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NEN EN 658-1 : 1998

Current
Current

The latest, up-to-date edition.

ADVANCED TECHNICAL CERAMICS - MECHANICAL PROPERTIES OF CERAMIC COMPOSITES AT ROOM TEMPERATURE - PART 1: DETERMINATION OF TENSILE PROPERTIES
Published date

01-12-2013

1 Scope
2 Normative references
3 Principle
4 Definitions and symbols
    4.1 calibrated length L
    4.2 gauge length, Lo
    4.3 initial cross section area Ao
    4.4 longitudinal deformation, deltaL
    4.5 tensile strain, e
    4.6 tensile stress
    4.7 maximum tensile force, Ft,m
    4.8 tensile strength
    4.9 proportional limit stress
    4.10 proportionality ratio or pseudo-elastic modulus
          Ep, elastic modulus, E
    4.11 cumulative damage energy
    4.12 axial strain
    4.13 bending strain
    4.14 percent bending
5 Apparatus
    5.1 Test machine
    5.2 Load train
    5.3 Strain measurement
    5.4 Data recording system
    5.5 Micrometers
6 Test specimens
7 Test specimen preparation
    7.1 Machining and preparation
    7.2 Number of test specimens
8 Test procedure
    8.1 Displacement rate
    8.2 Measurement of test specimen dimensions
    8.3 Testing technique
    8.4 Test validity
9 Calculation of results
    9.1 Test specimen origin
    9.2 Tensile strength
    9.3 Tensile strain at maximum tensile force
    9.4 Proportionality ratio or pseudo-elastic modulus
          elastic modulus
    9.5 Cumulative damage energy
10 Test report

Defines conditions for determining the tensile properties of ceramic matrix composite materials with continuous fibre reinforcement at ambient temperature. Applicable to all ceramic matrix composites having a continuous fibre reinforcement, unidirectional, bidirectional and tridirectional loaded along one principle axis of reinforcement.

DevelopmentNote
Supersedes NEN NVN ENV 658-1. (06/2003)
DocumentType
Standard
PublisherName
Netherlands Standards
Status
Current
Supersedes

Standards Relationship
EN 658-1:1998 Identical
DIN EN 658-1:1999-01 Identical
BS EN 658-1:1998 Identical
UNI EN 658-1 : 1999 Identical

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