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Testing Solutions » By Standard » ISO » ISO 14879

ISO 14879 Knee Testing: Fatigue of Tibial Trays

Materials

  • Biomedical

Business Sector

  • Biomedical/Medical/Healthcare

Test Types

  • Compression
  • High Cycle Fatigue

Specimen

  • Irregular
  • Implant

Standard

  • ISO 14879
Contact usView Accessories Catalog
  • Description
  • Literature

Fatigue fracture of knee tibial trays has been one of the most commonly reported failure mechanisms of Total Knee Replacements (TKR). It is caused by loss of underlying bone support resulting from biological reactions, such as wear-induced osteolysis. Under these conditions, the tibial tray becomes mechanically unstable, and cyclic loading imparted by normal walking causes fatigue cracks, ultimately leading to catastrophic failure.

The ISO 14879-1 standard 'Determination of Endurance Properties of Knee Tibial Trays' provides a common set of test parameters for determining and validating the fatigue properties of different tibial tray designs. ElectroPuls™ All-Electric Dynamic Test Instrument will assist designers, manufacturers and researchers through the product life-cycle process, from deriving fundamental material properties, such as resistance to fatigue crack propagation, to testing the entire tibial tray and beyond.

We use a clamping fixture to secure one half of the tibial tray, simulating a fully supported condyle. The other unsupported condyle is then subjected to physiologically representative loading. By using our unique Dynacell™ load cell, dynamic inertial errors (such as those caused by the fixturing and from hydro-dynamics that result when testing in an environmental bath) can be removed, allowing for a more accurate measurement of load being applied to the specimen.

We recommend that you review ISO 14879-1 to fully understand its requirements.

ElectroPuls™ Electrodynamic Test Instruments

ElectroPuls instruments are state-of-the-art electrodynamic test systems for dynamic and static tests on materials & components. Powered entirely from a single-phase mains supply, they feature the latest in testing technology and a host of other user-oriented features.

  • Products
  • 4/24/2013
  • 1.7 MB

ElectroPuls™ E1000 All-Electric Dynamic Test Instrument

The ElectroPulsTM E1000 is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, DynacellTM load cell, Console software, and the very latest in testing technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups, and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).

  • Products
  • 3/3/2017
  • 0.7 MB

ElectroPuls™ E3000 All-Electric Dynamic Test Instrument

The ElectroPulsTM E3000 is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, DynacellTM load cell, Console software, and the very latest in testing technology–hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).

  • Products
  • 3/3/2017
  • 0.7 MB

ElectroPuls™ E3000 Linear-Torsion All-Electric Dynamic Test Instrument

The ElectroPulsTM E3000 Linear-Torsion is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, bi-axial DynacellTM load cell, Console software, and the very latest in testing technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).

  • Products
  • 3/3/2017
  • 0.7 MB

ElectroPuls E10000 All-Electric Dynamic Test Instrument

The ElectroPulsTM E10000 is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, DynacellTM load cell, Console software, and the very latest in testing technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).

  • Products
  • 3/3/2017
  • 0.7 MB

E10000 Combined POD

The ElectroPulsTM E10000 is a state-of-the-art, all-electric test instrument designed for dynamic and static testing on a wide range of materials and components. It includes Instron® advanced digital control electronics, bi-axial DynacellTM load cell, Console software, and the very latest in testing technology – hassle-free tuning based on specimen stiffness, electrically operated crosshead lifts, a T-slot table for flexible test set ups and a host of other user-orientated features. Powered from a single-phase supply it requires no additional utilities for basic machine operation (for example, pneumatic air, hydraulics, or water).

  • Products
  • 7/11/2019
  • 0.8 MB

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