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ASTM E143-13

Standard Test Method for Shear Modulus at Room Temperature

Automaticky přeložený název:

Standardní zkušební metoda pro modul pružnosti ve smyku při pokojové teplotě

NORMA vydána dne 1.11.2013

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Provedení	PDF - okamžité stažení - 2 005.90 Kč Tištěné - 2 005.90 Kč
Dostupnost	SKLADEM
Cena	2005.90 Kč bez DPH
2 005.90 Kč

Informace o normě:

Označení normy: ASTM E143-13
Poznámka: NEPLATNÁ
Datum vydání normy: 1.11.2013
Kód zboží: NS-41736
Počet stran: 5
Přibližná hmotnost: 15 g (0.03 liber)
Země: Americká technická norma
Kategorie: Technické normy ASTM

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Kategorie - podobné normy:

Mechanické zkoušení kovů

Anotace textu normy ASTM E143-13 :

Keywords:

shear modulus, stress-strain diagram, torque-twist diagram, ICS Number Code 77.040.10 (Mechanical testing of metals)

Doplňující informace

Significance and Use

5.1 Shear modulus is a material property useful in calculating compliance of structural materials in torsion provided they follow Hooke's law, that is, the angle of twist is proportional to the applied torque. Examples of the use of shear modulus are in the design of rotating shafts and helical compression springs.

5.2 The procedural steps and precision of the apparatus and the test specimens should be appropriate to the shape and the material type, since the method applies to a wide variety of materials and sizes.

5.3 Precise determination of shear modulus depends on the numerous variables that may affect such determinations.

5.3.1 These factors include characteristics of the specimen such as residual stress, concentricity, wall thickness in the case of tubes, deviation from nominal value, previous strain history and specimen dimension.

5.3.2 Testing conditions that influence the results include axial position of the specimen, temperature and temperature variations, and maintenance of the apparatus.

5.3.3 Interpretation of data also influences results.

1. Scope

1.1 This test method covers the determination of shear modulus of structural materials. This test method is limited to materials in which, and to stresses at which, creep is negligible compared to the strain produced immediately upon loading. Elastic properties such as shear modulus, Young's modulus, and Poisson's ratio are not determined routinely and are generally not specified in materials specifications. Precision and bias statements for these test methods are therefore not available.

1.2 Units—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 may involve hazardous materials, operations, and equipment. 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.

2. Referenced Documents

E1012-19	Standard Practice for Verification of Testing Frame and Specimen Alignment Under Tensile and Compressive Axial Force Application
E111-17	Standard Test Method for Young´s Modulus, Tangent Modulus, and Chord Modulus
E8/E8M-24	Standard Test Methods for Tension Testing of Metallic Materials
E6-23a	Standard Terminology Relating to Methods of Mechanical Testing (Includes all amendments and changes 3/29/2023).