Journal of Civil and Environmental Engineering

Department of Engineering & Technology, Wollega University, Nekemte, Ethiopia

Publications

• Mini Review   
  A Constitutive Model of Sandstone
  Author(s): Sitesh Singh*
  
  It is extremely challenging to describe the time dependent behaviour of sandstone under stress due to its homogeneity at the macro scale and heterogeneity at the macro scale. Crack initiation and progression may be affected by macro scale heterogeneity. The development of macro scale fractures is strongly influenced by crack clusters. A time-dependent damage model is presented in this paper to investigate the effect of crack evolution on the occurrence of fractures during creep deformation. Based on the elastoplastic theory of rock and the micro-heterogeneous characteristics of sandstone, the instantaneous elastoplastic damage model of sandstone was initially developed. The Nishihara model and the elastoplastic damage constitutive model were combined to create a viscoelastic plastic creep damage model. The outcomes of the corresponding analytical solutions have confirmed the proposed .. Read More»
  DOI: 10.37421/2165-784X.2022.12.479

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