Scope:

ASTM C1161 is a testing standard that calculates the flexural strength of advanced ceramic materials at ambient temperature. Flexural strength is defined as a measure of the ultimate strength of a specified beam to bending. This test method is useful for monolithic or particulate- or whisker-reinforced ceramics, but it is not useful for continuous fiber-reinforced ceramic composites.

Test Procedure:

The test sample is prepared as stated by the ASTM C1161 standard. The sample is mounted to the flex fixture below the axis of the applied load, ensuring an equal amount of overhang beyond the outer bearings. Then, the load is applied at right angles to the fixture till the sample breaks, and the braking force is noted. Crosshead speeds for various testing configurations are stated by this standard. The sample is marked at the points of load to differentiate between the tensile and compression forces. These marks help in post-fracture analysis.

Sample size:

The sample dimensions for the ASTM C1161 standard are given in the table below:

Data:

Flexural Strength

Conclusion:

ASTM C1161 is a testing standard that calculates the flexural strength of advanced ceramic materials at ambient temperature.