1、_SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising theref
2、rom, is the sole responsibility of the user.”SAE reviews each technical report at least every five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions.Copyright 2015 SAE InternationalAll rights reserved. No part of this publi
3、cation may be reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE.TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada)Tel: +1 724-776-4970 (out
4、side USA)Fax: 724-776-0790Email: CustomerServicesae.orgSAE WEB ADDRESS: http:/www.sae.orgSAE values your input. To provide feedbackon this Technical Report, please visithttp:/www.sae.org/technical/standards/AMS3961/1AEROSPACEMATERIAL SPECIFICATIONAMS3961/1Issued 2015-12350 F Autoclave Cure, Low Flow
5、 Toughened Epoxy Prepregs, Type 38, Class 2, Grade 193, Style 3K-70-PW, Fiber 1RATIONALEWidely distributed and available industry material specifications are required for procurement of composite materials whose allowables data is published in CMH-17. NOTICEThis report is published by SAE to advance
6、 the state of technical and engineering sciences. The use of this report is entirelyvoluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsiblility of the user. 1. SCOPEThe intent of this specification is for t
7、he procurement of the material listed on the QPL and, therefore, no qualification orequivalency threshold values are provided. Users that intend to conduct a new material qualification or equivalency program shall refer to the Quality Assurance section of the base specification, AMS3961.All material
8、 qualification and equivalency data has been archived and is available for review upon request. Contact the CMH-17 Secretariat (www.cmh17.org) for additional information.1.1 FormThis detail specification along with the base specification, AMS3961, establish the requirements for carbon fiber fabric i
9、mpregnated with a modified B-staged epoxy resin (“fabric prepreg”). The prepreg is produced using a solution coat process. 1.2 ClassificationAll Prepreg products qualified to this detail specification shall be classified per the 1.2.1.1 through 1.2.1.2.6: For Ex. Type 38, Class 2, Grade 193, Style 3
10、K-PW-70, Fiber 1, ST.1.2.1 Reinforcement:The reinforcement classification consists of the following Styles and Grades.1.2.1.1 Style shall specify the carbon fiber tow twist. For example, Style NT Never Twisted Tow.NT is the default style. When style is not specified in purchase order, Style NT shall
11、 be supplied.1.2.1.2 Grade shall specify the carbon fiber tow size (i.e., the nominal number of filaments in a tow or nominal filament count), where 1K denotes 1,000 filaments. For example, Grade 3K 3,000 filaments in a tow.SAE INTERNATIONAL AMS3961/1 Page 2 of 141.2.2 PrepregAll Prepreg products qu
12、alified to this detail specification shall be classified per 1.2.1.1 through1.2.1.2.6: For Ex. Type 38,Class 2, Grade 193, Style 3K-PW-70, Fiber 1, ST.1.2.2.1 TypeType shall specify the nominal prepreg resin content. For example: Type 38 Nominal resin content 38 percent by weight.1.2.2.2 ClassClass
13、shall specify prepreg product form. For example: Class 2 Woven carbon fiber fabric prepreg.1.2.2.3 GradeGrade shall specify nominal fiber areal weight in grams per square meter (gsm). For example: Grade 193 193 gsm nominal fiber areal weight.1.2.2.4 Style Style shall specify the woven fabric style (
14、not applicable to Class 1). For example: Style 3K-70-PW - 3k yarn, 7.0 mil nominal dry fabric thickness, plain weave.1.2.2.5 Fiber TypeThe fiber type shalle specify the fiber modulus range. For example: Fiber 1: Standard Modulus (31-35 Msi).1.2.2.6 Service Temperature CapabilityThe service temperatu
15、re capability, used to establish the batch acceptance test temperature requirements, shall be designated as follows:ST (Standard Temperature) - service temperature of -65 to 180F All batch acceptance testing shall be performed at room temperature dry (70 F 10 F).ET (Elevated Temperature) service tem
16、perature of -65 to 250 F A portion of the batch acceptance tests shall be performed at elevated temperature dry (250 F 10 F).Note: If no service temperature capability is identified in the product nomenclature, then “ST” shall be the default designation.2. APPLICABLE DOCUMENTSThe issue of the follow
17、ing documents in effect on the date of the purchase order forms a part of this specification to the extent specified herein. The supplier may work to a subsequent revision of a document unless a specific document issue is specified. When the referenced document has been cancelled and no superseding
18、document has been specified, the last published issue of that document shall apply.2.1 SAE PublicationsAvailable from SAE International, 400 Commonwealth Drive, Warrendale, PA 15096-0001, Tel: 877-606-7323 (inside USA and Canada) or +1 724-776-4970 (outside USA), www.sae.org.Base SpecificationAMS396
