1、 Collection of SANS standards in electronic format (PDF) 1. Copyright This standard is available to staff members of companies that have subscribed to the complete collection of SANS standards in accordance with a formal copyright agreement. This document may reside on a CENTRAL FILE SERVER or INTRA
2、NET SYSTEM only. Unless specific permission has been granted, this document MAY NOT be sent or given to staff members from other companies or organizations. Doing so would constitute a VIOLATION of SABS copyright rules. 2. Indemnity The South African Bureau of Standards accepts no liability for any
3、damage whatsoever than may result from the use of this material or the information contain therein, irrespective of the cause and quantum thereof. ISBN 978-0-626-22511-7 SANS 53923:2009Edition 1EN 13923:2005Edition 1SOUTH AFRICAN NATIONAL STANDARD Filament-wound FRP pressure vessels Materials, desig
4、n, manufacturing and testing This national standard is the identical implementation of EN 13923:2005 and is adopted with the permission of CEN, rue de Stassart 36, B-1050 Brussels. Published by SABS Standards Division 1 Dr Lategan Road Groenkloof Private Bag X191 Pretoria 0001Tel: +27 12 428 7911 Fa
5、x: +27 12 344 1568 www.sabs.co.za SABS SANS 53923:2009 Edition 1 EN 13923:2005 Edition 1 Table of changes Change No. Date Scope National foreword This South African standard was approved by National Committee SABS TC 1015, Fibre-reinforced plastics products, in accordance with procedures of the SABS
6、 Standards Division, in compliance with annex 3 of the WTO/TBT agreement. This SANS document was published in August 2009. EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 13923November 2005ICS 23.020.30English VersionFilament-wound FRP pressure vessels - Materials, design,manufacturing and testing
7、Rcipients sous pression en PRV par enroulementfilamentaire - Matriaux, conception, fabrication et essaisFadengewickelte Druckbehlter aus textilfaserverstrktenKunststoffen - Werkstoffe, Konstruktion, Herstellung undPrfungThis European Standard was approved by CEN on 22 September 2005.CEN members are
8、bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the
9、Central Secretariat or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status a
10、s the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia,Slovenia, Spain
11、, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Member
12、s.Ref. No. EN 13923:2005: EEN 13923:2005 (E) 2 Contents Page Foreword 3 Introduction4 1 Scope .5 2 Normative references .5 3 Terms and definitions.5 4 Symbols and abbreviated terms 7 5 General 8 6 Materials 8 6.1 General 8 6.2 Raw materials8 6.3 Chemical resistance .9 6.4 Characteristics values for
13、calculations.9 7 Design11 7.1 General 11 7.2 The design factor 11 7.3 Permissible strain .13 7.4 Stress resultants.14 8 Design analysis method A16 8.1 General 16 8.2 Calculations.16 8.3 Prototype testing.17 9 Design analysis method B18 9.1 Calculation.18 10 Design documentation .20 11 Manufacturing
14、.20 11.1 Filament winding.20 11.2 Protective layers .21 11.3 Manufacturing specifications .22 12 Final acceptance testing.22 12.1 General 22 12.2 Acceptance testing for filament wound vessels.22 12.3 Hydrostatic pressure test.23 12.4 Test report .24 Annex A (normative) Fabrication of flat filament w
15、ound test specimens 25 Annex B (informative) Laminate Theory .27 Annex C (normative) Extrapolation method for long term behaviour.34 Annex D (informative) Calculation example 37 Annex ZA (informative) Relationship between this European Standard and the Essential Requirements of EU Directive 97/23/EC
16、 40 Bibliography.41 EN 13923:2005 (E) 3 Foreword This European Standard (EN 13923:2005) has been prepared by Technical Committee CEN/TC 210 “GRP tanks and vessels”, the secretariat of which is held by DIN. This European Standard shall be given the status of a national standard, either by publication
17、 of an identical text or by endorsement, at the latest by May 2006, and conflicting national standards shall be withdrawn at the latest by May 2006. This European Standard falls under the Pressure Equipment Directive (PED) and supports essential require-ments of this EC Directive. For relationship w
18、ith EU Directive(s), see informative Annex ZA, which is an integral part of this European Standard. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republ
19、ic, Den-mark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxem-bourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 13923:2005 (E) 4 Introduction This European Standard specifie
