Standard Test Method for Young's Modulus, Shear Modulus, and Poisson's Ratio for Glass and Glass-Ceramics by Resonance

Importancia y uso:

4.1 This test system has advantages in certain respects over the use of static loading systems in the measurement of glass and glass-ceramics:

4.1.1 Only minute stresses are applied to the specimen, thus minimizing the possibility of fracture.

4.1.2 The period of time during which stress is applied and removed is of the order of hundreds of microseconds, making it feasible to perform measurements at temperatures where delayed elastic and creep effects proceed on a much-shortened time scale, as in the transformation range of glass, for instance.

4.2 The test is suitable for detecting whether a material meets specifications, if cognizance is given to one important fact: glass and glass-ceramic materials are sensitive to thermal history. Therefore the thermal history of a test specimen must be known before the moduli can be considered in terms of specified values. Material specifications should include a specific thermal treatment for all test specimens.

Subcomité:

C14.04

Referida por:

F1538-24, C0885-87R20, D2442-75R20, C1198-20, E1875-20A, D0116-86R20, F0561-19, C1259-21

Volúmen:

15.02

Número ICS:

81.040.30 (Glass products), 81.060.01 (Ceramics in general)

Palabras clave:

glass; Poisson's ratio; resonance; shear modulus; Young's modulus ;