Advanced technical ceramics. Ceramic composites. Determination of elastic properties by resonant beam method up to 2000°C

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

31-07-2007

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative references
3 Terms and definitions
4 Principle
5 Significance and use
6 Apparatus
   6.1 Vacuum vessel
   6.2 Transducers
   6.3 Carbon fibre-bundle loops
   6.4 Pumping unit
   6.5 Control and evaluation units
   6.6 Balance
   6.7 Micrometer
   6.8 Callipers
7 Test specimens
   7.1 General
   7.2 Shape and dimensions
   7.3 Plane parallelism
   7.4 Number of test specimens
8 Test procedure
   8.1 Test specimen preparation
   8.2 Adjustment of the apparatus
   8.3 Measurement at room temperature
   8.4 Measurement at high temperatures
9 Calculation of results
   9.1 Basic concept
   9.2 How to calculate eigenfrequencies
   9.3 Identification, matching and fitting
   9.4 The two evaluation steps
10 Accuracy of method and errors
11 Test report
Annex A (informative) Example
   A.1 General
   A.2 Measurement
   A.3 First evaluation step
   A.4 Second evaluation step
   A.5 Results
Bibliography

Specifies the resonant beam method for the determination of the dynamic elastic moduli of fibre reinforced ceramic matrix composites from 20 degrees C up to 2000 degrees C in vacuum or inert atmosphere.

This European Standard specifies the resonant beam method for the determination of the dynamic elastic moduli of fibre reinforced ceramic matrix composites from 20 °C up to 2 000 °C in vacuum or inert atmosphere. The Young´s moduli and the shear moduli for different orientations with respect to the main axes of symmetry of the composite can be obtained. This document applies to ceramic matrix composites with fibre reinforcement: short fibres, unidirectional (1D), bidirectional (2D), and tridirectional (xD, with 2 ? x ? 3) which have at least orthothropic symmetry. NOTE 1 Dynamic means that the elastic moduli are determined non-quasistatically, i.e. under adiabatic conditions, as with the ultrasonic method set out in ENV 14186. The elastic moduli determined by this method may not be compared with moduli obtained in an isothermal condition by stressing statically or quasistatically as with EN 658-1, EN 658-2, EN 1892, EN 1893, EN 12290 and EN 12291. NOTE 2 The ceramic matrix composites with fibre reinforcement, listed above, are denoted as “composites” in the course of the document.

Committee	RPI/13
DevelopmentNote	Supersedes 05/30138935 DC. (07/2007)
DocumentType	Standard
Pages	32
PublisherName	British Standards Institution
Status	Current
Supersedes	05/30138935 DC : DRAFT OCT 2005

Standards	Relationship
DIN EN 15335:2007-08	Identical
EN 15335:2007	Identical
UNI EN 15335 : 2008	Identical
NF EN 15335 : 2007	Identical
NS EN 15335 : 1ED 2007	Identical
NEN EN 15335 : 2007	Identical
NBN EN 15335 : 2007	Identical
SN EN 15335 : 2007	Identical
I.S. EN 15335:2007	Identical
DIN EN 15335 E : 2007	Identical

ISO/IEC 17025:2005	General requirements for the competence of testing and calibration laboratories
EN 843-2:2006	Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 2: Determination of Young's modulus, shear modulus and Poisson's ratio
EN 12290:2005	Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of compression properties
EN 60584-2:1993	Thermocouples - Part 2: Tolerances
EN 658-1:1998	Advanced technical ceramics - Mechanical properties of ceramic composites at room temperature - Part 1: Determination of tensile properties
CEN/TS 820-5 : 2004	ADVANCED TECHNICAL CERAMICS - METHODS OF TESTING MONOLITHIC CERAMICS - THERMOMECHANICAL PROPERTIES - PART 5: DETERMINATION OF ELASTIC MODULI AT ELEVATED TEMPERATURES
EN 1892:2005	Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature under inert atmosphere - Determination of tensile properties
EN 658-2 : 2002	ADVANCED TECHNICAL CERAMICS - MECHANICAL PROPERTIES OF CERAMIC COMPOSITES AT ROOM TEMPERATURE - PART 2: DETERMINATION OF COMPRESSION PROPERTIES
EN 1893:2005	Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature in air at atmospheric pressure - Determination of tensile properties
ISO 3599:1976	Vernier callipers reading to 0,1 and 0,05 mm
EN 60584-1:2013	Thermocouples - Part 1: EMF specifications and tolerances
ENV 14186 : DRAFT 2002	ADVANCED TECHNICAL CERAMICS - CERAMIC COMPOSITES - MECHANICAL PROPERTIES AT ROOM TEMPERATURE, DETERMINATION OF ELASTIC PROPERTIES BY AN ULTRASONIC TECHNIQUE
ISO 3611:2010	Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics
ISO 17561:2016	Fine ceramics (advanced ceramics, advanced technical ceramics) — Test method for elastic moduli of monolithic ceramics at room temperature by sonic resonance
EN 12291:2003	Advanced technical ceramics - Mechanical properties of ceramic composites at high temperature in air at atmospheric pressure - Determination of compression properties
IEC 60584-1:2013	Thermocouples - Part 1: EMF specifications and tolerances

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BS EN 15335:2007

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Abstract

Scope

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International Equivalents

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