Abstract: Dynamic contact problems are frequently analyzed by using interface finite elements (penalty elements) and explicit time integration. A major difficulty with such procedures is the selection of a time increment that provides ...

Abstract: A model for wear based on energy is developed. The model accounts for the volume of wear material produced during sliding and includes the possibility of debris reattachment to the contact ...

Abstract: A constitutive law for dilatant frictional behavior is reviewed. It is developed by distinguishing between the macrostructural and raicrostructural features of a material discontinuity. Macrostructural considerations provide ...

Abstract: Much research has been done on Surface Mount Technology (SMT) using the Finite Element Method (FEM). Little of this, however, has employed fracture mechanics and/or continuum damage mechanics. ...

Abstract: Results obtained from numerical simulations of direct (or ring) shear tests on ASTM standard graded (Ottawa) sand using the discrete-element method with periodic boundary conditions in both two and three dimensions are ...

Abstract: Using the discrete element method (DEM) with clustering, a novel means of numerically modeling damage of particles is presented. Damage, such as grain crushing, is treated by allowing clusters to break apart according to ...

Abstract: This paper presents a detailed computational investigation of the effect of particle shape on the interface shear behavior of granular materials. The discrete element method (DEM) using clusters to model rough particles ...