1、Designation: E1749 10E1749 18Standard Terminology Relating toRigid Wall Relocatable Shelters1This standard is issued under the fixed designation E1749; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A nu
2、mber in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.This standard has been approved for use by agencies of the U.S. Department of Defense.1. Scope1.1 This terminology covers terms and their definitions
3、 relevant to the materials and processes associated with the constructionof rigid wall relocatable shelters.1.2 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of Intern
4、ational Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B547/B547M Specification for Aluminum and Aluminum-Alloy Formed and Arc-Welded Round TubeC273C273/C273M Test Method for Shear Pro
5、perties of Sandwich Core MaterialsC274 Terminology of Structural Sandwich Constructions (Withdrawn 2016)3C364C364/C364M Test Method for Edgewise Compressive Strength of Sandwich ConstructionsC393C393/C393M Test Method for Core Shear Properties of Sandwich Constructions by Beam FlexureC460 Terminolog
6、y for Asbestos-Cement (Withdrawn 2001)3C582 Specification for Contact-Molded Reinforced Thermosetting Plastic (RTP) Laminates for Corrosion-Resistant EquipmentD123 Terminology Relating to TextilesD883 Terminology Relating to PlasticsD907 Terminology of AdhesivesD1079 Terminology Relating to Roofing
7、and WaterproofingD1356 Terminology Relating to Sampling and Analysis of AtmospheresD1566 Terminology Relating to RubberD1781 Test Method for Climbing Drum Peel for AdhesivesD2240 Test Method for Rubber PropertyDurometer HardnessD2730 Test Method for Sag Flow of Highly Viscous Materials (Withdrawn 19
8、86)3D3167 Test Method for Floating Roller Peel Resistance of AdhesivesE492 Test Method for Laboratory Measurement of Impact Sound Transmission Through Floor-Ceiling Assemblies Using theTapping MachineE631 Terminology of Building ConstructionsE864 Practice for Surface Preparation of Aluminum Alloys t
9、o Be Adhesively Bonded in Honeycomb Shelter PanelsE874 Practice for Adhesive Bonding of Aluminum Facings to Nonmetallic Honeycomb Core for Shelter PanelsE1925 Specification for Engineering and Design Criteria for Rigid Wall Relocatable StructuresF412 Terminology Relating to Plastic Piping SystemsG15
10、 Terminology Relating to Corrosion and Corrosion Testing (Withdrawn 2010)31 This terminology is under the jurisdiction of ASTM Committee E06 on Performance of Buildings and is the direct responsibility of Subcommittee E06.53 on Materialsand Processes for Durable Rigidwall Relocatable Structures.Curr
11、ent edition approved Nov. 1, 2010Oct. 1, 2018. Published December 2010November 2018. Originally approved in 1995. Last previous edition approved in 20052010as E1749 05.E174910. DOI: 10.1520/E1749-10.10.1520/E174918.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM C
12、ustomer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standardsstandards Document Summary page on the ASTM website.3 The last approved version of this historical standard is referenced on www.astm.org.This document is not an ASTM standard and is intend
13、ed only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current
14、 versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Terminology3.1 Many of the terms defined in this terminology are delineated in Terminologies C27
15、4, C460, D123, D883, D907, D1079,D1356, D1566, E631, F412, and G15.absolute sealinga level of sealing that requires all seams, slots, holes, and fasteners passing through the seal plane to be sealed.accelerated testSee test, accelerated.adhesivea substance capable of holding materials together by me
16、ans of surface attachment. D907cold setting adhesivean adhesive which sets at temperatures below 20C (68F).20 C (68 F). D907contact pressure adhesivea resinous adhesive which is aggressively and permanently tacky at room temperature and adheresto a variety of surfaces upon contact with a minimum of
17、pressure required. (Syn. pressure-sensitive adhesives.)core splice adhesivea film adhesive, capable of expansion of at least 175 % of its original thickness, used primarily to join orsplice together two or more separate sections of core material in sandwich constructions.foamed adhesivean adhesive,
18、the apparent density of which has been decreased substantially by the presence of numerousgaseous cells dispersed throughout its mass. D907supported film adhesivean adhesive material incorporating a carrier that remains in the bond when the adhesive is employed;carrier support material is usually co
