Contact mechanics of high-density polyethylene: Effect of pre-stretch on the frictional response and the onset of wear

Abstract

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RETRACTED: The Effect of Intrinsic Mechanical Properties on Reducing the Friction-Induced Ripples of Hard-Filler-Modified HDPE

“…In this field, a complex situation arises because the materials begin to accumulate in front of the indenter tip, initiating ripple formation. This phenomenon can be attributed to the compression effect [ 39 ] ( Figure 9 B). The balance between strain-softening and strain-hardening determines the accumulation of materials.…”

The Reduction in the Deformation of HDPE Composites Using Self-Lubricating Fillers in an Aqueous Environment

“…Moreover, the aggregating phenomenon observed in the composites with high concentration of Si 3 N 4 , led to severe surface deformation on the HDPE composites, and reduced its yield stress and strain hardening properties ( Figure 3 ). The wear-resistance due to higher yield stress and strain hardening [ 44 , 45 ], reduced the surface deformation in combination with the lubricating effect due to a 4 wt% addition of Si 3 N 4 . However, the reduced strain–stress response and aggregating phenomenon of Si 3 N 4 at high concentrations resulted in a rough and worn surface with severe cracking and tearing deformations.…”

Investigation of the Tensile Strength and Chemical Interaction & Structure of Ultra-High Molecular Weight Polyethylene/ Silicon Carbide Nanocomposite

“…One of the superior thermoplastic polymers amongst all is the ultra-high molecular weight polyethylene, it is characterized with its outstanding physical and mechanical features including high toughness, lubricity, wear resistance and biocompatibility [10].This in turn make it a good candidate in applications that involve unique mechanical properties like the artificial joints implants, knee and hip joint replacements for example [11 -12]. Moreover, it's widely used in the manufacturing of bearing elements, gears, oil transportation pipes, guide rails and sporting goods [1,5,11]. A further improvement of tribological, mechanical, thermal and electrical properties of UHMWPE was intensively researched so as to get a more reliable engineered polymer with longer life time [13,14].…”