ASTM-D2990 Standard Test Methods for Tensile, Compressive, and Flexural Creep and Creep-Rupture of Plastics

ASTM-D2990 - 2017 EDITION - CURRENT -- See the following: ASTM-D2648
Show Complete Document History

Document Center Inc. is an authorized dealer of ASTM standards.
The following bibliographic material is provided to assist you with your purchasing decision:

Standard Test Methods for Tensile, Compressive, and Flexural Creep and Creep-Rupture of Plastics
ORDER

Price:

$90.00        


Want this as a site license?

Changes from the previous issue

A redline edition is available for this document, with all changes visible. Ask Document Center Inc. for more information.

Scope

1.1 These test methods cover the determination of tensile and compressive creep and creep-rupture of plastics under specified environmental conditions (see 3.2).

1.2 In these test methods three-point loading, as described in Test Methods D790, is used for measurement of creep in flexure. However, four-point loading using the equipment and principles described in D6272 is also permitted as an option.

1.3 For measurements of creep-rupture, tension is the preferred stress mode because for some ductile plastics rupture does not occur in flexure or compression.

1.4 Test data obtained by these test methods are relevant and appropriate for use in engineering design.

1.5 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.

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 and health practices and determine the applicability of regulatory limitations prior to use. A specific warning statement is given in 6.8.2.

Note 1: This standard and ISO 899 Parts 1 and 2 address the same subject matter, but differ in technical content (and results cannot be directly compared between the two test methods). ISO 899 Part 1 addresses tensile creep and creep to rupture and ISO 899 Part 2 addresses flexural creep. Compressive creep is not addressed in ISO 899.

Significance and Use

5.1 Data from creep and creep-rupture tests are necessary to predict the creep modulus and strength of materials under long-term loads and to predict any dimensional changes that will potentially occur as a result of such loads.

5.2 Data from these test methods are suitable for use: (1) to compare materials, (2) in the design of fabricated parts, (3) to characterize plastics for long-term performance under constant load, and (4) under certain conditions, for specification purposes.

5.3 Before proceeding with this test method, reference shall be made to the specification of the material being tested. Any specimen preparation, conditioning, dimensions, and/or testing parameters covered in the material specification shall take precedence over those mentioned in this test method, except in cases where to do so would conflict with the purpose for conducting testing. If there are no material specifications, then the default conditions apply.

Keywords

creep; creep-rupture; plastics;; ICS Number Code 83.080.01 (Plast in general)

To find similar documents by ASTM Volume:

08.01 (Plastics (I): D256 - D3159)

08.02 (Plastics (II): D3222 - D5083)

To find similar documents by classification:

83.080.01 (Plastics in general)

This document comes with our free Notification Service, good for the life of the document.

This document is available in either Paper or PDF format.

 

Customers who bought this document also bought:

IPC-A-610
Acceptability of Electronic Assemblies (Hardcopy format)

ASTM-D4169
Standard Practice for Performance Testing of Shipping Containers and Systems

ISO-9001
Quality management systems - Requirements

Document Number

ASTM-D2990-17

Revision Level

2017 EDITION

Status

Current

Modification Type

Revision

Publication Date

April 1, 2017

Document Type

Test Method

Page Count

21 pages

Committee Number

D20.10