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Full Description

1.1 This test method outlines the use of dynamic mechanical instrumentation for determining and reporting the viscoelastic properties of thermoplastic and thermosetting resins as well as composite systems in the form of cylindrical specimens molded directly or cut from sheets, plates, or molded shapes. The compression data generated is used to identify the thermomechanical properties of a plastics material or composition using a variety of dynamic mechanical instruments.
1.2 This test method is intended to provide a means for determining the thermomechanical properties (as a function of a number of viscoelastic variables) for a wide variety of plastic materials using nonresonant, forced-vibration techniques as outlined in Practice D4065. Plots of the elastic (storage) modulus, loss (viscous) modulus, complex modulus, and tan delta as a function of frequency, time, or temperature are indicative of significant transitions in the thermomechanical performance of the polymeric material system.
1.3 This test method is valid for a wide range of frequencies, typically from 0.01 to 100 Hz.
1.4 Due to possible instrumentation compliance, the data generated are intended to indicate relative and not necessarily absolute property values.
1.5 Test data obtained by this test method are relevant and appropriate for use in engineering design.
1.6 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.7 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.
Note 1: There is no known ISO equivalent to this standard.
1.8 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.
 

Document History

  1. ASTM D5024-23

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    Standard Test Method for Plastics: Dynamic Mechanical Properties: In Compression

    • Most Recent
  2. ASTM D5024-15


    Standard Test Method for Plastics: Dynamic Mechanical Properties: In Compression

    • Historical Version
  3. ASTM D5024-07


    Standard Test Method for Plastics: Dynamic Mechanical Properties: In Compression

    • Historical Version
  4. ASTM D5024-01


    Standard Test Method for Plastics: Dynamic Mechanical Properties: In Compression

    • Historical Version
  5. ASTM D5024-95a


    Standard Test Method for Plastics: Dynamic Mechanical Properties: In Compression

    • Historical Version