19、1 350 F Autoclave Cure, Low Flow Toughened Epoxy PrepregsCMH-17 Composite Materials HandbookSAE INTERNATIONAL AMS3961/1 Page 3 of 142.2 ASTM PublicationsAvailable from ASTM International, 100 Barr Harbor Drive, P.O. Box C700, West Conshohocken, PA 19428-2959, Tel: 610-832-9585, www.astm.org.ASTM D14
20、23 Standard Test Method for Twist in Yarns by Direct-CountingASTM D2344 Short-Beam Strength of Polymer Matrix Composite Materials and their Laminates ASTM D3039 Tensile Properties of Polymeric Matrix Composite MaterialsASTM D3529/D3529M Matrix Solids Content and Matrix Content of Composite PrepregAS
21、TM D3530/D3530M Volatiles Content of Composite Material PrepregASTM D3531 Standard Test Method for Resin Flow of Carbon Fiber-EpoxyASTM D3532 Gel Time of Carbon Fiber-Epoxy PrepregASTM D3776 Mass Per Unit Area (Weight) of FabricASTM D3878 Standard Terminology Composite MaterialsASTM D4018 Standard T
22、est Methods for Properties of Continuous Filament Carbon and Graphite Fiber TowsASTM D6641 Compressive Properties of Polymer Matrix Composite Laminates Using a Combined Loading Compression (CLC) Test FixtureASTM E168 General Techniques of Infrared Quantitative AnalysisASTM E1252 Standard Practice fo
23、r Obtaining Infrared Spectra for Qualitative Analysis2.3 Occupational Safety and Health Administration (OSHA) PublicationsAvailable from U.S. Department of Labor, Bureau of Labor Standards, http:/www.osha.gov/29CFR-1910.1200 Hazard Communication2.4 ISO PublicationsAvailable from American National St
24、andards Institute, 25 West 43rd Street, 4th Floor, New York, NY 10036, Tel: 212-642-4900, www.ansi.org.ISO 1890 Reinforcement yarns - Determination of twistISO 10119 Carbon fibre- Determination of densityISO 10548 Carbon fibre - Determination of size contentISO 10618 Carbon fibre Determination of te
25、nsile properties of resin-impregnated yarn2.5 Japanese Standards Association PublicationsAvailable from http:/www.jsa.or.jp/default_english.aspJIS R3912 Reinforcement yarns - Determination of twistJIS R7603 Carbon fibre- Determination of densitySAE INTERNATIONAL AMS3961/1 Page 4 of 14JIS R7604 Carbo
26、n fibre - Determination of size contentJIS R7608 Carbon fibre Determination of tensile properties of resin-impregnated yarnJIS Z7251 Labelling Of chemicals based on GHS2.6 German Institute for StandardizationAvailable from www.din.de.DIN 65382 Aerospace; reinforcement fibres for plastics; tensile te
27、st of impregnated yarn test specimensDIN 65566 Aerospace; reinforcement fibres; determination of size content of carbon filament yarns, woven fabrics and chopped strandsDIN 65569 Aerospace; reinforcement fibres; determination of density of filament yarns; hydrostatic weighing method2.7 SACMA Standar
28、dsAvailable from American Composites Manufacturers Association, 1010 North Glebe Road, Suite 450, Arlington, VA 22201, Tel: 703-525-0511, www.acmanet.org.SACMA SRM 10R-94 Calculation of Fiber Volume of Composite Test LaminatesSACMA SRM 12R-94 Lot Acceptance of Carbon FibersSACMA SRM 14R-94 SACMA Rec
29、ommended Method for Determination of Sizing Content on Carbon FibersSACMA SRM 18R-94 Glass Transition Temperature (Tg) Determination by DMA of Oriented Fiber Resin CompositesSACMA SRM 20R-94 High Performance Liquid Chromatography of Thermoset ResinsSACMA SRM 23R-94 Resin Content and Fiber Area Weigh
30、t of Thermoset Prepreg with Destructive TechniqueSACMA SRM 25R-94 Onset Temperature and Peak Temperature for Composite System Resins Using Differential Scanning Calorimetry (DSC)2.8 DefinitionsFor definitions that are not provided in this specification or other applicable AMS specifications, the def
31、initions in DOT/FAA/AR-06/10 or DOT/FAA/AR-07/3 shall apply. For definitions not provided in DOT/FAA/AR-06/10, the definitions in ASTM D3878 shall apply. For definitions not provided in ASTM D3878, the definitions in CMH-17 shall apply.BASE SPECIFICATION - A specification containing the basic requir
32、ements for a carbon or glass fiber and prepreg material system. The base specification is used in combination with a detail specification to define the unique requirements for a carbon fiber and prepreg product.CARBON OR GRAPHITE FIBER - Interchangeable terms used for continuous filament strands pro
33、duced in accordance with this specification. Typically, graphite fiber is processed at temperature above 2,000 C, all standard and intermediate modulus carbon fiber is processed below 1,600 C.CARBON FIBER LOT - See section 3.2.2.10.CARBON FIBER TOW - An untwisted, never twisted or twisted bundle of
