ISO/PAS 8329:2024

Publicly
Available
Specification
ISO/PAS 8329
First edition
Extended master connection
2024-08
file (χMCF) — Description of
mechanical connections and joints
in structural systems
Reference number
© ISO 2024
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Published in Switzerland
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Contents Page
Foreword .vi
Introduction .vii
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Design principles and basic features of χMCF . 1
4.1 General .1
4.2 Design principles .2
4.3 Idealization of joints .2
4.4 Reconstruction of joints from χMCF .3
4.5 Description of topology .3
4.6 χMCF in the development processes .4
5 Keywords of XML specification . 5
5.1 Keywords.5
6 Parts, properties and assemblies . 7
6.1 General .7
6.2 Parts .7
6.2.1 General .7
6.2.2 Part labels .7
6.2.3 Part instances .7
6.3 Properties .7
6.4 Assemblies .8
7 File structure of χMCF . 8
7.1 General .8
7.2 Elements containing general information .9
7.2.1 General .9
7.2.2 Date .9
7.2.3 Time .9
7.2.4 Version .10
7.2.5 Unit system .10
7.3 Application, user and process specific data.10
7.3.1 General .10
7.3.2 User specific data .11
7.3.3 Finite element specific data . 12
7.4 Connection data . 13
7.4.1 General . 13
7.4.2 Connected objects .14
7.4.3 Contacts and friction .19
7.4.4 Joints . .21
7.5 Minimalistic example of a χMCF file .21
7.6 XML schema definition . 22
8 Data common to any connection .22
8.1 Indices and their properties . 22
8.2 Connection referencing . 23
8.2.1 Need for referencing . 23
8.2.2 Attribute label . 23
8.2.3 Attribute ident . 23
8.3 Dimensions and coordinates . 23
8.4 Attribute quality_control . . 23
8.5 Custom attributes list . 23
8.6 Distinction between and .27
8.6.1 General .27

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8.6.2 Needs of different process roles, addressed by and
. 28
8.6.3 Needs of different applications, addressed by and
. 28
8.6.4 Different levels of and within χMCF data
model . 28
9 0D connections . .29
9.1 Generic definitions . 29
9.1.1 Identification . 29
9.1.2 Location . 30
9.1.3 Direction . 30
9.1.4 Type specification .31
9.2 Spot welds .31
9.2.1 General .31
9.2.2 Attribute diameter . .32
9.2.3 Attribute technology .32
9.3 Robscans .
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