ASTM-D4476 Standard Test Method for Flexural Properties of Fiber Reinforced Pultruded Plastic Rods (Withdrawn 2022)

ASTM-D4476 - 2014 EDITION - CANCELLED
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Standard Test Method for Flexural Properties of Fiber Reinforced Pultruded Plastic Rods (Withdrawn 2022)

Scope

1.1 This test method covers the determination of the flexural properties of fiber-reinforced pultruded plastic rods. The specimen is a rod with a semicircular cross section, molded or cut from lengths of pultruded rods (see Fig. 1). This test method is designed for rods with a diameter of 1/2 in. or greater.

Note 1There is no known ISO equivalent to this standard.
 Cross Section of Test Specimen
FIG. 1 Cross Section of Test Specimen

1.2 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.

1.3 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.

Significance and Use

5.1 Flexural properties determined by this test method are especially useful for quality control and specification purposes.

5.2 The maximum axial fiber stresses occur on a line under the loading nose. The use of the semicircular cross section eliminates premature compression shear that has been noted in three-point flexure tests on full-round rods.

5.3 Flexural properties may vary with specimen depth, temperature, atmospheric conditions, and differences in rate of straining.

5.4 Before proceeding with this test method, reference should be made to the specification of the material being tested. Any test specimen preparation, conditioning, dimensions, or testing parameters, or combination thereof, covered in the materials specification shall take precedence over those mentioned in this test method. If there are no material specifications, then the default conditions apply.

Keywords

flexural properties; plastic rods; pultruded products; thermosetting plastics

To find similar documents by ASTM Volume:

08.02 (Plastics (II): D3222 - D5083)

08.03 (Plastics (III): D5117 - latest; Reinforced Plastic Piping Systems and Chemical Equipment; Plastic Building Products)

To find similar documents by classification:

83.120 (Reinforced plastics Materials for the reinforcement of plastics, see 59.100)

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Document Number

ASTM-D4476/D4476M-14

Revision Level

2014 EDITION

Status

Cancelled

Modification Type

Withdrawn

Publication Date

June 1, 2014

Document Type

Test Method

Page Count

5 pages

Committee Number

D20.18