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Description of ASTM-E855 2013ASTM E855 - 08(2013)Standard Test Methods for Bend Testing of Metallic Flat Materials for Spring Applications Involving Static LoadingActive Standard ASTM E855 | Developed by Subcommittee: E28.02 Book of Standards Volume: 03.01 ASTM E855Significance and Use 4.1 Measurements of bending strength and modulus of elasticity in bending should be made for materials whose principal stressing mode is bending. For many materials, the tensile and compressive moduli are somewhat different. Since the bending modulus is a combination of the tensile and compressive moduli, it is often different from each of them. 4.2 Precise measurements of the modulus of elasticity in bending and bending strength require due regard for numerous variables that may affect their determination. These include ( 1 ) characteristics such as specimen orientation with respect to the rolling direction, grain size, residual stresses, previous strain history, dimensions and specimen preparation, orientation of deformed grains relative to the direction of the normal stress; and ( 2 ) test conditions, such as tem- perature, temperature variations, condition of the test equipment and adherence to the recommended test procedure. 1. Scope 1.1 This standard describes three test methods 2 for determining the modulus of elasticity in bending and the bending strength of metallic strips or sheets intended for the use in flat springs: 1.1.1 Test Method A a cantilever beam, 1.1.2 Test Method B a three-point loaded beam (that is, a beam resting on two supports and centrally loaded), and 1.1.3 Test Method C a four-point loaded beam (that is, a beam resting on two supports and loaded at two points equally spaced from each support). 1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered 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.
ASTM Standards E4 Practices for Force Verification of Testing Machines E6 Terminology Relating to Methods of Mechanical Testing E111 Test Method for Youngs Modulus, Tangent Modulus, and Chord Modulus E177 Practice for Use of the Terms Precision and Bias in ASTM Test Methods E691 Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method Keywords ICS Code ICS Number Code 21.160 (Springs) DOI: 10.1520/E0855-08R13 ASTM International is a member of CrossRef. ASTM E855This 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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