✍ Scribed by I. Grabec; J. Petrišič
No coin nor oath required. For personal study only.
In the article a model of a two-dimensional lattice is formulated which is convenient for the description of acoustic emission in planar samples. The rheological parameters of lattice elements are prescribable, so that nonlinear and viscoelastic material properties can be accounted for. The transient phenomena caused by changes in the material properties are characterized by the temporal dependence of the displacement field, which is numerically determined by the Runge-Kutta method. Examples corresponding to acoustic emission due to cracking of a stressed strip are presented in the article, and the influence of viscous damping is demonstrated. In order to estimate the applicability of the proposed discrete model for the description of AE in real systems, numerical results are compared with the signals recorded on a bent cantilever beam of PMMA.
📜 SIMILAR VOLUMES
## Abstract Interaction between rotation and intrinsic motion is considered in the framework of the semiphenomenological model of the nucleus (the schemes of strong and weak coupling). The theory is applied to the description of the rotational spectra up to states with high values of the angular mo
This paper addresses developments on a constitutive model able to describe the post-localized behaviour of structures composed by geomaterials. The behaviour of the shear band is defined by means of a specific non-linear constitutive equation in the framework of large strain. Concept of 'consistency