Computers and Concrete

  • 제7권1호
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  • Pages.39-51
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  • 2010
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

Simulation of brittle fracture of autoclaved aerated concrete

  • Kadashevich, I. (Otto-von-Guericke-Universitat Magdeburg, Institut fur Experimentelle Physik) ;
  • Stoyan, D. (TU Bergakademie Freiberg, Institut fur Stochastik)
  • 투고 : 2007.12.17
  • 심사 : 2009.07.17
  • 발행 : 2010.02.25
⟨ 이전 논문 다음 논문 ⟩

초록

The system of pores of autoclaved aerated concrete (AAC) is described by the so-called cherry-pit model, a random system of partially interpenetrating spheres. For the simulation of fracture processes, the solid phase is approximated by an irregular spatial network of beams obtained by means of the so-called radical tessellation with respect to the pore spheres. FE calculations using standard software (ANSYS) yield the strain energies of the beams. These energies are used as fracture criterion according to which highly loaded beams are considered as broken and are removed from the network. The paper investigates the relationship between mean fracture strength and microstructure for structures close to real AAC samples and virtual structures with particular geometrical properties.

키워드

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피인용 문헌

  1. Influence of randomness in topology, geometry and material properties on the mechanical response of elastic central-force networks vol.40, 2015, https://doi.org/10.1016/j.probengmech.2015.02.005