EN 16603-32-01:2021

SLOVENSKI STANDARD
01-marec-2022
Nadomešča:
SIST EN 16603-32-01:2014
Vesoljska tehnika - Kontrola razpok
Space engineering - Fracture control
Raumfahrttechnik - Überwachung des Rissfortschritts
Ingénierie spatiale - Maîtrise de la rupture
Ta slovenski standard je istoveten z: EN 16603-32-01:2021
ICS:
49.140 Vesoljski sistemi in operacije Space systems and
operations
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN 16603-32-01

NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2021
ICS 49.140
Supersedes EN 16603-32-01:2014
English version
Space engineering - Fracture control
Ingénierie spatiale - Maîtrise de la rupture Raumfahrttechnik - Überwachung des Rissfortschritts
This European Standard was approved by CEN on 5 December 2021.

CEN and CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for
giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical
references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to
any CEN and CENELEC member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by
translation under the responsibility of a CEN and CENELEC member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.

CEN and CENELEC members are the national standards bodies and national electrotechnical committees of Austria, Belgium,
Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia,
Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

CEN-CENELEC Management Centre:
Rue de la Science 23, B-1040 Brussels
© 2021 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. EN 16603-32-01:2021 E
reserved worldwide for CEN national Members and for
CENELEC Members.
Table of contents
European Foreword . 6
1 Scope . 8
2 Normative references . 9
3 Terms, definitions and abbreviated terms . 10
3.1 Terms from other standards . 10
3.2 Terms specific to the present standard . 11
3.3 Abbreviated terms. 16
3.4 Nomenclature . 18
4 Principles . 19
5 Fracture control programme . 21
5.1 General . 21
5.2 Fracture control plan . 22
5.3 Reviews . 22
5.3.1 General . 22
5.3.2 Safety and project reviews . 22
6 Identification and evaluation of PFCI . 24
6.1 Identification of PFCIs . 24
6.2 Evaluation of PFCIs . 27
6.2.1 Damage tolerance . 27
6.2.2 Fracture critical item classification . 29
6.3 Compliance procedures . 29
6.3.1 General . 29
6.3.2 Safe life items . 30
6.3.3 Fail-safe items . 30
6.3.4 Contained and restrained items. 31
6.3.5 Low-risk fracture items . 32
6.4 Documentation requirements . 38

6.4.1 Fracture control plan . 38
6.4.2 Lists . 38
6.4.3 Analysis and test documents . 38
6.4.4 Fracture control summary report . 38
7 Fracture mechanics analysis . 40
7.1 General . 40
7.2 Analytical life prediction . 41
7.2.1 Identification of all load events . 41
7.2.2 Identification of the most critical location and orientation of the crack . 42
7.2.3 Derivation of stresses for the critical location. 42
7.2.4 Derivation of the stress spectrum . 42
7.2.5 Derivation of material data . 43
7.2.6 Identification of the initial crack size and shape . 44
7.2.7 Identification of an applicable stress intensity factor solution . 46
7.2.8 Performance of crack growth calculations . 47
7.3 Critical crack-size calculation . 47
8 Special requirements . 49
8.1 Introduction . 49
8.2 Pressurized hardware . 49
8.2.1 General . 49
8.2.2 Pressure vessels . 50
8.2.3 Pressurized structures . 51
8.2.4 Pressure components, including lines and fittings . 52
8.2.5 Low risk sealed containers . 53
8.2.6 Hazardous fluid containers . 53
8.2.7 Pressurized components with non-hazardous LBB failure mode . 54
8.3 Welds . 54
8.3.1 Nomenclature . 54
8.3.2 Safe life analysis of welds . 55
8.4 Composite, bonded and sandwich structures . 56
8.4.1 General . 56
8.4.2 Defect assessment. 56
8.4.3 Damage threat assessment . 58
8.4.4 Compliance procedures . 60
8.5 Non-metallic items other than composite, bonded, sandwich and glass items . 62
8.6 Rotating machinery . 63
8.7 Glass components . 63
8.8 Fasteners . 64
8.9 Alloys treated with electric discharge manufacturing (EDM) . 65
9 Material selection . 66
10 Quality assurance and NDT . 67
10.1 Overview . 67
10.2 Nonconformances. 67
10.3 NDT of PFCI . 67
10.3.1 General . 67
10.3.2 NDT of raw material . 69
10.3.3 NDT of safe life finished items . 69
10.4 Non-destructive testing of metallic materials . 70
10.4.1 <> . 70
10.4.2 NDT categories versus initial crack size . 70
10.4.3 <> . 71
10.5 <> . 72
10.5.1 <> . 72
10.5.2 <> . 73
10.6 Traceability . 73
10.6.1 General . 73
10.6.2 Requirements . 74
10.7 Detected defects . 74
10.7.1 General . 74
10.7.2 Acceptability verification . 75
10.7.3 Improved probability of detection . 76
11 Reduced fracture control programme . 77
11.1 Applicability. 77
11.2 Requirements . 77
11.2.1 General . 77
11.2.2 Modifications . 77
Annex A (informative) The ESACRACK software package . 84
Annex B (informative) References . 85
Bibliography . 86

Figures
Figure 5-1: < . 22
Figure 6-1: Identification of PFCI . 26
Figure 6-2: Fracture control evaluation procedures . 28
Figure 6-3: Safe life item evaluation procedure for metallic materials . 35
Figure 6-4: Safe life item evaluation procedure for composite, bonded and sandwich
items . 36
Figure 6-5: Evaluation procedure for fail-safe items . 37
Figure 7-1: Initial crack g
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