Computers and Concrete

  • 제1권3호
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  • Pages.227-248
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  • 2004
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  • 1598-8198(pISSN)
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  • 1598-818X(eISSN)
테크노프레스 (Techno-Press)
권호 표지
DOI QR코드

DOI QR Code

An experimental-computational investigation of fracture in brittle materials

  • De Proft, K. (Mechanics of Materials and Constructions, Vrije Universiteit Brussel) ;
  • Wells, G.N. (Department of Faculty of Civil Engineering and Geosciences, Delft University of Technology) ;
  • Sluys, L.J. (Department of Faculty of Civil Engineering and Geosciences, Delft University of Technology) ;
  • De Wilde, W.P. (Department of Mechanics of Materials and Constructions, Vrije Universiteit Brussel)
  • 투고 : 2003.08.13
  • 심사 : 2004.07.12
  • 발행 : 2004.08.25
⟨ 이전 논문 다음 논문 ⟩

초록

A combined experimental-computational study of a double edge-notched stone specimen subjected to tensile loading is presented. In the experimental part, the load-deformation response and the displacement field around the crack tip are recorded. An Electronic Speckle Pattern Interferometer (ESPI) is used to obtain the local displacement field. The experimental results are used to validate a numerical model for the description of fracture using finite elements. The numerical model uses displacement discontinuities to model cracks. At the discontinuity, a plasticity-based cohesive zone model is applied for monotonic loading and a combined damage-plasticity cohesive zone model is used for cyclic loading. Both local and global results from the numerical simulations are compared with experimental data. It is shown that local measurements add important information for the validation of the numerical model. Consequently, the numerical models are enhanced in order to correctly capture the experimentally observed behaviour.

키워드

참고문헌

  1. Moes, N., Dolbow, J. and Belytschko, T.(1999), "A finite element method for crack growth without remeshing", Int. J. Num. Meth. Eng., 46, 131-150. https://doi.org/10.1002/(SICI)1097-0207(19990910)46:1<131::AID-NME726>3.0.CO;2-J
  2. Wells, G. N. and Sluys, L. J. (2001), "A new method for modeling cohesive cracks using finite elements", Int. J. Num. Meth. Eng., 50(12), 2667-2682. https://doi.org/10.1002/nme.143
  3. Wells, G. N.(2001), "Discontinuous modelling of strain localization and failure", Ph. D. thesis, Delft University of Technology.
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  1. Mesoscopic modelling of masonry using weak and strong discontinuities vol.255, 2013, https://doi.org/10.1016/j.cma.2012.11.005
  2. Punching shear behavior of recycled aggregate concrete vol.21, pp.3, 2004, https://doi.org/10.12989/cac.2018.21.3.321