Buscar
Mostrando ítems 1-10 de 985
An augmented Lagrangian technique combined with a mortar algorithm for modelling mechanical contact problems
(Wiley, 2013-01)
A finite element formulation for three dimensional (3D) contact mechanics using a mortar algorithm combined with a mixed penalty-duality formulation from an augmented Lagrangian approach is presented. In this method, no ...
High-order Mortar-based Element Applied To Nonlinear Analysis Of Structural Contact Mechanics
(ELSEVIER SCIENCE SALAUSANNE, 2015)
Signature of atomic structure in the quantum conductance of gold nanowires
(American Physical SocCollege PkEUA, 2000)
Immunopathology of allergic contact dermatitis
(SOC BRASILEIRA DERMATOLOGIA, 2011)
Allergic contact dermatitis is the consequence of an immune reaction mediated by T cells against low molecular weight chemicals known as haptens. It is a common condition that occurs in all races and age groups and affects ...
On the undamped free vibration of a mass interacting with a Hertzian contact stiffness
(2011-12-01)
Three methods are used to determine the natural frequency of undamped free vibration of a mass interacting with a Hertzian contact stiffness. The exact value is determined using the first integral of motion. The harmonic ...
A numerical and analytical study of the stress field generated by the contact between a rail and a wheel
(Springer, 2020-06-19)
This article presents a study of the contact stresses between a rail and a wheel, in order to understand the mechanism related to this application. When two bodies, regardless of their forms, touch each other due to an ...
Hybrid nanocomposites containing carboxymethylcellulose and silver nanoparticles
(2013-03-01)
Silver nanoparticles have high temperature stability and low volatility, and at the nanoscale are known to be an effective antifungal and antimicrobial agent. The present investigation involves the synthesis of silver ...
Three-dimensional numerical solution for wear prediction using a mortar contact algorithm
(Wiley, 2013-08-14)
A finite element formulation to compute the wear between three-dimensional flexible bodies that are in contact with each other is presented. The contact pressure and the bodies displacements are calculated using an augmented ...
On the contact stiffness and nonlinear vibration of an elastic body with a rough surface in contact with a rigid flat surface
(Elsevier B.V., 2015-01-01)
The surface topography of engineering rough surfaces has an enormous influence on contact mechanics of the interface and further the dynamics of the contact system. In this paper, the force-deflection characteristic and ...
Characterization and interaction of geometric and contact/impact nonlinearities in dynamical systems
(2022-03-15)
In this work, we study how a contact/impact nonlinearity interacts with a geometric cubic nonlinearity in an oscillator system. Specific focus is shown to the effects on bifurcation behavior and secondary resonances (i.e., ...