34、continuous carbon filaments.DATE OF MANUFACTURE - The date (day or month) a lot of fiber (carbon or PAN), epoxy resin, or prepreg batch is manufactured. If the production run extends into the following month, the start date (day or month) is recorded.SAE INTERNATIONAL AMS3961/1 Page 5 of 14DETAIL SP
35、ECIFICATION - A specification containing requirements that is used in combination with a base specification to define the unique requirements for a fiber product.DOFF (noun) - All spools of fiber within a lot that are taken off the take-up winders within a given time period. A unique doff number is
36、typically assigned to the spools. However, some manufacturers do not assign doff numbers because the spools are doffed independently when they reach the correct weight during production.DOFF (verb) - To remove spools of fiber from the take-up winders.DOFF AVERAGE - The average of test results for al
37、l specimens tested from the same doff sample.DOFF SAMPLE - A fiber tow sample removed from the take-up winders in accordance with SACMA SRM 12R-94. Doff sample zero (0) is the sample taken at start-up.DOWN SPOOLING - A procedure that creates multiple spools from a single spool.FOREIGN MATERIALS - Al
38、l materials not characteristic of the product, such as materials that are not carbon fiber or not PAN fiber.NEVER TWISTED TOW - A tow that has never been twisted; denoted by the symbol “NT.”POLYACRYLONITRILE (PAN) - A polymer used as a precursor product for carbon fiber production.PAN LOT - PAN fibe
39、r manufactured in a single production run on the same equipment within a defined set of processparameters.PURCHASER - Any organization that procures product in conformance to this basic specification and its associated detail specification.QUALIFIED PRODUCT LIST (QPL) - Qualified product list establ
40、ished for a given detail material specification.RE-SPOOLING - A procedure that creates a single spool from multiple spools. Also a procedure that winds material from a single spool onto a different (sometimes smaller or larger diameter) spool.RUN - (As used in fiber production) a continuous (uninter
41、rupted) manufacturing process in which carbon fiber is produced.SIZING - A polymeric coating applied to carbon fiber tows to improve adhesion to resin systems and handling characteristics for subsequent processes (for example, weaving, or impregnation).SPLICE - A tow that has been cut or broken and
42、subsequently had the ends rejoined.MANUFACTURER - The organization manufacturing and certifying production to this specification.MANUFACTURER PRODUCT DESIGNATION - The identification or name given to the product by the manufacturer.SURFACE TREATMENT - A treatment applied to fiber to improve the bond
43、 between the fiber surface and the resin matrix in a composite material.TOW - A strand of continuous fibers carbon fibers are supplied in the form of tows. A tow can nominally contain from 500 to 48,000 carbon fiber filaments. Typical tow counts (number of filaments within a tow) are 3,000 (or 3K),
44、6,000 (or 6K), 12,000 (or 12K), and 24,000 (or 24K). Larger tows are also available but not commonly used in aerospace applications.TRANSITION MATERIAL - Material which is removed from the line during non-steady-state production because of process interruptions or start-up.TWISTED TOW - Tow with int
45、entional twist in its final form; denoted by the symbol “TT” or “ST”SAE INTERNATIONAL AMS3961/1 Page 6 of 14UNTWISTED TOW - Previously twisted tow that has had its twist removed in its final form; denoted by the symbol “UT.”WINDERS - Equipment used to collect the carbon fiber on the spool cores at t
46、he end of the carbon fiber conversion processes (end of the carbon fiber line). Also known as take-up winders.3. TECHNICAL REQUIREMENTS3.1 General RequirementsIn case of conflict between requirements of the base specification and this detail specification, requirements of this detailspecification sh
47、all govern. 3.2 Constituent Material Requirements3.2.1 Epoxy Resin SystemUp to 15% resin blending is allowed per resin batch.3.2.2 Reinforcement3.2.2.1 Carbon Fiber Tow CompositionCarbon fiber tows shall be composed of carbon filaments manufactured from (PAN) precursor. All raw material ingredients
48、and auxiliary materials used in the manufacture of carbon fibers shall be controlled by material or procurement specifications. The carbon fiber manufacturer shall ensure that the PAN manufacturer produces uniform and consistent PAN fiber precursor within the PCD control limits. These controls shall
49、 include constituent ingredients and ratios, PAN lot definition, and shelf life requirements. A fiber lot must contain 85% PAN from a single lot; blending is permitted from up to three additional PAN lots not to exceed 15% of the tows in the lot.3.2.2.2 Fiber Surface TreatmentCarbon fiber tow may be surface treated to enhance the fiber/matrix interface of the composite material. The surface treatm
