CEN/TR 17603-32-22:2022

Space engineering - Insert design handbook

This handbook recommends engineering inserts and practices for European programs and projects. It may be cited in contracts and program documents as a reference for guidance to meet specific program/project needs.
The target users of this handbook are engineers involved in the design, analysis and verification of launchers and spacecraft in relation to insert usage. The current know‐how is documented in this handbook in order to make expertise to all European developers of space systems.
It is a guidelines document, therefore it includes advisory information rather than requirements.

Raumfahrttechnik - Handbuch zu Einsätzen

Ingénierie spatiale - Manuel de conception d’inserts

Vesoljska tehnika - Priročnik za oblikovanje vstavkov

Ta priročnik priporoča inženirske vstavke in prakse za evropske programe in projekte. Lahko se navaja v pogodbah in programskih dokumentih kot referenca za smernice glede izpolnjevanja posebnih potreb v okviru programa/projekta.
Ciljni uporabniki tega priročnika so inženirji, ki se ukvarjajo s projektiranjem, analiziranjem in preverjanjem lansirnikov ter vesoljskih plovil v povezavi z uporabo vstavkov. Ta priročnik dokumentira dosedanje strokovno znanje, da se dostop do njega omogoči vsem evropskim razvijalcem vesoljskih sistemov.
Ker gre za dokument s smernicami, ne podaja zahtev, temveč vsebuje informacije svetovalne narave.

General Information

• Status: Published
• Publication Date: 07-Jun-2022
• ICS: 49.030.99 - Other fasteners
• ICS: 49.140 - Space systems and operations
• Technical Committee: CEN/CLC/TC 5 - Space
• Drafting Committee: CEN/CLC/TC 5/WG 6 - Upstream standards
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 08-Jun-2022
• Due Date: 29-Jun-2022
• Completion Date: 08-Jun-2022
• Mandate: M/496 - Mandate addressed to CEN, CENELEC and ETSI to develop standardisation regarding space industry (Phase 3 of the process)
• Ref Project: SIST-TP CEN/TR 17603-32-22:2022 - Space engineering - Insert design handbook

Standards Content (Sample)

SLOVENSKI STANDARD
01-september-2022
Vesoljska tehnika - Priročnik za oblikovanje vstavkov
Space engineering - Insert design handbook
Raumfahrttechnik - Handbuch zu Einsätzen
Ingénierie spatiale - Manuel de conception d’inserts
Ta slovenski standard je istoveten z: CEN/TR 17603-32-22:2022
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.

TECHNICAL REPORT CEN/TR 17603-32-22

RAPPORT TECHNIQUE
TECHNISCHER BERICHT
June 2022
ICS 49.030.99; 49.140
English version
Space engineering - Insert design handbook
Ingénierie spatiale - Manuel de conception d'inserts Raumfahrttechnik - Handbuch zu Einsätzen

This Technical Report was approved by CEN on 17 May 2022. It has been drawn up by the Technical Committee CEN/CLC/JTC 5.

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
© 2022 CEN/CENELEC All rights of exploitation in any form and by any means
Ref. No. CEN/TR 17603-32-22:2022 E
reserved worldwide for CEN national Members and for
CENELEC Members.
Table of contents
European Foreword . 27
1 Scope . 28
2 References . 29
3 Terms, definitions and abbreviated terms . 30
4 Insert system . 67
4.1 Insert systems and components . 67
4.1.1 Inserts . 67
4.1.2 Insert system components . 69
4.1.3 Loading modes . 70
5 Insert . 71
5.1 General . 71
5.2 Types. 71
5.2.1 General . 71
5.2.2 Group A . 71
5.2.3 Group B . 73
5.2.4 Group C . 73
5.2.5 Potting methods . 74
5.2.6 Injection . 74
5.3 Sizes. 75
5.3.1 General . 75
5.3.2 Standards . 75
5.3.3 Strength . 76
5.3.4 Standardised diameters . 77
5.3.5 Standardised heights . 78
5.4 Materials . 79
5.4.1 General . 79
5.4.2 Aluminium alloys . 80
5.4.3 Titanium alloys . 80
5.4.4 Steels . 81
5.4.5 Material selection . 81
5.5 Surface protection. 81
5.5.1 General . 81
5.5.2 Aluminium alloy . 82
5.6 References . 83
5.6.1 General . 83
5.6.2 ECSS standards . 83
6 Sandwich panels . 84
6.1 Sandwich properties . 84
6.1.1 Insert load-bearing capability . 84
6.1.2 Sandwich dimensions . 85
6.2 Face sheet properties . 85
6.2.1 Tensile and compressive loading . 85
6.2.2 Shear loading . 87
6.2.3 Other loads . 89
6.3 Core properties . 90
6.3.1 Types of cores . 90
6.3.2 Hexagonal core . 90
6.4 Core shear modulus . 94
6.4.1 Data sources . 94
6.5 Core shear strength . 94
6.5.1 Data sources . 95
6.6 Core tensile strength . 95
6.6.1 Data sources . 95
6.6.2 Aluminium core . 95
6.6.3 Non-metallic cores . 95
6.7 Core compressive strength . 96
6.8 Core to face sheet bond . 96
6.9 References . 96
7 Embedding of inserts . 97
7.1 Potting compounds . 97
7.1.1 Commercial products . 97
7.1.2 Modification of properties . 99
7.2 Potting and equivalent dimensions . 99
7.2.1 Insert load capability . 99
7.2.2 Increasing insert tensile capability . 101
7.3 Effective potting radius, or equivalent dimension . 101
7.3.1 Minimum value . 102
7.3.2 Average value . 102
7.3.3 Relationship of minimum and average values . 103
7.4 Real potting radius, or equivalent dimension . 104
7.4.1 Minimum value . 104
7.4.2 Average value . 104
7.4.3 Relationship between minimum and average values . 104
7.5 Potting height . 105
7.5.1 Full potting . 105
7.5.2 Partial potting . 106
7.5.3 Minimum value . 106
7.5.4 Average value . 106
7.5.5 Relationship of minimum and average values . 106
7.6 Potting mass . 108
7.6.1 Effect of core and insert characteristics . 108
7.6.2 Total mass of insert system . 110
7.7 References . 110
7.7.1 General . 110
7.7.2 ECSS standards . 110
8 Mechanics of sandwich structures . 111
8.1 Structural sandwich concept . 111
8.1.1 Properties of constituent materials . 112
8.1.2 Fundamentals of classical ‘antiplane’ sandwich theory . 113
8.2 Structural failure modes . 116
8.2.1 Global failure modes . 117
8.2.2 Local failure modes . 118
8.3 Load introduction aspects and discontinuities . 118
8.3.1 General . 118
8.3.2 Local bending response . 119
8.3.3 Antiplane-type theory . 120
8.3.4 Finite element analysis . 120
8.3.5 Elastic foundation model . 120
8.3.6 Transverse flexibility . 120
8.3.7 Higher-order sandwich beam theory . 120
8.4 Sandwich plates with potted inserts . 121
8.4.1 Classification of potted insert types . 121
8.4.2 Load transfer . 122
8.4.3 External load cases . 122
8.4.4 Example . 124
8.4.5 Purpose of the potting compound . 129
8.4.6 Design guidelines . 129
8.5 Remarks . 130
8.5.1 Gene
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