BS EN 15158:2006

Foreword
1 Scope
2 Normative references
3 Terms, definitions and symbols
4 Principle
5 Significance and use
6 Apparatus
   6.1 Fatigue test machine
   6.2 Load train
   6.3 Test chamber
   6.4 Set-up for heating
   6.5 Extensometer
   6.6 Temperature measurement
   6.7 Data recording system
   6.8 Micrometers
7 Test specimens
8 Test specimen preparation
   8.1 Machining and preparation
   8.2 Number of test specimens
9 Test procedure
   9.1 Test set-up: temperature considerations
   9.2 Measurement of test specimen dimensions
   9.3 Testing technique
   9.4 Test validity
10 Calculation of results
   10.1 Time to failure, t[f]
   10.2 Damage parameters
   10.3 Residual properties
11 Test report
Annex A (informative) Schematic evolution of E

Describes the conditions for the determination of constant-amplitude of load or strain in uniaxial tension/tension or in uniaxial tension/compression cyclic fatigue properties of ceramic matrix composite materials (CMCs) with fibre reinforcement for temperature up to 2 000 degree C under vacuum or a gas atmosphere which is inert to the material under test.

This European Standard specifies the conditions for the determination of constant-amplitude of load or strain in uniaxial tension/tension or in uniaxial tension/compression cyclic fatigue properties of ceramic matrix composite materials (CMCs) with fibre reinforcement for temperature up to 2 000 °C under vacuum or a gas atmosphere which is inert to the material under test. NOTE Test environments are specified which are intended to prevent the material under test from chemically reacting with them. This European Standard applies to all ceramic matrix composites with fibre reinforcement, unidirectional (1D), bi-directional (2D), and tri-directional (xD, where 2 < x ? 3).