Rights: © 2014 Elsevier. This is the post print version of the following article: Saikko, Vesa. 2014. Effect of shelf versus accelerated aging of UHMWPE on delamination in knee wear simulation. Tribology International. Volume 73, May 2014. 10-16. ISSN 0301-679X (printed). DOI: 10.1016/j.triboint.2014.01.001, which has been published in final form at http://www.sciencedirect.com/science/article/...

By introducing low-entanglement UHMWPE, the mechanical properties of polyolefins are improved to varying degrees. For polypropylene, lack interaction between UHMWPE and polypropylene results in an unsatisfactory reinforcement effect, disentangled state makes it easier for particles form defects driven by a chain explosion. In contrast, regarding polyethylene elastomer containing ethylene segmen...

PURPOSE To determine the magnitude of image distortion between two-dimensional (2D) fast-spin-echo (FSE) images and 3D-MAVRIC by using a phantom with samples of common materials used in total joint arthroplasty. MATERIALS AND METHODS A phantom was constructed to hold samples of 316 stainless steel, cobalt chrome, titanium, and ultra-high molecular weight polyethylene (UHMWPE), and to permit t...

A more robust pre-clinical wear simulation framework is required in order to simulate wider and higher ranges of activities, observed in different patient populations such as younger more active patients. Such a framework will help to understand and address the reported higher failure rates for younger and more active patients (National_Joint_Registry, 2016). The current study has developed and...

Investigation on Conventional and Cross-linked UHMWPE Artificial Joint Biomaterials Using a BiotriboPOD Method Jiajia Chen1, Fei Tang1, Zikai Hua1 1School of Mechatronics Engineering and Automation, Shanghai University, China. Corresponding Author: Zikai Hua, School of Mechatronics Engineering and Automation, Shanghai University, No. 149, Yanchang Rd, 200072Shanghai, PRChina. Tel: +86 5633 1517...

Ultrahigh molecular weight polyethylene (UHMWPE) is a unique polymer with outstanding physical and mechanical properties that makes it particularly attractive to fabricate the bearing surface for artificial joints. The growing demand for UHMWPE as a bearing material for joint replacement has lead to active research in the development and understanding of its properties in addition to nanocompos...

Ropes of ultra-high-molecular-weight polyethylene (UHMWPE) are replacing steel wires in many applications and nondestructive testing to monitor their condition is scientific commercial interest. In this work, wide-angle X-ray scattering (WAXS) combined with linear discriminant analysis (LDA) proposed as classification method distinguish between healthy damaged UHMWPE ropes. Healthy (as produced...

Mechanical behavior of Ultra-High Molecular Weight Polyethylene (UHMWPE) under high-velocity impact is critical for the design soft armor vests. Several types UHMWPE are available with different mechanical properties. However, no validated methodology has been published in literature to analyze influence stacking sequence combining materials maximize ballistic limit. In this work, a combined ex...

The mechanical properties of polyethylene (PE) materials are greatly influenced by their molecular structures, environmental temperature, and strain rate. In this study, static dynamic compression tests were performed on two semicrystalline PE materials—ultrahigh weight (UHMWPE) high-density (HDPE). stress–strain curves HDPE UHMWPE under uniaxial at temperatures −40–120 °C rates 0.001–5500 s−1 ...