Abstract A model is proposed herein to investigate the incipient sliding of contacts in presence both friction and adhesion, where interfacial response modeled based on traction-separation laws. Maugis-like parameter defined characterize tangential direction. Subsequently, used contact between a smooth cylinder flat body, adhesion-friction interactions are strong. range behaviors observed when ...

If a discrete elastic system with frictional interfaces is subjected to periodic loading, the eventual steady-state response may depend on the initial condition or an initial transient phase of the loading history. In cases where shakedown is possible, it is known that it will occur for all initial conditions if there is no coupling between slip displacements and normal contact tractions, but t...

1. Inefficiency of the powers. 2. Abnormality of the passages?a, Hard ; b, soft. 3. Malpresentation or malposition of the passenger. 4. Emergencies arising in mother or child demanding speedy delivery. Indications coming under any of these divisions, with the exceptions of the abnormalities of the hard passages, may arise witli a normal condition of the bony pelvis. From the point of view of th...

Elastic systems with frictional interfaces subjected to periodic loading are sometimes predicted to ‘shake down’ in the sense that frictional slip ceases after the first few loading cycles. The similarities in behaviour between such systems and monolithic bodies with elastic–plastic constitutive behaviour have prompted various authors to speculate that Melan’s theorem might apply to them – i.e....

A general approach to numerically simulating wear in rolling and sliding contacts is presented in this thesis. A simulation scheme is developed that calculates the wear at a detailed level. The removal of material follows Archard‟s wear law, which states that the reduction of volume is linearly proportional to the sliding distance, the normal load and the wear coefficient Careful attention is p...

In order to improve the security of the vehicles, the car industry focuses more and more on Active Safety. The objective is to introduce embedded electronic control systems to detect dangerous conditions, warn the driver and, in emergency situations, even take actions to avoid crash or at least reduce the violence of the impact. The tire-road friction coefficient which defines the maximum tract...

Footwear outsole design is an important factor for shoe-floor friction and preventing slipping. Shoes with small, uniformly-separated tread blocks (often included on slip-resistant shoes) have decreased slip risk due to their increased better under-shoe fluid drainage. However, these traction performance metrics (friction drainage) diminish wear. This study quantifies shoe in response natural w...

In the present study, plate impact pressure±shear friction experiments are conducted to provide insight into timeresolved dry sliding characteristics of metal on metal at normal pressures of approximately 1.5 GPa, slip speeds up to 60 m/s and interfacial temperatures as high as 8008C. The plate impact friction experiments represent a signi®cant improvement over conventional dynamic friction exp...

In an effort to reduce golf turf damage the traditional metal spike golf shoe has been redesigned, but shoe-ground biomechanical evaluations have utilised artificial grass surfaces. Twenty-four golfers wore three different golf shoe traction designs (traditional metal spikes, alternative spikes, and a flat-soled shoe with no additional traction) when performing shots with a driver, 3 iron and 7...