DD ENV 13234:2000
Superseded
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Advanced technical ceramics. Ceramic composites. Mechanical properties at ambient temperatures. Evaluation of the resistance to crack propagation by notch sensitivity testing
Hardcopy , PDF
29-12-2006
English
15-09-2000
1 Scope
2 Normative references
3 Principle
4 Significance and use
5 Definitions and symbols
5.1 ligament
5.2 notch depth, a
5.3 notched specimen width, bn
5.4 maximum tensile force, Fm
5.5 unnotched specimen tensile strength, st,m
5.6 notched specimen tensile strength, st,m,n
5.7 equivalent fracture toughness Keq
6 Apparatus
6.1 Test machine
6.2 Load train
6.3 Data recording system
6.4 Micrometers
6.5 Ligament size measuring device
7 Specimens
7.1 Unnotched test specimens
7.2 Notched test specimens
7.3 Notches
8 Test specimen preparation
8.1 Machining and preparation
8.2 Number of test specimens
9 Test procedure
9.1 Test on reference specimen
9.2 Test on notched specimen
10 Calculation of results
10.1 Test specimen origin
10.2 Tensile strength of unnotched specimen
10.3 Tensile strength of the notched specimen
10.4 Plotting of notch sensitivity diagram
10.5 Calculation of equivalent fracture toughness
for the different classes of behaviour
11 Test report
Annex A (informative) Bibliography
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