SIST EN 2565:2014

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.SUHVNXãDQMDLuft- and Raumfahrt - Herstellen von CFK-PrüfplattenSérie aérospatiale - Préparation de panneaux à base de résine et fibres de carbone destinés à l'élaboration d'éprouvettesAerospace series - Preparation of carbon fibre reinforced resin panels for test purposes49.025.99Drugi materialiOther materialsICS:Ta slovenski standard je istoveten z:EN 2565:2013SIST EN 2565:2014en01-marec-2014SIST EN 2565:2014SLOVENSKI
STANDARD



SIST EN 2565:2014



EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 2565
August 2013 ICS 49.025.40 English Version
Aerospace series - Preparation of carbon fibre reinforced resin panels for test purposes
Série aérospatiale - Préparation de panneaux à base de résine et fibres de carbone destinés à l'élaboration d'éprouvettes
Luft- and Raumfahrt - Herstellen von CFK-Prüfplatten This European Standard was approved by CEN on 8 May 2013.
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, 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.
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COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
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B-1000 Brussels © 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 2565:2013: ESIST EN 2565:2014



EN 2565:2013 (E) 2 Contents Page Foreword .3 1 Scope .4 2 Normative references .4 3 Principle .4 4 Equipment and materials recommended for the preparation of panels by methods A and B .4 5 Working procedure .6 6 Report of preparation of test panel .7
SIST EN 2565:2014



EN 2565:2013 (E) 3 Foreword This document (EN 2565:2013) has been prepared by the Aerospace and Defence Industries Association of Europe - Standardization (ASD-STAN). After enquiries and votes carried out in accordance with the rules of this Association, this Standard has received the approval of the National Associations and the Official Services of the member countries of ASD, prior to its presentation to CEN. 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 February 2014, and conflicting national standards shall be withdrawn at the latest by February 2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent rights. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: 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 the United Kingdom. SIST EN 2565:2014



EN 2565:2013 (E) 4 1 Scope This European Standard describes the preparation of panels with any desired fibre orientation of unidirectional orientated carbon fibre or fabric with thermosetting resins. The purpose of this standard is to describe recommended processes for the preparation of the panels from which test specimens subsequently are machined. Standard specimens prepared in this manner may be used either for evaluating the components i.e. the carbon reinforcement, finishes, resins, catalysts, curing agents, etc. or for verifying the overall quality of the finished products. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. EN 2564, Aerospace series — Carbon fibre laminates — Determination of the fibre-, resin- and void contents EN 2743, Aerospace series — Fibre reinforced plastics — Standard procedures for conditioning prior to testing unaged materials 3 Principle Preparation of the laminates or panels by one of the following methods: 3.1 Method A (wet lay-up technique) The carbon fibre reinforcement impregnated with liquid resin containing a suitable catalyst or curing agent is moulded under conditions of temperature and pressure appropriate for the resin and curing system. 3.2 Method B (prepreg) The carbon fibre reinforcement impregnated with resin (prepreg) is moulded under conditions of temperature higher than room temperature and pressures appropriate for the resin system. 4 Equipment and materials recommended for the preparation of panels by methods A and B 4.1 Equipment 4.1.1 Press of any hydraulic or mechanical type, with the following requirements: a) Temperature measuring and controlling devices to maintain the curing temperature between the specified limits. b) Moulding force with an accuracy of 5 % over the period of time required for curing of the resin. c) The pressing tool 1 (see Figure 1) consists of frame (1), ram (2) and base (3). The height of the frame shall be large enough to provide a moulding chamber where the reactive resin composition can be put in place in one operation. By means of appropriately constructed guides, e.g. centering pins (4), a gap between the ram and the frame of 0,20 mm minimum shall be ensured. SIST EN 2565:2014



EN 2565:2013 (E) 5 d) The tool 2 (see Figure 2) consists of two flat plates, which shall be guided only at the four corners (open pressing tool). By placing distance pieces between the guides, a specific thickness of the test panel can be obtained.
4.1.2 Autoclave of any dry heat type with the following requirements: a) as 4.1.1 (a); b) a heat up speed of at least 3 °C/min; c) capable of maintaining the required pressure to an accuracy of 10 kPa over the period of time required for curing of the resin; d) vacuum pumps capable of applying a vacuum equal to at least 80 kPa. 4.1.3 Ruler for measuring length and width to an accuracy of 0,5 mm 4.1.4 Micrometer screw type with an accuracy of 0,01 mm for measuring the thickness
4.1.5 Balance with an accuracy of 0,01 g 4.1.6 Cutting device such as a knife with a sharp blade 4.2 Materials 4.2.1 Metal lay-up plate of 500 mm × 500 mm × 7 mm or any other suitable dimensions agreed upon between the parties concerned. 4.2.2 When necessary, metal cover plate of 300 mm × 300 mm × 7 mm or any other suitable dimensions agreed upon between the parties concerned. 4.2.3 Where required, rubber pressure retaining rings resistant to a temperature at least 20 °C higher than the actual curing temperature. 4.2.4 Release film resistant to a temperature at least 20 °C higher than the actual curing temperature, such as polyvinylfluoride (PVF), polytetrafluoroethylene (PTFE) or PTFE coated fabric. 4.2.5 When necessary, perforated release film resistant to a temperature at least 20 °C higher than the actual curing temperature, such as PTFE or PTFE coated fabric. 4.2.6 Pressure blanket material with the
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