In this study, three-dimensional discrete element method (DEM) simulation of the impact breakage behaviour of agglomerates were performed using a Timoshenko beam bond model which considers axial, shear, twisting and bending behaviours on the bonds. An advantage of the Timoshenko beam bond model is ...
I will begin with some observations. Mathematical models of all physical phenomena have been developed using laws of physics, experimental observations, and assumptions. There is no such thing as an “exact” mathematical model of anything we model, and we can only improve...
An advantage of the Timoshenko beam bond model is the pertinent parameters of the bond contact have clear physical meaning and therefore could be determined through corresponding experimental charac- terisations. The mechanical properties of the bonds in this study were firstly calibrated using ...
In this paper, we focus on the case of a two-layer beam with full interaction (perfect bond). An analysis for free vibration and wave propagation of shear-deformation composite beams is developed. The transverse shear deformation of the two layers is considered by assuming each layer acts as...
Both a simply supported and a continuous beam are considered in order to validate the proposed model, at least within the linear range. A parametric analysis has been carried out to study the influence of both shear flexibility and partial interaction on the global behaviour of composite beams. ...
To model fiber failures in random fiber networks, we have developed an elastoplastic Timoshenko beam finite element with embedded discontinuities. The method is based on the theory of strong discontinuities where the generalized displacement field is enhanced by a jump. The continuum mechanics ...
surface longitudinal displacement, respectively; ha is the bonding layer thickness; hb is the beam thickness; and w is the transverse displacement of beam; 𝐺∗𝑎Ga* is the linear function of differential operator which for the Kelvin-Voigt model of bonding layer material can be expressed ...