ASTM C1499 Test Fixture

Description

ASTM C1499 Standard Test Method for Monotonic Equibiaxial Flexural Strength of Advanced Ceramics at Ambient Temperature

MONOTONIC EQUIBIAXIAL FLEXURAL STRENGTH (RING-ON-RING) TEST FIXTURE

ASTM C1499 the determination of the equibiaxial strength of advanced ceramics at ambient temperature via concentric ring configurations under monotonic

uniaxial loading.

In addition, test specimen fabrication methods, testing modes, testing rates, allowable deflection, and data collection and reporting procedures

are addressed.

Two types of test specimens are considered: machined test specimens and as-fired test specimens exhibiting a limited degree of warpage.

Strength as used in this test method refers to the maximum strength obtained under monotonic application of load.

Monotonic loading refers to a test conducted at a constant rate in a continuous fashion, with no reversals from test initiation to final fracture.

ASTM C1499 is intended primarily for use with advanced ceramics that macroscopically exhibit isotropic, homogeneous, continuous behavior.

While this test method is intended for use on monolithic advanced ceramics, certain whisker- or particle-reinforced composite ceramics, as well as certain

discontinuous fiber-reinforced composite ceramics, may also meet these macroscopic behavior assumptions.

Generally, continuous fiber ceramic composites do not macroscopically exhibit isotropic, homogeneous, continuous behavior, and the application of this test

method to these materials is not recommended.

*** Before conducting ASTM C1499 , it is important to read the entire specification. Standards can be obtained from appropriate standard authorities.

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