ASTM D5024-01

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

SCOPE
1.1 This test method covers the use of dynamic mechanical instrumentation for gathering and reporting the viscoelastic properties of thermoplastic and thermosetting resins and composite systems in the form of cylindrical specimens molded directly or cut from sheets, plates, or molded shapes. The compression data generated may be 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 means for determining the modulus as a function of temperature of a wide variety of plastics materials using nonresonant forced-vibration techniques, as outlined in Practice D 4065. Plots of the elastic (storage), loss (viscous) and complex moduli 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 Apparent discrepancies may arise in results obtained under differing experimental conditions. These apparent differences from results observed in another study can usually be reconciled, without changing the observed data, by reporting in full (as described in this test method) the conditions under which the data were obtained.
1.5 Due to possible instrumentation compliance, the data generated are intended to indicate relative and not necessarily absolute property values.
1.6 Test data obtained by this test method are relevant and appropriate for use in engineering design.
1.7 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.8 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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—There is no similar or equivalent ISO standard.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 83.080.01 - Plastics in general
• Technical Committee: D20 - Plastics
• Drafting Committee: D20.10 - Mechanical Properties

Relations

• Referred By: ASTM D4065-20 - Standard Practice for Plastics: Dynamic Mechanical Properties: Determination and Report of Procedures
• Effective Date: 10-Sep-2001
• Referred By: ASTM D6382/D6382M-99(2022) - Standard Practice for Dynamic Mechanical Analysis and Thermogravimetry of Roofing and Waterproofing Membrane Material
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D5024–01
Standard Test Method for
1
Plastics: Dynamic Mechanical Properties: In Compression
This standard is issued under the fixed designation D 5024; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope* 2. Referenced Documents
2
1.1 This test method covers the use of dynamic mechanical 2.1 ASTM Standards:
instrumentation for gathering and reporting the viscoelastic D 618 Practice for Conditioning Plastics for Testing
properties of thermoplastic and thermosetting resins and com- D 4000 Classification System for Specifying Plastic Mate-
posite systems in the form of cylindrical specimens molded rials
directly or cut from sheets, plates, or molded shapes. The D 4065 Practice for Determining and Reporting Dynamic
compression data generated may be used to identify the Mechanical Properties of Plastics
thermomechanical properties of a plastics material or compo- D 4092 Terminology Relating to Dynamic Mechanical
sition using a variety of dynamic mechanical instruments. Measurements on Plastics
1.2 This test method is intended to provide means for
3. Terminology
determiningthemodulusasafunctionoftemperatureofawide
varietyofplasticsmaterialsusingnonresonantforced-vibration 3.1 Definitions: For definitions applicable to this test
method refer to Terminology D 4092.
techniques, as outlined in Practice D 4065. Plots of the elastic
(storage), loss (viscous) and complex moduli and tan delta as a
4. Summary of Test Method
function of frequency, time, or temperature are indicative of
4.1 This test method covers the determination of the com-
significant transitions in the thermomechanical performance of
pressive modulus of both solid and cellular plastics using
the polymeric material system.
dynamic mechanical techniques.Atest specimen of cylindrical
1.3 Thistestmethodisvalidforawiderangeoffrequencies,
cross section is tested in dynamic compression. The specimen
typically from 0.01 to 100 Hz.
is gripped between two flat plates or parallel disks. The
1.4 Apparent discrepancies may arise in results obtained
specimen of known geometry is placed in mechanical linear
under differing experimental conditions. These apparent differ-
tensile displacement at fixed frequencies at either isothermal
ences from results observed in another study can usually be
conditions or with a linear temperature increase. The elastic
reconciled, without changing the observed data, by reporting in
moduli or loss moduli, or both, of the polymeric material
full (as described in this test method) the conditions under
system are measured in compression.
which the data were obtained.
1.5 Due to possible instrumentation compliance, the data
NOTE 2—The particular method for measurement of the elastic and loss
generated are intended to indicate relative and not necessarily
moduli and tan delta depends upon the individual instrument’s operating
absolute property values.
principles.
1.6 Test data obtained by this test method are relevant and
5. Significance and Use
appropriate for use in engineering design.
1.7 The values stated in SI units are to be regarded as the 5.1 This test method provides a simple means of character-
standard. The values given in parentheses are for information izing the thermomechanical behavior of plastics materials
only. using very small amounts of material. The data obtained may
1.8 This standard does not purport to address all of the be used for quality control, research and development, and
safety concerns, if any, associated with its use. It is the establishment of optimum processing conditions.
responsibility of the user of this standard to establish appro- 5.2 Dynamic mechanical testing provides a sensitive
priate safety and health practices and determine the applica- method for determining thermomechanical characteristics by
bility of regulatory limitations prior to use. measuring the elastic and loss moduli as a function of
frequency, temperature, or time. Plots of moduli and tan delta
NOTE 1—There is no similar or equivalent ISO standard.
1 2
This test method is under the jurisdiction ofASTM Committee D20 on Plastics For referenced ASTM standards, visit the ASTM website, www.astm.org, or
and is the direct responsibility of Subcommittee D20.10 on Mechanical Properties. contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
Current edition approved September 10, 2001. Published November 2001. Standards volume information, refer to the standard’s Document Summary page on
Originally published as D 5024 – 89. Last previous edition D 5024 – 95a. the ASTM website.
*A Summary of Changes section
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