EN 658-2:2002

Foreword
1 Scope
2 Normative references
3 Principle
4 Terms, definitions and symbols
5 Apparatus
   5.1 Test machine
   5.2 Load train
   5.3 Strain measurement
       5.3.1 Strain gauges
       5.3.2 Extensometry
   5.4 Data recording system
   5.5 Dimension measuring devices
6 Test specimens
   6.1 Compression between platens
   6.2 Test specimen used with grips
7 Test specimen preparation
   7.1 Machining and preparation
   7.2 Number of test specimen
8 Test procedure
   8.1 Displacement rate
   8.2 Measurement of test specimen dimensions
   8.3 Buckling
   8.4 Testing technique
       8.4.1 Specimen mounting
       8.4.2 Extensometers
       8.4.3 Measurements
   8.5 Test validity
9 Calculation of results
   9.1 Test specimen origin
   9.2 Compression strength
   9.3 Strain at maximum compression force
   9.4 Proportionality ratio or pseudo-elastic modulus,
       elastic modulus
10 Test report

This part of EN 658 specifies the conditions for determination of compression properties of ceramic matrix composite materials with continuous fibre reinforcement at ambient temperature. This standard applies to all ceramic matrix composites with a continuous fibre reinforcement, unidirectional (1D), bidirectional (2D), and tridirectional (xD, with 2< x < 3), loaded along one principal axis of reinforcement. Two cases are distinguished: - compression between platens; - compression using grips.