19、mposed of organic/inorganic fibers which may be in woven (knit) or nonwoven (mat) form.unsupported film adhesivean adhesive material in film form without a carrier support.adhesive, contactan adhesive that is apparently dry to the touch and that will adhere to itself instantaneously upon contact.alc
20、lad sheet and platecomposite sheet (and plate) having on both surfaces a metallurgically bonded aluminum or aluminumalloy coating that is anodic to the core alloy to which it is bonded, thus electrolytically protecting the core alloy againstcorrosion. B547/B547Mangle plyany filamentary lamina orient
21、ated in a direction other than that specified as 0 (that is, the reference axis) within acomposite assembly.anisotropicnot isotropic; having mechanical or physical properties, or both, that vary with direction relative to natural referenceaxes in a material.A-stagean early stage in the reaction of c
22、ertain thermosetting resins in which the material is fusible and still soluble in certainliquids. (Syn. resol.) (Compare with B-stage and and C-stage.)autoclavea closed vessel for producing an environment of fluid pressure, with or without heat, to an enclosed object undergoinga chemical reaction or
23、 other operation.autoclave moldinga process where the lay-up or other assembly is covered by a vacuum bag and placed in an autoclave capableof providing heat and pressure for curing the part.DISCUSSIONThe vacuum bag is normally vented to the outside of the autoclave.bag moldinga method of molding or
24、 bonding involving the application of fluid pressure, usually by means of air, steam, water,or vacuum, to a flexible cover which, sometimes in conjunction with a rigid die, completely encloses the material to be bonded.(Compare with vacuum bag molding.)balanced laminatea composite laminate in which
25、all laminae occur in pairs symmetric about the midplane (but not necessarilyadjacent to each other). See symmetrical laminate.batchthe quantity of material that has been formulated in a single continuous operation and subjected to chemical processingor physical mixing to produce a homogeneous materi
26、al.beam sheara term describing the stresses developed in planes parallel to facing planes of flat sandwich constructions whensubjected to flatwise flexure in such a manner that the applied moments produce curvature of the plane of a sheet of the sandwichconstruction (see Test Method C393C393/C393M).
27、bleeder clotha nonstructural layer of material used in the manufacture of composite assemblies to allow the escape of excessgas and resin during cure.DISCUSSIONE1749 182The bleeder cloth absorbs much of the excess resin and is removed after the curing process and is not part of the final composite.b
28、lockin a honeycomb core material, a single production unit of honeycomb before slicing.block flowthe distance an adhesive, sealant, or coating will sag on a vertical surface in a given period of time. Also referred toas slump.breakoutfiber separation or break on surface plies at drilled, machined, e
29、tc., edges.breathera loosely woven cloth (such as glass fabric) which serves as a continuous vacuum path over a part but does not comein contact with the resin.bridgingspanning a feature without full contact, such as tape or fabric spanning a radius, step, core edge, etc., or vacuumbagging material
30、spanning tool or part surfaces.brittlenessthe tendency of a material to break at a very low strain, elongation, or deflection, and to exhibit a clean fracturesurface with no indications of plastic deformation.broadgoodsnon-preimpregnated or uncured preimpregnated materials wider than 12 in. (300 mm)
31、.DISCUSSIONThese include unidirectional tape (precollimated) and woven cloths or fabrics of various constructions.brush coatin sealants, a thin layer of Class A curing type sealant used alone or in conjunction with a Type B sealant.B-stagean intermediate stage, in the reaction of certain thermosetti
32、ng resins in which the material softens when heated andswells in contact with certain liquids, but may not entirely fuse or dissolve. The resin in an uncured thermosetting adhesive isusually in this stage. Sometimes referred to as resitol. D907burn ratethe rate at which a material burns after remova
33、l of the ignition heat source.button samplein sealants, an identified small amount of sealant extruded from a mixed sealant cartridge.carrierSee scrim.catalysta substance that increases the rate of a chemical reaction; used extensively in polymerization reactions.caula sheet of material employed sin
34、gly or in pairs in hot or cold pressing of assemblies being bonded. D907DISCUSSIONA caul is used to protect either the faces of the assembly or the press platens, or both, against marring and staining; to prevent sticking; to facilitatepress loading; to impart a desired texture or finish; and to pro
