of Impact Engineering. vol. 75, p. 162-173. ISSN 0734-743X. DOI: 10.1016/j.ijimpeng.2014.07.018.
Dubec, B., Maňas P., Štoller J. and Stonis P. (2019). Experimental and numerical assessment of fibre reinforced concrete slab under blast load, ICMT 2019 - 7th International Conference on Military Technologies, Proceedings 2019. ISBN: 978-172814593-8. DOI: 10.1109/MILTECHS.2019.8870129.
Feng, J., et al. (2017). Experimental research on blast-resistance of one-way concrete slabs reinforced by BFRP bars under close-in explosion. Engineering Structures, vol. 150 p.550-561. ISSN: 0141-0296. DOI: 10.1016/j.engstruct.2017.07.074.
Schwer, L.E., Murray Y.D. (1994). A three invariant smooth cap model with mixed hardening. International Journal for Numerical and Analytical Methods in Geomechanics, vol. 18, pp. 657-688, DOI: 10.1002/nag.1610181002.
Jiang, H., Zhao J. (2015). Calibration of the continuous surface cap model for concrete, Finite Elements in Analysis and Design. vol. 97, p. 1-19. ISSN 0168-874X. DOI: 10.1016/j.finel.2014.12.002.
Randers-Pehrson, G., and Bannister K.A. (1997). Airblast loading model for DYNA2D and DYNA3D. Army Research Laboratory, Rept. ARL-TR-1310, U.S., 1997.
Friedlander, F.G. (1946). The diffraction of sound pulses I. Diffraction by a semi-infinite plane. Proceedings of the Royal Society A. 1946. ISSN 0080-5630. DOI: 10.1098/rspa.1946.0046.
Hopkinson, B., (1915) British Ordnance board minutes 13565, in: The National Archives, Kew, UK, pp.11.
Cranz, C., (1925) Lehrbuch der Ballistik. Erster Band. AusereBalistik, Springer Verlag, Berlin.
Karlos, V., Solomos G. (2013). Calculation of blast loads for application to structural components. JRC Technical Reports, Report EUR 26456 EN, Luxembourg. ISSN 1831-9424. DOI: 10.2788/61866.
Jindra, D., Hradil P., Kala J., Král P. (2020). Mesh size influence of the concrete slab FE model exposed to impact load for various material models. Transactions of VSB - Technical University of Ostrava, Civil engineering Series, 20(2), 1-7, DOI: 10.35181/tces-2020-0010.
Downloads
Published
Issue
Section
License
Copyright (c) 2022 Stavební obzor - Civil Engineering Journal
This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgement of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgement of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work (See The Effect of Open Access).
How to Cite
Accepted 2022-07-26
Published 2022-07-31
