In order to properly model the friction and wear of elastomer materials, it is essential to understand some specific mechanical and tribological features. Mechanical characteristics of elastomer materials are different from those of metals and other relatively hard materials. Elastomers can bear large deformations, the stress-strain curves are non-linear, time and temperature dependent. When th...

this research aims to explore the observance of syllable contact law (scl) in persian simple words. to achieve this aim, 4661 contacts were extracted from 9553 simple polysyllabic words. results show that in 45% of the syllable boundaries the sonority drops from the coda of the first syllable to the onset of the next one. also in 68% of the consonant contacts in pure persian words scl is observ...

Modelling of the contact between moving rough surfaces allows a better understanding of friction and wear mechanisms, which can be used in engineering solutions. This issue has been examined using a number of approaches. The statistical type of a contact model is still the most popularmodel used in rough surfaces contact.This statement does not mean that it is the best solution of contact rough...

We carry out molecular statics (MS) simulations to study the indentation process of Pt (1 1 1) surfaces using an indenter with radius 5–20 nm. The substrate and are either bare or graphene-covered. Our show that influence adhesion between tip can be significantly reduced by decreasing strength range atoms on indenter, enhancing stiffness. results suggest elastic response exhibits weaker after c...

A first-order system least squares formulation for the Signorini problem modeling frictionless contact in linear elasticity is studied. In addition to the displacement field, the stress tensor is used as an independent process variable. A contact boundary term is added to the usual least squares functional in order to achieve coercivity and continuity in appropriate norms. The discrete function...

Simple methods of finding the transient and steady state stick zones for frictional contacts subject to varying normal shear forces are discussed. Particular emphasis is given Hertzian contact because algebra very simple this geometry, but results may be carried over any other geometry that can solved within framework half plane theory, including widely-occurring flat with radiused edges.

The data included here provides a basis for understanding "Interior morphology of high-performance polyethylene fibers revealed by modulus mapping" (K.E. Strawhecker, E.J. Sandoz-Rosado, T.A. Stockdale, E.D. Laird, 2016) [1], in specific: the multi-frequency (AMFM) atomic force microscopy technique and its application to ultra-high-molecular-weight Polyethylene (UHMWPE) fibers. Furthermore, the...