EN 16603-32-01:2014

SLOVENSKI STANDARD
01-november-2014
1DGRPHãþD
SIST EN 14165:2004
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 16603-32-01:2014
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
August 2014
ICS 49.140 Supersedes EN 14165:2004
English version
Space engineering - Fracture control
Ingénierie spatiale - Maîtrise de la rupture Raumfahrttechnik - Überwachung des Rissfortschritts
This European Standard was approved by CEN on 10 February 2014.

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, Former Yugoslav Republic of Macedonia, France, Germany, Greece,
Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia,
Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.

CEN-CENELEC Management Centre:
Avenue Marnix 17, B-1000 Brussels
© 2014 CEN/CENELEC All rights of exploitation in any form and by any means reserved Ref. No. EN 16603-32-01:2014 E
worldwide for CEN national Members and for CENELEC
Members.
Table of contents
Foreword . 6
1 Scope . 7
2 Normative references . 8
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. 17
4 Principles . 19
5 Fracture control programme . 21
5.1 General . 21
5.2 Fracture control plan . 21
5.3 Reviews . 22
5.3.1 General . 22
5.3.2 Safety and project reviews . 23
6 Identification and evaluation of PFCI . 25
6.1 Identification of PFCIs . 25
6.2 Evaluation of PFCIs . 26
6.2.1 Damage tolerance . 26
6.2.2 Fracture critical item classification . 28
6.3 Compliance procedures . 28
6.3.1 General . 28
6.3.2 Safe life items . 28
6.3.3 Fail-safe items . 29
6.3.4 Contained items . 30
6.3.5 Low-risk fracture items . 31
6.4 Documentation requirements . 36
6.4.1 Fracture control plan . 36
6.4.2 Lists . 36
6.4.3 Analysis and test documents . 36
6.4.4 Fracture control summary report . 36
7 Fracture mechanics analysis . 38
7.1 General . 38
7.2 Analytical life prediction . 39
7.2.1 Identification of all load events . 39
7.2.2 Identification of the most critical location and orientation of the crack . 39
7.2.3 Derivation of stresses for the critical location. 40
7.2.4 Derivation of the stress spectrum . 40
7.2.5 Derivation of material data . 41
7.2.6 Identification of the initial crack size and shape . 41
7.2.7 Identification of an applicable stress intensity factor solution . 42
7.2.8 Performance of crack growth calculations . 43
7.3 Critical crack-size calculation . 43
8 Special requirements . 45
8.1 Introduction . 45
8.2 Pressurized hardware . 45
8.2.1 General . 45
8.2.2 Pressure vessels . 45
8.2.3 Pressurized structures . 48
8.2.4 Pressure components . 48
8.2.5 Low risk sealed containers . 49
8.2.6 Hazardous fluid containers . 49
8.3 Welds . 50
8.3.1 Nomenclature . 50
8.3.2 Safe life analysis of welds . 50
8.4 Composite, bonded and sandwich structures . 51
8.4.1 General . 51
8.4.2 Defect assessment. 51
8.4.3 Damage threat assessment . 53
8.4.4 Compliance procedures . 54
8.5 Non-metallic items other than composite, bonded, sandwich and glass items . 57
8.6 Rotating machinery . 58
8.7 Glass components . 58
8.8 Fasteners . 59
9 Material selection . 61
10 Quality assurance and Inspection . 62
10.1 Overview . 62
10.2 Nonconformances. 62
10.3 Inspection of PFCI . 62
10.3.1 General . 62
10.3.2 Inspection of raw material . 63
10.3.3 Inspection of safe life finished items . 64
10.4 Non-destructive inspection of metallic materials . 65
10.4.1 General . 65
10.4.2 NDI categories versus initial crack size . 65
10.4.3 Inspection procedure requirements for standard NDI . 69
10.5 NDI for composites, bonded and sandwich parts . 72
10.5.1 General . 72
10.5.2 Inspection requirements . 73
10.6 Traceability . 74
10.6.1 General . 74
10.6.2 Requirements . 75
10.7 Detected defects . 75
10.7.1 General . 75
10.7.2 Acceptability verification . 76
10.7.3 Improved probability of detection . 77
11 Reduced fracture control programme . 78
11.1 Applicability. 78
11.2 Requirements . 78
11.2.1 General . 78
11.2.2 Modifications . 78
Annex A (informative) The ESACRACK software package . 80
Annex B (informative) References . 81
Bibliography . 82

Figures
Figure 5-1: Identification of PFCI . 22
Figure 6-1: Fracture control evaluation procedures . 27
Figure 6-2: Safe life item evaluation procedure for metallic materials . 33
Figure 6-3: Safe life item evaluation procedure for composite, bonded and sandwich
items . 34
Figure 6-4: Evaluation procedure for fail-safe items . 35
Figure 8-1: Procedure for metallic pressure vessel and metallic liner evaluation . 47
Figure 10-1: Initial crack geometries for parts without holes . 71
Figure 10-2: Initial crack geometries for parts with holes . 72
Figure 10-3: Initial crack geometries for cylindrical parts . 72

Tables
Table 8-1: Factor on stress for sustained crack gr
...