ASTM D 4093 : 19951
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Standard Test Method for Photoelastic Measurements of Birefringence and Residual Strains in Transparent or Translucent Plastic Materials
Hardcopy , PDF
11-11-2014
English
01-01-2001
Important note : Users cannot be edited or removed once added to your Multi user PDF.CONTAINED IN VOL. 08.02, 2015 Describes the direction of principal strains, varepsilon[1] and varepsilon[2], and the photoelastic retardation, delta, using a compensator, for the purpose of analyzing strains in transparent of translucent plastic materials.
| Committee |
D 20
|
| DocumentType |
Test Method
|
| Pages |
10
|
| ProductNote |
Reconfirmed 1995
|
| PublisherName |
American Society for Testing and Materials
|
| Status |
Superseded
|
| SupersededBy |
1.1 This test method covers measurements of direction of principal strains, E 1 and E2 , and the photoelastic retardation, [delta], using a compensator, for the purpose of analyzing strains in transparent or translucent plastic materials. The test method can be used to determine the difference of principal strains or normal strains when the principal directions do not change substantially within the light path.
1.2 In addition to the method using a compensator described in this test method, other methods are in use, such as the goniometric method (using rotation of the analyzer) mostly applied for measuring small retardation, and expressing it as a fraction of a wavelength. Nonvisual methods employing photoelectric conversion and eliminating the human judgement factor are also possible.
1.3 Test data obtained by this test method is relevant and appropriate for use in engineering design.
1.4 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.
| ASTM D 618 : 2013 : REDLINE | Standard Practice for Conditioning Plastics for Testing |
| ASTM D 638 : 2014 : REDLINE | Standard Test Method for Tensile Properties of Plastics |
| ASTM D 4000 : 2016 : REDLINE | Standard Classification System for Specifying Plastic Materials |
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