I.S. ENV 14186:2002
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
ADVANCED TECHNICAL CERAMICS - CERAMIC COMPOSITES - MECHANICAL PROPERTIES AT ROOM TEMPERATURE, DETERMINATION OF ELASTIC PROPERTIES BY AN ULTRASONIC TECHNIQUE
Hardcopy , PDF
04-02-2008
English
01-01-2002
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
Foreword
1 Scope
2 Normative references
3 Principle
4 Significance and use
5 Terms and definitions and symbols
6 Apparatus
6.1 Ultrasonic tank with thermostatic control
6.2 Temperature measurement device
6.3 Test specimen holder
6.4 Transducers
6.5 Transducer holder
6.6 Pulse generator
6.7 Signal recording system
7 Test specimens
8 Test specimen preparation
9 Test procedure
9.1 Choice of frequency
9.2 Establishment of the test temperature
9.3 Reference test without test specimen
9.4 Measurement with the specimen
10 Calculation
10.1 Delay
10.2 Calculation of the propagation velocities
10.3 Calculation of the refracted angle theta[r]
10.4 Identification of the elastic constants C[ij]
10.5 Back calculation of the phase velocities
10.6 Polar plots of the velocity curves
10.7 Calculation of the quadratic deviation
10.8 Calculation of the engineering constants
11 Test validity
11.1 Measurements
11.2 Criterion of validity for the reliability of the C[ij]
components
12 Test report
Annex A (informative) Example of a presentation of the results
for a material with orthothropic symmetry
Bibliography
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