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Shear behavior of non-persistent joint under high normal load

Sarfarazi, V ; Sharif University of Technology | 2017

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  1. Type of Document: Article
  2. DOI: 10.1007/s11223-017-9872-6
  3. Publisher: Springer New York LLC , 2017
  4. Abstract:
  5. In this paper, the effect of joint separation on the shear behavior of planar non-persistent joints under high normal load has been investigated using PFC2D. Initially calibration of PFC was undertaken with respect to the data obtained from experimental laboratory tests to ensure the conformity of the simulated numerical models response. Furthermore, validation of the simulated models were cross checked with the results of direct shear tests performed on non-persistent jointed physical models. Through numerical direct shear tests, the failure process was visually observed, and the failure patterns were found reasonably similar to the experimentally observed trends. The discrete element simulations demonstrated that the failure pattern was mostly influenced by joint separation, while the shear strength was linked to the failure pattern and failure mechanism. © 2017 Springer Science+Business Media, LLC
  6. Keywords:
  7. Joint separation ; Non-persistent joint ; Particle flow code PFC2D ; Shear and tensile cracks ; Failure (mechanical) ; Direct shear test ; Discrete element simulation ; Experimental laboratory ; Failure mechanism ; Failure patterns ; Particle flow code ; Simulated model ; Tensile crack ; Shear flow
  8. Source: Strength of Materials ; 2017 , Pages 1-15 ; 00392316 (ISSN)
  9. URL: https://link.springer.com/article/10.1007%2Fs11223-017-9872-6