A nonlinear meshfree method is proposed based on the weakened weak formulation for capturing the coupled hydromechanical behaviour of saturated elastoplastic porous media. The problem domain is spatially discretised by a triangular background mesh, and point interpolation method is adopted for creating the shape functions. A smoothed strain is assigned to each of the smoothing domains which are formed on top of the background mesh. A novel approach is offered for taking the coupling effect of solid and fluid phases into account.
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