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Description of ASTM-F2433 2009ASTM F2433 - 05(2009)Standard Test Method for Determining Thermoplastic Pipe Wall StiffnessActive Standard ASTM F2433 | Developed by Subcommittee: F17.40 Book of Standards Volume: 08.04 ASTM F2433Significance and Use The performance under bending and compression load of a thermoplastic plastic pipe wall design obtained by this method can be used for the following: To determine the stiffness of the pipe wall section. This is a function of the pipe dimensions, the wall design, the arc length tested, and the physical properties of the material of which the pipe is made. To compare the characteristics of various thermoplastic pipe wall designs. To compare the characteristics of various plastics in pipe form. To study the interrelations of dimensions, materials, and deformation properties of thermoplastic pipe designs. To measure the deformation and load-resistance at any of several significant events which may occur during the test. To provide a reasonable quality control/quality assurance test for very large diameter plastic pipes. The time-dependent pipe wall stiffness of a thermoplastic pipe obtained by this test method may used for the following: To predict the residual stiffness of the pipe wall in bending and compression at all times after initial loading. For purposes of design, to determine a modulus of relaxation under sustained loads. To quantify the influence of material formulations of thermoplastics on the modulus of relaxation. To study the influence of geometric patterns of wall profiles on the modulus of relaxation. The time-independent reduction of wall thickness at springline may be used for the following: For pipe wall stiffness, to quantify the efficiency of all wall profiles of any material composition and a given geometry with that of a solid uniform thickness wall. 1. Scope 1.1 This test method covers the determination of the load-deflection behavior of thermoplastic pipe wall sections under parallel plate loading conditions. Note 1These are not full pipe section tests, but pipe wall segment tests. The results of these tests will be different from pipe stiffness tests per Test Method D2412 , although they may be proportional. This test provides quite different information, including , stress relaxation under constant strain, and comparisons of the function and stiffness of different pipe wall designs or materials. 1.2 This test method covers a loading test for determining the wall stiffness of a thermoplastic-pipe wall under a combined load of bending and compression. Changes in pipe wall profile geometry under load may also be determined. 1.3 This test method covers thermoplastic pipe. 1.4 The characteristics determined by this test method are wall stiffness and changes in profile wall dimensions at specific deformations. 1.5 The characteristics determined by this test method are wall stiffness, profile wall efficiency, and for some wall elements stability at specific Strain levels. 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 The text of this specification references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the specification. 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.
ASTM Standards D618 Practice for Conditioning Plastics for Testing D695 Test Method for Compressive Properties of Rigid Plastics D883 Terminology Relating to Plastics D1600 Terminology for Abbreviated Terms Relating to Plastics D2122 Test Method for Determining Dimensions of Thermoplastic Pipe and Fittings D2412 Test Method for Determination of External Loading Characteristics of Plastic Pipe by Parallel-Plate Loading F412 Terminology Relating to Plastic Piping Systems AASHTO Standards M294 Standard Specification for Corrugated Polyethylene Pipe, 300- to 1500-mm DiameterKeywords buckling; modulus of relaxation; moment of inertia; pipe stiffness; residual pipe stiffness; Moment of inertia; Thermoplastic pipe/tube/fittings; ICS Code ICS Number Code 23.040.20 (Plastic pipes) DOI: 10.1520/F2433-05R09 ASTM International is a member of CrossRef. ASTM F2433This book also exists in the following packages...Subscription InformationMADCAD.com ASTM Standards subscriptions are annual and access is unlimited concurrency based (number of people that can access the subscription at any given time) from single office location. For pricing on multiple office location ASTM Standards Subscriptions, please contact us at info@madcad.com or +1 800.798.9296.
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About ASTMASTM International, formerly known as the American Society for Testing and Materials (ASTM), is a globally recognized leader in the development and delivery of international voluntary consensus standards. Today, some 12,000 ASTM standards are used around the world to improve product quality, enhance safety, facilitate market access and trade, and build consumer confidence. ASTM’s leadership in international standards development is driven by the contributions of its members: more than 30,000 of the world’s top technical experts and business professionals representing 150 countries. Working in an open and transparent process and using ASTM’s advanced electronic infrastructure, ASTM members deliver the test methods, specifications, guides, and practices that support industries and governments worldwide. |
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