20、s two design methods for filament wound GRP pressure vessels. In this European Standard only the winding is considered in the calculation of the strength and the stiffness of the shell. Method A, describes the calculation of the reinforcement of the cylindrical shell and the end domes based on netti
21、ng theory. The design is verified by prototype testing. Method B, describes the calculation of the reinforcement of the cylindrical shell and the end domes based on laminate theory. The design and manufacture of filament wound GRP pressure vessels involve a number of different materials, such as res
22、ins, thermoplastics and reinforcement fibres. It is implicit that vessels conforming to this European Standard should be made only by manufacturers and operators who are competent and suitably equipped to fulfil all requirements, using materials manufactured by competent and experienced material man
23、ufacturers. This European Standard specifies stress and strain limits and the requirements for the acceptance testing. EN 13923:2005 (E) 5 1 Scope This European Standard specifies the requirements for the design including raw materials, calculation, manu-facturing including composite materials, and
24、testing of seamless Glass Reinforced Plastic (GRP) pressure vessels with protective layer, using only multi-directional filament winding, made in a factory and for use above ground and for storage and processing of fluids. This European Standard covers vessels subject to pressures below 20 MPa and t
25、emperatures between 30 C and 120 C. Excluded from this European Standard are transportation vessels, double wall vessels, vessels under nega-tive pressure, vessels which are subjected to the risk of explosion or failure of which may cause an emission of radioactivity. 2 Normative references The foll
26、owing referenced documents are indispensable for the application of this European Standard. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 13121-1:2003, GRP tanks and vessels for use a
27、bove ground Part 1: Raw materials Specification conditions and acceptance conditions EN 13121-2:2003, GRP tanks and vessels for use above ground Part 2: Composite materials Chemical resistance prEN 13121-3:2004, GRP tanks and vessels for use above ground Part 3: Design and work-manship EN ISO 527-4,
28、 Plastics Determination of tensile properties Part 4: Test conditions for isotropic and orthotropic fibre-reinforced plastic composites (ISO 527-4:1997) EN ISO 14129, Fibre-reinforced plastic composites Determination of the in-plane shear stress/shear strain response, including the in-plane shear mo
29、dulus and strength, by 45 tension test method (ISO 14129:1997) EN ISO 75-2:2004, Plastics Determination of temperature of deflection under load Part 2: Plastics and ebonite and long-fibre-reinforced composites (ISO 75-2:2004) EN ISO 75-3, Plastics Determination of temperature of deflection under loa
30、d Part 3: High-strength ther-mosetting laminates (ISO 75-3:2004) ISO 2602, Statistical interpretation of test results Estimation of the mean Confidence interval 3 Terms and definitions For the purpose of this European Standard, the following terms and definitions apply. 3.1 manufacturer organisation
31、 that manufactures the vessel in accordance with this European Standard 3.2 material manufacturer organisation that manufactures the specific material (e.g. resin, glass fibre or catalyst). The material manufac-turer may also be the “supplier” 3.3 purchaser organisation or individual that purchases
32、the vessel EN 13923:2005 (E) 6 3.4 supplier organisation that supplies materials or products to the manufacturer for use in manufacturing the vessel. The supplier may be either the material manufacturer or an intermediary 3.5 pressure vessel housing designed and built to contain fluids under pressur
33、e including its direct attachments up to the coupling point connecting it to other equipment. A vessel may be composed of more than one chamber 3.6 protective layer chemical resistant layer (CRL) or a thermoplastic lining (TPL) in accordance with Clause 4 of EN 13121-2:2003, intended to serve as a b
34、arrier against chemical attack of the structural laminate and to pre-vent leakage 3.7 pressure pressure relative to atmospheric pressure, i.e. gauge pressure. As a consequence, vacuum is designated by a negative value 3.8 maximum allowable pressure PS maximum operating pressure for which the equipme
35、nt is designed, as specified by the manufacturer. This is identical to the design pressure 3.9 maximum/minimum allowable temperature TS maximum/minimum temperature for which the equipment is designed, as specified by the manufacturer. The maximum allowable temperature is identical to the design temp
