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Significance and Use
5.1 This test method describes a uniaxial, constant amplitude, fully reversed fatigue test to characterize the fatigue performance of a uniform cylindrical waisted specimen manufactured from acrylic bone cement.
5.2 This test method considers two approaches to evaluating the fatigue performance of bone cement:
5.2.1 Testing is conducted at three stress levels to characterize the general fatigue behavior of a cement over a range of stresses. The stress level and resultant cycles to failure of the specimens can be plotted on an S-N diagram.
5.2.2 Another approach is to determine the fatigue life of a particular cement. The fatigue life for orthopaedic bone cement is to be determined up to 5 million (5 × 106) cycles.
5.3 This test method does not define or suggest required levels of performance of bone cement. This fatigue test method is not intended to represent the clinical use of orthopaedic bone cement, but rather to characterize the material using standard and well-established methods. The user is cautioned to consider the appropriateness of this test method in view of the material being tested and its potential application.
5.4 It is widely reported that multiple clinical factors affect the fatigue performance of orthopaedic bone cement; however, the actual mechanisms involves multiple factors. Clinical factors which may affect the performance of bone cement include: temperature and humidity, mixing method, time of application, surgical technique, bone preparation, implant design, anatomical site, and patient factors, among others. This test method does not specifically address all of these clinical factors. The test method can be used to compare different acrylic bone cement formulations and products and different mixing methods and environments (that is, mixing temperature, vacuum, centrifugation, and so forth).
1.1 This test method describes test procedures for evaluating the constant amplitude, uniaxial, tension-compression uniform fatigue performance of acrylic bone cement materials.
1.2 This test method is relevant to orthopedic bone cements based on acrylic resins, as specified in Specification and ISO 16402. The procedures in this test method may or may not apply to other surgical cement materials.
1.3 It is not the intention of this test method to define levels of performance of these materials. It is not the intention of this test method to directly simulate the clinical use of these materials, but rather to allow for comparison between acrylic bone cements to evaluate fatigue behavior under specified conditions.
1.4 A rationale is given in .
1.5 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.6 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.7 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
D412 Test Methods for Vulcanized Rubber and Thermoplastic ElastomersTension
D792 Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
D1084 Test Methods for Viscosity of Adhesives
D2090 Test Method for Clarity and Cleanness of Paint and Ink Liquids
D2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer
D2240 Test Method for Rubber PropertyDurometer Hardness
E466 Practice for Conducting Force Controlled Constant Amplitude Axial Fatigue Tests of Metallic Materials
E467 Practice for Verification of Constant Amplitude Dynamic Forces in an Axial Fatigue Testing System
E1823 Terminology Relating to Fatigue and Fracture Testing
F451 Specification for Acrylic Bone Cement
ISO StandardISO 16402 Flexural Fatigue Testing of Acrylic Resin Cements Used in Orthopedics Available from American National Standards Institute (ANSI), 25 W. 43rd St., 4th Floor, New York, NY 10036, http://www.ansi.org.
ICS Number Code 91.100.10 (Cement. Gypsum. Lime. Mortar)
UNSPSC Code 42295466(Surgical bone cement)
|Link to Active (This link will always route to the current Active version of the standard.)|
ASTM F2118-14(2020), Standard Test Method for Constant Amplitude of Force Controlled Fatigue Testing of Acrylic Bone Cement Materials, ASTM International, West Conshohocken, PA, 2020, www.astm.orgBack to Top