A Study of Contact Temperature Due to Frictional Heating of UHMWPE

Imado, Keiji; Miura, Atsuyoshi; Nagatoshi, Masuji; Kido, Yukihito; Miyagawa, Hiroomi; Higaki, Hidehiko

doi:10.1023/b:tril.0000015202.29861.8d

Cited by 16 publications

(6 citation statements)

References 2 publications

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“…The results show that under the same contact pair, higher contact stress may lead to higher frictional heat flux and increase in temperature. This phenomenon is consistent with the studies of Imado et al (2004). In their friction experiments, the increase in temperature corresponding to the contact stress of 12.6 MPa is 9°C, and the increase in temperature corresponding to the contact stress of 8.3 MPa is only 3°C.…”

Section: Simulation Results Of Temperature Fieldsupporting

confidence: 91%

“…It is well demonstrated that the heat distribution coefficient of the hard material acetabular cup is greater than that of UHMWPE. The calculated heat distribution coefficient of UHMWPE was well verified in the study of Imado et al (2004). Most of the heat in the MOP and COP contact pairs is dissipated in the femoral head, and only a small part of the heat is flowing into the inside of the acetabular cup.…”

Section: Analysis Of Frictional Heat Resultsmentioning

confidence: 57%

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Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

Fang

Xin

et al. 2021

ILT

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Purpose The purpose of this paper is to systematically study the dynamic contact stress, frictional heat and temperature field of femoral head-on-acetabular cup contact pairs in a gait cycle. Design/methodology/approach In this paper, four common femoral head-on-acetabular cup contact pairs are used as the research objects, mathematical calculations and finite element simulations are adopted. The contact model of hip joint head and acetabular cup was established by finite element simulation to analyze the stress and temperature distribution of the contact interface. Findings The results show that the contact stress of the head-on-cup interface is inversely proportional to the contact area; high contact stress directly leads to greater frictional heat. However, hip joints with metal-on-polyethylene or ceramic-on-polyethylene paired interfaces have lower frictional heat and show a significant temperature rise in one gait cycle, which may be related to the material properties of the acetabular cup. Originality/value Previous studies about calculating the interface frictional heat always ignore the dynamic change process in the contact load and the contact area. This study considered the dynamic changes of the contact stress and area of the femoral head-on-acetabular cup interface, and four common contact pairs were systematically analyzed.

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Section: Simulation Results Of Temperature Fieldsupporting

confidence: 91%

Section: Analysis Of Frictional Heat Resultsmentioning

confidence: 57%

Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

Fang

Xin

et al. 2021

ILT

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“…The bulk lubricant temperature was higher in the all-polymer knee than in the conventional implant; this elevated temperature could be attributed to frictional heating 37 due to the anticipated higher friction in this material combination 8 and poor dissipation of heat due to the low thermal conductivity of the polymers. 38 Although higher friction bearing couples have exhibited frictional heating in vivo, 39 the clinical relevance of the elevated temperatures measured in our tests is unknown. The continuous running of the simulator may have accentuated the frictional heating 40 and led to a test artefact 41 by creating differing environmental test conditions for the different materials.…”

Section: Discussionmentioning

confidence: 90%

PEEK-OPTIMA^™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study

Cowie

Briscoe²,

Fisher

et al. 2016

Proc Inst Mech Eng H

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PEEK-OPTIMA™ (Invibio Ltd, UK) has been considered as an alternative joint arthroplasty bearing material due to its favourable mechanical properties and the biocompatibility of its wear debris. In this study, the potential to use injection moulded PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of a total knee replacement was investigated in terms of its wear performance. Experimental wear simulation of three cobalt chrome and three PEEK-OPTIMA™ femoral components articulating against all-polyethylene tibial components was carried out under two kinematic conditions: 3 million cycles under intermediate kinematics (maximum anterior-posterior displacement of 5 mm) followed by 3 million cycles under high kinematic conditions (anterior-posterior displacement 10 mm). The wear of the GUR1020 ultra-high-molecular-weight polyethylene tibial components was assessed by gravimetric analysis; for both material combinations under each kinematic condition, the mean wear rates were low, that is, below 5 mm3/million cycles. Specifically, under intermediate kinematic conditions, the wear rate of the ultra-high-molecular-weight polyethylene tibial components was 0.96 ± 2.26 mm3/million cycles and 2.44 ± 0.78 mm3/million cycle against cobalt chrome and PEEK-OPTIMA™ implants, respectively (p = 0.06); under high kinematic conditions, the wear rates were 2.23 ± 1.85 mm3/million cycles and 4.44 ± 2.35 mm3/million cycles, respectively (p = 0.03). Following wear simulation, scratches were apparent on the surface of the PEEK-OPTIMA™ femoral components. The surface topography of the femoral components was assessed using contacting profilometry and showed a statistically significant increase in measured surface roughness of the PEEK-OPTIMA™ femoral components compared to the cobalt chrome implants. However, this did not appear to influence the wear rate, which remained linear over the duration of the study. These preliminary findings showed that PEEK-OPTIMA™ gives promise as an alternative bearing material to cobalt chrome alloy in the femoral component of a total knee replacement with respect to wear performance.

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“…The maximum pressure according the hertzian equation is 14.5 MPa along with a contact width of 1.35 mm at peak load. A modulus of 200.000 MPa for CoCrMo and 600 MPa for UHMWPE and a Poisson ratio of 0.46 and 0.3 for the CoCrMo and the polyethylene, respectively, were used for the calculation [31,32].…”

Section: Self-made Tribological Testing Devicementioning

confidence: 99%

Molecular Deformation Mechanisms in UHMWPE During Tribological Loading in Artificial Joints

Galetz

Glatzel

2010

Tribol Lett

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No clear picture of the deformation and wear mechanisms of Ultra High Molecular Weight Polyethylene (UHMWPE) in artificial knee joints exists up to today. Tribological tests were conducted under relevant loads and the worn samples were extensively studied by XRD, DSC, Raman, and SEM. It was shown that stresses close to the surface in areas where high relative velocity in combination with high normal loads are applied are most effective in changing the microstructure and therefore most detrimental to produce wear particles, while in the depth the same deformed structure as under unidirectional cyclic loading is found. A model was proposed which reflects the deformation at different zones in the depth of a tribologically loaded UHMWPE sample. This model shows amazing analogy to the orientation of collagen fibrils in natural cartilage.

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A Study of Contact Temperature Due to Frictional Heating of UHMWPE

Cited by 16 publications

References 2 publications

Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

PEEK-OPTIMA^™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study

Molecular Deformation Mechanisms in UHMWPE During Tribological Loading in Artificial Joints

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A Study of Contact Temperature Due to Frictional Heating of UHMWPE

Cited by 16 publications

References 2 publications

Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

Dynamic contact stress and frictional heat analysis of femoral head-on-acetabular cup interface based on calculation and simulation methods

PEEK-OPTIMA™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study

Molecular Deformation Mechanisms in UHMWPE During Tribological Loading in Artificial Joints

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Product

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PEEK-OPTIMA^™ as an alternative to cobalt chrome in the femoral component of total knee replacement: A preliminary study