Uniaxial and biaxial ratcheting behavior of ultra-high molecular weight polyethylene

Gao, Hong; Wang, Jianhai; Li, Fan; Gao, Lilan; Zhang, Zhe

doi:10.1016/j.msec.2018.04.007

Cited by 17 publications

(9 citation statements)

References 28 publications

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“…The FCG rate under circular and square nonproportional loading paths with 90° phase difference is between that of uniaxial and proportional loading paths. The FCG rate under square path is slightly higher than that under circular path, and it is consistent with the research of biaxial ratcheting behavior of UHMWPE by Gao et al ()) and the in‐plane biaxial cyclic mechanical behavior of proton exchange membrane by Lin et al (). From the loading path diagrams (Figure a–c), it can be found that the circular path is completely covered by the square path, so the difference of FCG rates under square and circular paths can also be explained from the perspective of energy consumption.…”

Section: Discussionsupporting

confidence: 90%

“…Furthermore, it is worth noting that current studies on the FCG behavior of UHMWPE and its modified materials were mostly carried out under uniaxial loading, while the FCG under biaxial loading has been rarely reported. UHMWPE artificial joint component is always subjected to complex loadings such as tension, compression, bending, and shear stress during its service (Gao, Wang, Li, Gao, & Zhang, ). The materials may have some microdefects in the process of machining.…”

Section: Introductionmentioning

confidence: 99%

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Biaxial fatigue crack propagation behavior of ultrahigh molecular weight polyethylene reinforced by carbon nanofibers and hydroxyapatite

et al. 2019

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Ultrahigh molecular weight polyethylene (UHMWPE) artificial joint has remained the preferred polymer component in total joint replacement surgery. However, more and more concerns have been raised about the failure of UHMWPE components due to the initiation and propagation of cracks at the notches with fixed functions. For this reason, biaxial fatigue crack growth (FCG) experiments of UHMWPE reinforced by carbon nanofibers (CNF) and hydroxyapatite (HA) were carried out using elastic–plastic fracture mechanics theory. The FCG resistance of UHMWPE, UHMWPE/CNF, and UHMWPE/HA was compared, and the effects of stress ratio (R) value and phase difference on FCG rate were investigated. At the same time, the influence of loading path was considered, and the corresponding crack path was analyzed. Results suggest that UHMWPE/CNF has better FCG resistance and the FCG rate increases with the increase of R value and the existence of 180° phase difference. In addition, crack bifurcation behavior is not observed under nonproportional loading conditions. The findings in this study will provide experimental validation and data support for better clinical application of UHMWPE‐modified materials.

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Section: Discussionsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Biaxial fatigue crack propagation behavior of ultrahigh molecular weight polyethylene reinforced by carbon nanofibers and hydroxyapatite

et al. 2019

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“…Halama et al 18 investigated the effects of average stress and stress amplitude on the steady‐state ratcheting effect of ST52 steel material and proposed a new cyclic shaping model, which can accurately describe its ratcheting behavior and cyclic hardening behavior under proportional and nonproportional loading. Gao et al 19 studied the uniaxial and biaxial ratcheting behavior of ultra‐high molecular weight polyethylene (UHMW‐PE) and found that uniaxial loading paths produced the largest ratcheting strains and ratcheting strain and its rate were minimized by proportional loading path. Chen and Chen 20 and Khutia et al 21 carried out experimental study for 304 stainless steel under in‐plane biaxial cyclic loading.…”

Section: Introductionmentioning

confidence: 99%

In‐plane biaxial ratcheting effect and low‐cycle fatigue behavior of CP‐Ti based on DIC method

Zhao

Zhou

et al. 2022

Fatigue Fract Eng Mat Struct

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In-plane biaxial fatigue tests of commercial pure titanium (CP-Ti) were performed to investigate the effects of load ratio and phase shift on fatigue and ratcheting behavior. The results show that with the decrease of load ratio or the increase of phase shift, biaxial ratcheting strain effect is more significant, leading to the deterioration of fatigue resistance. Analysis of the crack morphology and fracture characteristic reveals that the crack propagation path becomes complex and the fracture morphology changes due to the enhanced non-proportional hardening effect. Finally, current multiaxial life prediction models are evaluated to compare the applicability in the biaxial fatigue life prediction.

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“…In general, additional design procedures have to be employed to guarantee the resistance to creep [12] and ratcheting [13,14].…”

Section: Introductionmentioning

confidence: 99%

“…Some research studies are available on the ratcheting behavior of bulk UHMWPE under uniaxial [13,[17][18][19] or biaxial [14,[20][21][22] loading, considering also the effect of additives [23,24] in particular for biomechanical applications, but to the authors' knowledge, there are no studies in the scientific literature on the ratcheting behavior of UHMWPE fibers, yarns, or strips.…”

Section: Introductionmentioning

confidence: 99%

Ultra-High-Molecular-Weight Polyethylene Rods as an Effective Design Solution for the Suspensions of a Cruiser-Class Solar Vehicle

Minak

Brugo

Fragassa

2019

International Journal of Polymer Science

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Ultra-high-molecular-weight polyethylene (UHMWPE) is a subgroup of the thermoplastic polyethylene characterized by extremely long chains and, as result, in a very tough and resistant material. Due to remarkable specific mechanical properties, its use is gradually being extended to multiple fields of application. This study describes, perhaps for the first time, how the UHMWPE can represent a valid material solution in the design and optimization of suspensions for automotive use, especially in the case of extremely lightweight vehicles, such as solar cars. In particular, in this design study, UHMWPE rods permitted to assure specific kinematic trajectories, functionalities, and overall performance in an exceptionally light suspension systems, developed for an innovative multioccupant solar vehicle. These rods reduced the weight by 88% with respect to the classic design solutions with similar functions, offering, at the same time, high stiffness and accuracy in the movements. An experimental campaign was conducted to evaluate the ratcheting behaviour and other mechanical properties needed for a proper design and use.

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Uniaxial and biaxial ratcheting behavior of ultra-high molecular weight polyethylene

Cited by 17 publications

References 28 publications

Biaxial fatigue crack propagation behavior of ultrahigh molecular weight polyethylene reinforced by carbon nanofibers and hydroxyapatite

Biaxial fatigue crack propagation behavior of ultrahigh molecular weight polyethylene reinforced by carbon nanofibers and hydroxyapatite

In‐plane biaxial ratcheting effect and low‐cycle fatigue behavior of CP‐Ti based on DIC method

Ultra-High-Molecular-Weight Polyethylene Rods as an Effective Design Solution for the Suspensions of a Cruiser-Class Solar Vehicle

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