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Norm
ÖNORM EN 843-2
Issue date: 2007 03 01
Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 2: Determination of Young's modulus, shear modulus and Poisson's ratio
This part of EN 843 specifies methods for determining the elastic moduli, specifically Young s modulus, shear
modulus and Poisson s ratio, of advanced monolithic technic...
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Publisher:
Austrian Standards International
Format:
Digital | 39 Pages
Language:
German
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This part of EN 843 specifies methods for determining the elastic moduli, specifically Young s modulus, shear
modulus and Poisson s ratio, of advanced monolithic technical ceramics at room temperature. This European
Standard prescribes four alternative methods for determining some or all of these three parameters:
A The determination of Young s modulus by static flexure of a thin beam in three- or four-point flexure.
B The determination of Young s modulus by forced longitudinal resonance, or Young s modulus, shear
modulus and Poisson s ratio by forced flexural and torsional resonance, of a thin beam.
C The determination of Young s modulus, shear modulus and Poisson s ratio from the time-of-flight of an
ultrasonic pulse.
D The determination of Young s modulus from the fundamental natural frequency of a struck bar (impulse
excitation method).
All the test methods assume the use of homogeneous test pieces of linear elastic materials.
NOTE 1 Not all ceramic materials are equally and linearly elastic in tension and compression, such as some porous
materials and some piezoelectric materials.
With the exception of Method C, the test assumes that the test piece has isotropic elastic properties. Method C
may be used to determine the degree of anisotropy by testing in different orientations.
NOTE 2 An ultrasonic method for dealing with anisotropic materials (ceramic matrix composites) can be found in
ENV 14186 [1]. An alternative to Method D for isotropic materials using disc test pieces is given in
Annex A.
NOTE 3 At high porosity levels all of the methods except Method C may become inappropriate. The methods are only
suitable for a maximum grain size (see EN 623-3), excluding deliberately added whiskers, of less than 10 % of the minimum
dimension of the test piece.
NOTE 4 The different methods given in this European Standard can produce slightly different results on the same
material owing to difference (...abbreviated)
ÖNORM EN 843-2
2007 03 01
Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Par...
Norm
↖
ÖNORM ENV 843-2
2001 01 01
Advanced technical ceramics - Monolithic ceramics - Mechanical properties at room temperature - Part...
Vornorm Entwurf
ÖNORM ENV 843-2
1996 03 01
Advanced technical ceramics - Monolithic ceramics - Mechanical properties at room temperature - Part...
Vornorm
Draft
ISO/DIS 3611
Issue date :
2008 03 14
Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics
Norm
ÖNORM EN 623-2
Issue date :
1994 01 01
Advanced technical ceramics - Monolithic ceramics - General and textural properties - Part 2: Determination of density and porosity
Norm
ÖNORM EN 623-3
Issue date :
2003 01 01
Advanced technical ceramics - Monolithic ceramics - General and textural properties - Part 3: Determination of grain size and size distribution (characterized by the Linear Intercept Method)
Norm
ÖNORM EN 623-4
Issue date :
2005 01 01
Advanced technical ceramics - Monolithic ceramics - General and textural properties - Part 4: Determination of surface roughness
Norm
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Issue date :
2008 08 01
Advanced technical ceramics - Mechanical properties of monolithic ceramics at room temperature - Part 1: Determination of flexural strength
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Issue date :
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Issue date :
2005 02 01
Metallic materials - Verification of static uniaxial testing machines - Part 1: Tension/compression testing machines - Verification and calibration of the force-measuring system (ISO 7500-1:2004)
Norm
ISO 3611:2010
Issue date :
2010 10 19
Geometrical product specifications (GPS) — Dimensional measuring equipment: Micrometers for external measurements — Design and metrological characteristics