Ultra-high molecular weight polyethylene (UHMWPE) is extensively used in total joint replacements. Wear, fatigue, and fracture have limited the longevity of UHMWPE components. For this reason, significant effort has been directed towards understanding the failure and wear mechanisms of UHMWPE, both at a micro-scale and a macro-scale, within the context of joint replacements. We have previously ...

Mechanical components, such as gears, are usually subjected to variable loads that induce multiaxial non-proportional stress states, which in turn can lead failure due fatigue. However, the material properties available forms of bending or shear fatigue limits. Multiaxial criteria be used bridge gap between data and actual loading conditions. different could results. The main goal this paper is...

Fatigue assessment of welded joints is vital for accurately designing and predicting lifetime many engineering structures. Assessing weld fatigue challenging due to the high variability in quality geometry because volatile nature joining method further challenges arise when assessing multiaxial fatigue. In this paper, two approaches, Findley criterion Modified Wöhler Curve Method, on several ex...

This work explores multiaxial stress effects on fatigue crack nucleation and growth in filled natural rubber based on experiments using short thin-walled cylindrical specimens subjected to axial and twist displacements. Cyclic stress–strain response exhibits significant initial softening relative to the monotonic response, followed by a more gradual additional softening. Irreversible breakage o...

Fatigue phenomena, which appear generally below the yield stress, is the cause of more than 80 % of in-service mechanical failures. However, the optimization of the weight and cost when designing mechanical components or structures, linked to improved performance, leads to increasingly stressed components. Therefore a fatigue design approach must be done by the engineer. This paper shows the ex...

In the last decades, many catastrophic events due to rupture of metallic components have been traced back fretting fatigue. order avoid failures such a contact phenomenon, researchers focused on fatigue behaviour different materials. present work, an experimental campaign carried out Al 7075-T6 aluminium alloy is simulated by employing multiaxial criterion proposed for The configuration flat-to...