Flexural Properties of Continuous Fiber-Reinforced Advanced Ceramic Composites ASTM C1341
The test method in ASTM C1341 is used for material development, material flexural specifications, and quality control of ceramic composite specimens. The specimens in the form of rectangular bars are assumed to have continuous fiber-reinforced, homogenous and linearly elastic ceramic composites.
The test procedures in ASTM C1341 applies primarily to all possible ceramic matrix composites along with continuous fiber reinforcements unidirectionally, bidirectionally, and tri-directionally, including other continuous fiber architectures. Additionally it can also be extended to glass matrix composites with continuous fiber reinforcements.
The tests explained in ASTM C1341 includes broadly three major test geometries –
First involves using a three-point loading system which utilizes center point force application on a supported beam.
Next geometry explains a four-point loading system which utilizes two force application points that must be equally spaced from their adjacent support points. This uses the applied force as one-half of the support span.
Finally the third geometry is similar to the second geometry using a four-point loading system and utilizing two force application points that must be equally spaced from their adjacent support points. However, this uses the applied force as one-third of the support span.
The test specimen in ASTM C1342 must be a composite wherein the principal direction is identical with the axis of the beam.
Only the values expressed in SI units are considered to be standard. The ASTM C1341 test procedure does not include any other units.
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