ASTM C1836-2016 Standard Classification for Fiber Reinforced Carbon-Carbon Composite Structures《纤维增强碳-碳复合结构的标准分类》.pdf
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1、Designation: C1836 16Standard Classification forFiber Reinforced Carbon-Carbon Composite Structures1This standard is issued under the fixed designation C1836; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revisio
2、n. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This classification covers fiber reinforced carbon-carbon(C-C) composite structures (flat plates, rectangular bars, roundrods, and
3、 tubes) manufactured specifically for structural com-ponents. The carbon-carbon composites consist of carbon/graphite fibers (from PAN, pitch, or rayon precursors) in acarbon/graphite matrix produced by liquid infiltration/pyrolysis or by chemical vapor infiltration, or both.1.2 The classification s
4、ystem provides a means of identify-ing and organizing different C-C composites, based on the fibertype, architecture class, matrix densification, physicalproperties, and mechanical properties. The system provides atop-level identification system for grouping different types ofC-C composites into dif
5、ferent classes and provides a means ofidentifying the general structure and properties of a given C-Ccomposite. It is meant to assist the ceramics community indeveloping, selecting, and using C-C composites with theappropriate composition, construction, and properties for aspecific application.1.3 T
6、he classification system produces a classification codefor a given C-C composite, which shows the type of fiber,reinforcement architecture, matrix type, fiber volume fraction,density, porosity, and tensile strength and modulus (roomtemperature).1.3.1 For example, Carbon-Carbon Composites Classifica-
7、tion Code, C3-A2C-4C2*-32classification of a carbon-carbon composite material/component (C3) with PAN basedcarbon fiber (A)ina2D(2) fiber architecture with a CVI matrix(C), a fiber volume of 45 % (4), a bulk density of 1.5 g/cc (C),an open porosity less than 2 % (2*), an average ultimate tensilestre
8、ngth of 360 MPa (3), and an average tensile modulus of 35GPa (2).1.4 This classification system is a top level identificationtool which uses a limited number of composite properties forhigh level classification. It is not meant to be a complete,detailed material specification, because it does not co
9、ver thefull range of composition, architecture, physical, mechanical,fabrication, and durability requirements commonly defined in afull design specification. Guide C1783 provides extensive anddetailed direction and guidance in preparing a complete mate-rial specification for a given C-C composite co
10、mponent.1.5 UnitsThe values stated in SI units are to be regardedas standard. No other units of measurement are included in thisstandard.1.6 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to e
11、stablish appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.2. Referenced Documents2.1 ASTM Standards:2C242 Terminology of Ceramic Whitewares and RelatedProductsC559 Test Method for Bulk Density by Physical Measure-ments of Manufactured C
12、arbon and Graphite ArticlesC709 Terminology Relating to Manufactured Carbon andGraphiteC838 Test Method for Bulk Density of As-ManufacturedCarbon and Graphite ShapesC1039 Test Methods for Apparent Porosity, Apparent Spe-cific Gravity, and Bulk Density of Graphite ElectrodesC1198 Test Method for Dyna
13、mic Youngs Modulus, ShearModulus, and Poissons Ratio for Advanced Ceramics bySonic ResonanceC1259 Test Method for Dynamic Youngs Modulus, ShearModulus, and Poissons Ratio for Advanced Ceramics byImpulse Excitation of VibrationC1275 Test Method for Monotonic Tensile Behavior ofContinuous Fiber-Reinfo
14、rced Advanced Ceramics withSolid Rectangular Cross-Section Test Specimens at Am-bient TemperatureC1773 Test Method for Monotonic Axial Tensile Behaviorof Continuous Fiber-ReinforcedAdvanced Ceramic Tubu-lar Test Specimens at Ambient Temperature1This classsfication is under the jurisdiction of ASTM C
15、ommittee C28 onAdvanced Ceramics and is the direct responsibility of Subcommittee C28.07 onCeramic Matrix Composites.Current edition approved Feb. 1, 2016. Published March 2016. DOI: 10.1520/C1836-162For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service
16、 at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1C1783 Guide for Development of Specifications fo
17、r FiberReinforced Carbon-Carbon Composite Structures forNuclear ApplicationsD3878 Terminology for Composite MaterialsD4850 Terminology Relating to Fabrics and Fabric TestMethodsD6507 Practice for Fiber Reinforcement Orientation Codesfor Composite MaterialsE6 Terminology Relating to Methods of Mechan
18、ical TestingE111 Test Method for Youngs Modulus, Tangent Modulus,and Chord ModulusE1309 Guide for Identification of Fiber-ReinforcedPolymer-Matrix Composite Materials in Databases (With-drawn 2015)33. Terminology3.1 General DefinitionsMany of the terms in this classi-fication are defined in the term
19、inology standards for graphitearticles (C709), composite materials (D3878), fabrics andfabric test methods (D4850), and mechanical testing (E6).3.1.1 apparent porosity, nthe volume fraction of all pores,voids, and channels within a solid mass that are interconnectedwith each other and communicate wi
20、th the external surface,and thus are measurable by gas or liquid penetration. (Syn-onym open porosity) C2423.1.2 braided fabric, na woven structure produced byinterlacing three or more ends of yarns in a manner such thatthe paths of the yarns are diagonal to the vertical axis of thefabric.3.1.2.1 Di
21、scussionBraided structures can have 2D or 3Darchitectures. D48503.1.3 bulk density, nthe mass of a unit volume of materialincluding both permeable and impermeable voids. C5593.1.4 fabric, nin textiles, a planar structure consisting ofyarns or fibers. D48503.1.5 fiber, na fibrous form of matter with
22、an aspect ratio10 and an effective diameter 2200C regardless of any resultantcrystallinity. The use of the term graphitization without report-ing confirmation of long range three dimensional crystallo-graphic order determined by diffraction studies should beavoided, as it can be misleading. C7093.1.
23、10 hybrid, nfor composite materials, containing atleast two distinct types of matrix or reinforcement. Each matrixor reinforcement type can be distinct because of its (a) physicalor mechanical properties, or both, (b) material form, or (c)chemical composition. D38783.1.11 knitted fabric, na fiber st
24、ructure produced by inter-looping one or more ends of yarn or comparable material.D48503.1.12 laminate, nany fiber- or fabric-reinforced compos-ite consisting of laminae (plies) with one or more orientationswith respect to some reference direction. D38783.1.13 lay-up, na process or fabrication invol
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