35、vide uniform pressure distribution.A caul may be made of any suitable material such as aluminum, stainless steel, hardboard, fiberboard, or plastic; the length and width dimensionsbeing generally the same as those of the plates of the press where it is used.CBRan abbreviation for chemical, biologica
36、l, radiological.chemical resistancethe ability to resist chemical attack. F412DISCUSSIONThe attack is dependent on the method of test, and its severity is measured by determining the changes in physical properties. Time, temperature, stress,and reagents may all be factors that affect chemical resist
37、ance.CIAPan abbreviation for corrosion inhibiting adhesive primer.climbing drum peel test See test, climbing drum peel.close outenclosure of honeycomb or other core material within a structure that may contain hard edges or attachment points,or both.cocuringthe act of curing a composite laminate and
38、 simultaneously bonding it to some other hard detail during the same curecycle (for example, curing a skin laminate and bonding it to honeycomb core simultaneously).cold setting adhesiveSee adhesive, cold setting.collimateto render fibers pactingSee debulking.E1749 183composite, filamentarya major f
39、orm of advanced composites in which the fiber constituent consists of continuous filaments.DISCUSSIONFilamentary composites are defined here as composite materials composed of laminae in which the continuous filaments are nonwoven, parallel,uniaxial arrays. Individual uniaxial laminae are combined i
40、nto specifically oriented multiaxial laminates for application to specific envelopes ofstrength and stiffness posite materiala material consisting of any combination of high-strength, high-modulus fibers, whiskers, or particles in ahomogeneous pressive strengthSee strength, compressive.conduita soli
41、d or flexible tube, pipe, or channel through which insulated electrical wires are run or through which water or someother fluid flows.contact adhesiveSee adhesive, contact.contact pressurean imprecise term denoting the minimum amount of pressure necessary to ensure an essentially void-free areabetwe
42、en two mating surfaces.controlled flowa characteristic of a resin system with elevated viscosity during cure.corea generally centrally located layer or composite component of a sandwich construction, usually low density, which separatesand stabilizes the facings and transmits shear between them and
43、provides most of the shear rigidity of the construction. C274core compressive modulusthe ratio of the compressive load (below the proportional limit of the core) per unit of original areato the corresponding deformation per unit of original thickness.core shearthe shear stress applied to the core ma
44、terial used in sandwich panel construction.core shear modulusthe ratio of the shear stress to the corresponding shear strain for stresses below the proportional limit inshear of the core.core splice adhesive See adhesive, core splice.core stabilizationa process to rigidize honeycomb core materials t
45、o prevent distortion during machining or curing.crazingthe development of a multitude of very fine cracks in a material such as ceramic glaze, varnish, paint, etc., often theresult of exposure to sunlight, weathering, or certain solvents.C-stagethe final stage in the reaction of certain thermosettin
46、g resins in which the material is relatively insoluble and infusible.Certain thermosetting resins in a fully cured adhesive layer are in this stage. Sometimes referred to as resite. D907cureto change the properties of a polymeric system into a more stable, usable condition by the use of heat, radiat
47、ion, or reactionwith chemical additives. D883DISCUSSIONCure may be accomplished, for example, by removal of solvent or crosslinking.debulkingthe application of a temporary vacuum bag, bleeder, vacuum, or pressure, with or without heat, to remove trapped airand possibly some resin, in order to compac
48、t a composite lay-up. (Syn. pre-bleeding, compacting.)degradationdamage by weakening or loss of some property, quality, or capability.delaminationthe separation of the layers (lamina) of material in a laminate. C582, D883densityweight per unit volume, usually expressed in pounds per cubic inch, poun
49、ds per cubic foot, or kilograms per cubic metre.C460destructive testSee test, destructive.dry strengthSee strength, dry.durabilitythe measure of the ability of a material or structure to endure and maintain its essential and distinctive characteristicsof strength, resistance to decay, and appearance, with relation to a specific environment of use.ECAan abbreviation for environmentally controlled area; an area whose temperature and humidity is controlled withi
