Computers and Concrete

  • 제5권4호
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  • Pages.329-342
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  • 2008
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Compaction process in concrete during missile impact: a DEM analysis

  • Shiu, Wenjie (Laboratoire "Sols Solides Structures et Risques", UMR5521, Universite Joseph Fourier, Grenoble Universite) ;
  • Donze, Frederic-Victor (Laboratoire "Sols Solides Structures et Risques", UMR5521, Universite Joseph Fourier, Grenoble Universite) ;
  • Daudeville, Laurent (Laboratoire "Sols Solides Structures et Risques", UMR5521, Universite Joseph Fourier, Grenoble Universite)
  • 투고 : 2007.11.01
  • 심사 : 2008.04.01
  • 발행 : 2008.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

A local behavior law, which includes elasticity, plasticity and damage, is developed in a three dimensional numerical model for concrete. The model is based on the Discrete Element Method (DEM)and the computational implementation has been carried out in the numerical Code YADE. This model was used to study the response of a concrete slab impacted by a rigid missile, and focuses on the extension of the compacted zone. To do so, the model was first used to simulate compression and hydrostatic tests. Once the local constitutive law parameters of the discrete element model were calibrated, the numerical model simulated the impact of a rigid missile used as a reference case to be compared to an experimental data set. From this reference case, simulations were carried out to show the importance of compaction during an impact and how it expands depending on the different impact conditions. Moreover, the numerical results were compared to empirical predictive formulae for penetration and perforation cases, demonstrating the importance of taking into account the local compaction process in the local interaction law between discrete elements.

키워드

참고문헌

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피인용 문헌

  1. A local constitutive model for the discrete element method. Application to geomaterials and concrete vol.2, pp.2, 2015, https://doi.org/10.1007/s40571-015-0044-9
  2. Combined Numerical-Statistical Analyses of Damage and Failure of 2D and 3D Mesoscale Heterogeneous Concrete vol.2015, 2015, https://doi.org/10.1155/2015/702563
  3. A new contact model to improve the simulated ratio of unconfined compressive strength to tensile strength in bonded particle models vol.69, 2014, https://doi.org/10.1016/j.ijrmms.2014.03.008
  4. DEM Simulation of Laboratory Compaction of Asphalt Mixtures Using an Open Source Code vol.27, pp.3, 2015, https://doi.org/10.1061/(ASCE)MT.1943-5533.0001069
  5. A DEM model for soft and hard rocks: Role of grain interlocking on strength vol.61, pp.2, 2013, https://doi.org/10.1016/j.jmps.2012.10.005
  6. Discrete element modeling of the microbond test of fiber reinforced composite vol.49, pp.2, 2010, https://doi.org/10.1016/j.commatsci.2010.05.003
  7. A discrete element model of concrete under high triaxial loading vol.33, pp.9, 2011, https://doi.org/10.1016/j.cemconcomp.2011.01.003
  8. Discrete element modelling of missile impacts on a reinforced concrete target vol.34, pp.1, 2009, https://doi.org/10.1504/IJCAT.2009.022700
  9. Computational technology for analysis of 3D meso-structure effects on damage and failure of concrete vol.80, 2016, https://doi.org/10.1016/j.ijsolstr.2015.11.018
  10. Dynamic simulation of powder packing structure for powder bed additive manufacturing pp.1433-3015, 2018, https://doi.org/10.1007/s00170-018-1697-3
  11. Mesoscale modelling of concrete for static and dynamic response analysis -Part 1: model development and implementation vol.37, pp.2, 2008, https://doi.org/10.12989/sem.2011.37.2.197
  12. High-velocity impact of large caliber tungsten projectiles on ordinary Portland and calcium aluminate cement based HPSFRC and SIFCON slabs -Part II: numerical simulation and validation vol.40, pp.5, 2008, https://doi.org/10.12989/sem.2011.40.5.617
  13. Halo approach to evaluate the stress distribution in 3D discrete element method simulation: validation and application to flax/bio based epoxy composite vol.27, pp.6, 2008, https://doi.org/10.1088/1361-651x/ab20d3
  14. Microscopic Change in Hardened Cement Paste due to High-Speed Impact vol.17, pp.9, 2019, https://doi.org/10.3151/jact.17.518
  15. On the Determination of Coordination Numbers of Coupled DEM-DFN Model for Modeling Fractured Rocks vol.9, pp.None, 2021, https://doi.org/10.3389/feart.2021.665275