Abstract Dynamic simulation of CO 2 migration requires a variety modeling parameters fed by geomechanical models. The confidence these material groups such as porosity and permeability is crucial in achieving successful simulations. Based on the geophysical parameters, we estimated distributions Paaratte Formation Otway site, one storage project Australia. Considering nonlinear relations betwee...

Nonlinear dynamic model of the coupled lateral-torsional vibrations of a gear transmission system is developed, in which time-varying gear meshing stiffness, errors, and gaps are considered. The fundamental rules of the system’s multi-harmonic dynamic response have been obtained based on the time domain diagram, frequency domain diagram, phase plot, and Poincaré map. Therefore, estimation of th...

Robustness of reinforced concrete (RC) structures is an ongoing challenging research topic in the engineering community. During extreme event, loss vertical load-bearing elements can activate large-deformation resisting mechanisms such as membrane and catenary actions beams floor slabs cast-in-situ RC buildings to resist gravity loads. However, few studies have been conducted for precast (PC) b...

The permeability and tortuosity of pore-scale two and three-dimensional random porous media were calculated using the Lattice Boltzmann method (LBM). Effects of geometrical parameters of medium on permeability and tortuosity were investigated as well. Two major models of random porous media were reconstructed by computerized tomography method: Randomly distributed rectangular obstacles in a uni...

In this paper static and dynamic response of nanotweezers composed of two carbon nanotube (CNT) arms are investigated. Taking into account a continuum model and considering the electrostatic actuation as well as the presence of the van der Waals forces, the static nonlinear equations are solved by a step by step linearization and Galerkin projection method. Simulating the closing dynamics of a ...