Friction and wear become significant at small scale lengths, particularly in MEMS/NEMS. Nanopatterns are regarded as a potential approach to solve these problems. In this paper, we investigated the friction behavior of nanopatterned silicon surfaces with a periodical rectangular groove array in dry and wear-less single-asperity contact at the nanoscale using molecular dynamics simulations. The ...

in this paper, the propagation of the waves in the laminated composite plates which is subjected to low velocity impact is investigated using the finite element method. a rigid metallic projectile with spherical nose is considered and the impact of this projectile with laminated composite is studied in this study. considering a finite element model the governing equations of the problem is disc...

Résumé : The problem of force/motion control in robotic manipulation is studied. A noninteracting control law of grasping contact forces and object motions is proposed. In order to achieve force/motion trajectory tracking without transient errors, the output functional controllability of the controlled output is investigated. The framework throughout is the geometric approach to the multivariab...

Abstract This aim of this work is to exhibit an multiple impact law for rigid body dynamical system which meets the properties of closing the non-smooth dynamical equations and of corroborating experiments. This law is based on the impulse correlation ratio which is computed from equivalent regularised model with compliant contact. A case-study on 3-ball chain and -ball chain are delineated and...

We describe the first steps of spreading of a liquid droplet brought in contact with a solid that it wets completely. Usually, it is assumed that the dynamics of the droplet results from a balance between the spreading forces and viscosity. But before this classical stage, inertia resists to the motion, which leads to a very different dynamic law. We study experimentally the nature of this law,...

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected].. Virginia Law Review is collaborating with JSTOR to digiti...

The aim of this work is to exhibit a multiple impact law for rigid body dynamical system which meets the properties of closing the non-smooth dynamical equations and of corroborating experiments. This law is based on the impulse correlation ratio which is computed from equivalent regularized model with compliant contact. A case-study on 3-ball chain and -ball chain are delineated and results on...

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Duke University School of Law is collaborating with JSTOR ...

JSTOR is a not-for-profit service that helps scholars, researchers, and students discover, use, and build upon a wide range of content in a trusted digital archive. We use information technology and tools to increase productivity and facilitate new forms of scholarship. For more information about JSTOR, please contact [email protected]. Duke University School of Law is collaborating with JSTOR ...

A contact problem is considered in which an elastic half-plane is pressed against a rigid fractally rough surface, whose pro­ le is de­ ned by a Weierstrass series. It is shown that no applied mean pressure is su ̄ ciently large to ensure full contact and indeed there are not even any contact areas of ­ nite dimension|the contact area consists of a set of fractal character for all values of the ...