ASTM-C1341 Standard Test Method for Flexural Properties of Continuous Fiber-Reinforced Advanced Ceramic Composites

ASTM-C1341 - 2013 EDITION - CURRENT
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Standard Test Method for Flexural Properties of Continuous Fiber-Reinforced Advanced Ceramic Composites
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Scope

1.1 This test method covers the determination of flexural properties of continuous fiber-reinforced ceramic composites in the form of rectangular bars formed directly or cut from sheets, plates, or molded shapes. Three test geometries are described as follows:

1.1.1 Test Geometry I—A three-point loading system utilizing center point force application on a simply supported beam.

1.1.2 Test Geometry IIA—A four-point loading system utilizing two force application points equally spaced from their adjacent support points with a distance between force application points of one half of the support span.

1.1.3 Test Geometry IIB—A four-point loading system utilizing two force application points equally spaced from their adjacent support points with a distance between force application points of one third of the support span.

1.2 This test method applies primarily to all advanced ceramic matrix composites with continuous fiber reinforcement: uni-directional (1-D), bi-directional (2-D), tri-directional (3-D), and other continuous fiber architectures. In addition, this test method may also be used with glass (amorphous) matrix composites with continuous fiber reinforcement. However, flexural strength cannot be determined for those materials that do not break or fail by tension or compression in the outer fibers. This test method does not directly address discontinuous fiber-reinforced, whisker-reinforced, or particulate-reinforced ceramics. Those types of ceramic matrix composites are better tested in flexure using Test Methods C1161 and C1211.

1.3 Tests can be performed at ambient temperatures or at elevated temperatures. At elevated temperatures, a suitable furnace is necessary for heating and holding the test specimens at the desired testing temperatures.

1.4 This test method includes the following:

 

Section

Scope

1

Referenced Documents

2

Terminology

3

Summary of Test Method

4

Significance and Use

5

Interferences

6

Apparatus

7

Precautionary Statement

8

Test specimens

9

Procedures

10

Calculation of Results

11

Report

12

Precision and Bias

13

Keywords

14

References

 

CFCC Surface Condition and Finishing

Annex A1

Conditions and Issues in Hot Loading of Test specimens into Furnaces

Annex A2

Toe Compensation on Stress-Strain Curves

Annex A3

Corrections for Thermal Expansion in Flexural Equations

Annex A4

Example of Test Report

Appendix X1


1.5 The values stated in SI units are to be regarded as the standard in accordance with IEEE/ASTM SI 10 .

1.6 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.

Keywords

ceramic matrix composite; CFCC; continuous fiber composite; flexural strength; flexure test; modulus of elasticity; ICS Number Code 81.060.30 (Advanced ceramics)

To find similar documents by ASTM Volume:

15.01 (Refractories, Activated Carbon; Advanced Ceramics)

To find similar documents by classification:

81.060.30 (Advanced ceramics)

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Document Number

ASTM-C1341-13

Revision Level

2013 EDITION

Status

Current

Modification Type

Revision

Publication Date

April 15, 2013

Document Type

Test Method

Page Count

21 pages

Committee Number

C28.07