36、erature 3.10 lamina ply or layer of glass reinforced thermosetting resin 3.11 laminate composite structure consisting of one or more lamina 3.12 filament winding production technique for winding of continuous filaments of glass fibre with the specified resin system applied in a systematic manner and
37、 cured on a mandrel or other supporting structure 3.13 chemical resistant layer (CRL) protective layer in accordance with 4.3 of EN 13121-2:2003 3.14 thermoplastic lining (TPL) protective layer in accordance with 4.4 of EN 13121-2:2003 3.15 contact layer layer to increase adhesion between TPL and st
38、ructural laminate 3.16 hoop winding winding for which the fibre direction is perpendicular to the rotation axis of the vessel EN 13923:2005 (E) 7 3.17 helical winding winding for which the angle between the fibre direction and the rotation axis is not 0 or 90 3.18 prototype pressure vessel with the
39、same diameter and end domes, manufactured with the same material and winding specifications using the same manufacturing techniques as a production vessel, but used only for testing pur-poses 3.19 pigment component added to change the natural colour of the resin 4 Symbols and abbreviated terms For t
40、he purpose of this European Standard, the symbols and abbreviated terms shall be used according to Table 1. Table 1 Symbols and abbreviated terms Symbol Term Unit b width mm h height mm mffibre content by mass PS design pressure MPa pcritcritical pressure MPa r radial co-ordinate mm rpradius of pola
41、r opening mm t wall thickness mm ththickness of the helical windings mm tcthickness of the circumferential windings mm wiweight of part i of the shell N A material weakening factor A1, . A5partial design factors C shape factor Dainternal diameter of winding laminate mm E1, E modulus of elasticity in
42、 the fibre direction MPa E2modulus of elasticity perpendicular to the fibre direction MPa l length of shell mm K design factor Mffibre reinforcement content per square meter kg/m Mwwind moment on the shell Nmm Mbending moment in longitudinal direction Nmm/mm Mbending moment in circumferential direct
43、ion Nmm/mm Nstress resultant in longitudinal direction N/mm Nstress resultant in circumferential direction N/mm P probability % R radius of a end-dome mm S safety factor TSHL Tsai-Hill criterion Vffibre volume fraction winding angle fdensity of the fibre kg/m rdensity of the resin kg/m EN 13923:2005
44、 (E) 8 Table 1 (concluded) stress MPa shear stress MPa strain % nstrain normal to the fibre direction % 12Poissons ratio TS design temperature C HDT heat deflection temperature C maxmaximum allowable strain % limstrain limit % G in-plane shear modulus MPa Xtultimate longitudinal tensile strength MPa
45、 Xcultimate longitudinal compressive strength MPa Ytultimate transversal tensile strength MPa Ycultimate transversal compressive strength MPa Ssin-plane shear strength MPa 5 General The manufacturer shall obtain from the purchaser sufficient information to undertake the product design and constructi
46、on in accordance with the requirements of this European Standard: vessel volume and the vessel fluid; maximum operating pressure including the alternating pressure; maximum operating temperature including the alternating temperature; additional data shall be supplied on any stresses occurring as a r
47、esult of operation (pressures, pipe work, extremes of temperature, fluids, wind etc.), sequential filling or emptying of the vessel, the application and removal of the pressure. 6 Materials 6.1 General The composite materials, hereinafter referred to as “composites” are characterised by matrix mater
48、ials based on thermosetting resins by the quantity and order of reinforcing fibre and by the laminating or the moulding process for the protective layer and the winding process for the structural laminate. The components of composites hereinafter are referred to as “raw materials”. Raw materials acc
49、eptance con-ditions and usage conditions shall be in accordance with EN 13121-1 and the exceptions or restrictions listed in 6.2. The chemical resistance of composites shall be in accordance with EN 13121-2 and the exceptions or restrictions are listed in 6.3. 6.2 Raw materials 6.2.1 Reinforcements In the structural laminate continuous roving in accordance with 6.6 and 9.11 of EN 13121-1:2003 shall only be used. EN 13923:2005 (E) 9 In the CRL chopped strand mats in accordance with 6.3 a
