EN 17149-1:2024

SLOVENSKI STANDARD
01-junij-2024
Železniške naprave - Ocenjevanje odpornosti konstrukcije železniških vozil - 1.
del: Splošno
Railway applications - Strength assessment of rail vehicle structures - Part 1: General
Bahnanwendungen - Festigkeitsnachweis von Schienenfahrzeugstrukturen - Teil 1:
Allgemeines
Applications ferroviaires - Évaluation de la résistance des structures de véhicule
ferroviaire - Partie 1 : Généralités
Ta slovenski standard je istoveten z: EN 17149-1:2024
ICS:
45.060.01 Železniška vozila na splošno Railway rolling stock in
general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN 17149-1
EUROPEAN STANDARD
NORME EUROPÉENNE
April 2024
EUROPÄISCHE NORM
ICS 45.060.01
English Version
Railway applications - Strength assessment of rail vehicle
structures - Part 1: General
Applications ferroviaires - Évaluation de la résistance Bahnanwendungen - Festigkeitsnachweis von
des structures de véhicule ferroviaire - Partie 1 : Schienenfahrzeugstrukturen - Teil 1: Allgemeines
Généralités
This European Standard was approved by CEN on 15 January 2024.

CEN 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
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 member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies 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, Türkiye and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 17149-1:2024 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
3.1 General terms and strength related terms . 5
3.2 Material related terms . 7
3.3 Terms related to welding . 9
3.4 Static related terms . 14
3.5 Fatigue related terms . 14
4 Symbols and abbreviations . 18
5 Linear stress determination . 25
5.1 General. 25
5.2 Parent material . 25
5.3 Welded joints . 25
5.3.1 General. 25
5.3.2 Evaluation point . 26
5.4 Determination of stresses by test . 29
6 Modes of structural failure . 30
6.1 Collapse . 30
6.2 Rupture . 30
6.3 Significant permanent deformation . 30
6.4 Low cycle fatigue . 30
6.5 High cycle fatigue . 30
7 Partial factors for covering uncertainties . 30
7.1 General. 30
7.2 Partial factor for loads γ . 31
L
7.3 Partial factor for the component strength γ . 31
M
7.3.1 General. 31
7.3.2 Consequence of failure . 32
7.3.3 Degree of the validation process . 32
8 Strength assessment procedure . 32
9 Tolerances and uncertainties in respect to structural strength . 32
9.1 General. 32
9.2 Influence of manufacturing on material properties . 33
9.3 Influence of manufacturing on dimensional tolerances . 33
9.4 Loads . 33
9.5 Validation process . 33
Bibliography . 34

European foreword
This document (EN 17149-1:2024) has been prepared by Technical Committee CEN/TC 256 “'Railway
applications”, the secretariat of which is held by DIN.
This European Standard shall be given the status of a national standard, either by publication of an
identical text or by endorsement, at the latest by October 2024, and conflicting national standards shall
be withdrawn at the latest by October 2024.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document is part of the series EN 17149 Railway applications — Strength assessment of rail vehicle
structures, which consists of the following parts:
— Part 1: General
— Part 2: Static strength assessment
The following part is under preparation:
— Part 3: Fatigue strength assessment based on cumulative damage
This document has been prepared under a mandate given to CEN by the European Commission and the
European Free Trade Association.
Any feedback and questions on this document should be directed to the users’ national standards body.
A complete listing of these bodies can be found on the CEN website.
According to the CEN-CENELEC Internal Regulations, the national standards organisations of the
following countries are bound to implement this European Standard: 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, Türkiye and the United
Kingdom.
Introduction
The structural design of rail vehicle structures depends on the loads they are subject to and the
characteristics of the materials they are manufactured from. This document provides the basic procedure
and criteria to enable a strength assessment to be undertaken.
This document does not specify load cases and does not specify in which cases or for which kinds of rail
vehicles a strength assessment is to be applied.

1 Scope
This document supports the other standards in the EN 17149 series, in order to ensure consistency of
terminology across the series. It describes the basic terms and definitions as well as general procedures
for strength assessments of rail vehicle structures that are manufactured, operated and maintained in
accordance with standards valid for rail system applications.
This document is applicable to all kinds of rail vehicles.
The assessment procedure is restricted to ferrous materials and aluminium.
This document does not define design load cases.
This document is not applicable for corrosive conditions or elevated temperature operation in the creep
range.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 17149-2:2024, Railway applications — Strength assessment of rail vehicle structures — Part 2: Static
strength assessment
EN 17149-3:— , Railway applications — Strength assessment of rail vehicle structures — Part 3: Fatigue
strength assessment based on cumulative damage
EN 17343:2023, Railway applications — General terms and definitions
ISO/TR 25901-1:2016, Welding and allied processes — Vocabulary — Part 1: General terms
3 Terms and definitions
For the purposes of this document, the terms and definitions, symbols and abbreviations given in
ISO/TR 25901-1:2016, EN 17343:2023 and the following terms and definitions, symbols and
abbreviations apply.
ISO and IEC maintain terminological databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at https://www.electropedia.org/
3.1 General terms and strength related terms
3.1.1
rail vehicle structure
combination of all load carrying parts of a rail vehicle including its substructures and components
3.1.2
corrosive condition
condition in which an operation in corrosive environment causes effects on the material strength values
or loss of material
Under preparation. Stage at the time of publication prEN 17149-3:2023.
Note 1 to entry: It is presupposed that in railway applications an adequate corrosion protection avoids corrosive
conditions for the structure. Corrosive conditions are therefore out of the scope of this document.
3.1.3
finite element analysis
FEA
numerical method for obtaining approximate solutions of partial differential equations subject to
boundary conditions
Note 1 to entry: Finite element analysis is a kind of numerical calculation.
[SOURCE: ISO 18459:2015, 3.6, modified – Note 1 to entry has been changed.]
3.1.4
partial factor
factor considering uncertainties of loads (forces), material, model, geometry, manufacturing, degree of
validation or a combination of these
Note 1 to entry: In some of the referenced documents, the partial factor is described with terms as “safety factor”
as in EN 12663 series and EN 1
...