ASTM E1749-00
(Terminology)Standard Terminology Relating to Rigid Wall Relocatable Shelters
Standard Terminology Relating to Rigid Wall Relocatable Shelters
SCOPE
1.1 This terminology covers terms and their definitions relevant to the materials and processes associated with the construction of rigid wall relocatable shelters.
General Information
Relations
Standards Content (Sample)
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An American National Standard
Designation:E1749–00
Standard Terminology Relating to
Rigid Wall Relocatable Shelters
This standard is issued under the fixed designation E 1749; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope D 2240 Test Method for Rubber Property—Durometer
Hardness
1.1 This terminology covers terms and their definitions
D 2730 MethodforSagFlowofHighlyViscousMaterials
relevant to the materials and processes associated with the
D 3167 Test Method for Floating Roller Peel Resistance of
construction of rigid wall relocatable shelters.
Adhesives
2. Referenced Documents E 492 Test Method for Laboratory Measurement of Impact
Sound Transmission Through Floor-Ceiling Assemblies
2.1 ASTM Standards:
Using the Tapping Machine
B 547/B 547M Specification for Aluminum and
E 864 Practice for Surface Preparation ofAluminumAlloys
Aluminum-Alloy Formed and Arc-Welded Round Tube
to Be Adhesively Bonded in Honeycomb Shelter Panels
C 273 TestMethodforShearPropertiesinFlatwisePlaneof
E 874 Practice forAdhesive Bonding ofAluminum Facings
Flat Sandwich Constructions or Sandwich Cores
to Nonmetallic Honeycomb Core for Shelter Panels
C 274 Terminology of Structural Sandwich Constructions
F 412 Terminology Relating to Plastic Piping Systems
C 364 Test Method for Edgewise Compressive Strength of
G 15 Terminology Relating to Corrosion and Corrosion
Flat Sandwich Constructions
Testing
C 393 TestMethodforFlexuralPropertiesofFlatSandwich
E 1925 Specification for Engineering and Design Criteria
Constructions
for Rigid Wall Relocatable Structures
C 460 Terminology for Asbestos-Cement
C 582 Specification for Contact-Molded Reinforced Ther-
3. Terminology
mosetting Plastic (RTP) Laminates for Corrosion Resistant
Equipment absolute sealing—a level of sealing that requires all seams,
D 123 Terminology Relating to Textiles slots, holes, and fasteners passing through the seal plane to
D 883 Terminology Relating to Plastics be sealed.
D 907 Terminology of Adhesives accelerated test—See test, accelerated.
D 1079 Terminology Relating to Roofing, Waterproofing, adhesive—a substance capable of holding materials together
and Bituminous Materials by means of surface attachment. D 907
D 1356 Terminology Relating to Sampling and Analysis of cold setting adhesive—an adhesive which sets at tempera-
Atmospheres tures below 20°C (68°F). D 907
D 1566 Terminology Relating to Rubber contact pressure adhesive—a resinous adhesive which is
D 1781 Test Method for Climbing Drum Peel for Adhe- aggressivelyandpermanentlytackyatroomtemperatureand
sives adheres to a variety of surfaces upon contact with a
minimum of pressure required. (Syn. pressure-sensitive
adhesives.)
This terminology is under the jurisdiction of ASTM Committee E-6 on
core splice adhesive—a film adhesive, capable of expansion
Performance of Buildings and is the direct responsibility of Subcommittee E06.53
of at least 175 % of its original thickness, used primarily to
on Materials and Processes for Durable Rigidwall Relocatable Structures.
Current edition approved April 10, 2000. Published June 2000. Originally
join or splice together two or more separate sections of core
published as E 1749–95. Last previous edition E 1749–95.
material in sandwich constructions.
Annual Book of ASTM Standards, Vol 02.02.
foamed adhesive— an adhesive, the apparent density of
Annual Book of ASTM Standards, Vol 15.03.
Annual Book of ASTM Standards, Vol 04.05.
Annual Book of ASTM Standards, Vol 08.04.
Annual Book of ASTM Standards, Vol 07.01.
7 12
Annual Book of ASTM Standards, Vol 08.01. Discontinued. See 1986 Annual Book of ASTM Standards, Vol 08.02.
8 13
Annual Book of ASTM Standards, Vol 15.06. Annual Book of ASTM Standards, Vol 04.06.
9 14
Annual Book of ASTM Standards, Vol 04.04. Annual Book of ASTM Standards, Vol 04.11.
10 15
Annual Book of ASTM Standards, Vol 11.03. Annual Book of ASTM Standards, Vol 08.04.
11 16
Annual Book of ASTM Standards, Vol 09.01. Annual Book of ASTM Standards, Vol 03.02.
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E1749–00
which has been decreased substantially by the presence of bleeder cloth—a nonstructural layer of material used in the
numerous gaseous cells dispersed throughout its mass. manufacture of composite assemblies to allow the escape of
D 907 excess gas and resin during cure.
supported film adhesive—an adhesive material incorporat-
DISCUSSION—The bleeder cloth absorbs much of the excess resin and
ing a carrier that remains in the bond when the adhesive is
is removed after the curing process and is not part of the final
employed; carrier support material is usually composed of
composite.
organic/inorganic fibers which may be in woven (knit) or
block—in a honeycomb core material, a single production unit
nonwoven (mat) form.
of honeycomb before slicing.
unsupported film adhesive—an adhesive material in film
block flow—the distance an adhesive, sealant, or coating will
form without a carrier support.
sag on a vertical surface in a given period of time. Also
adhesive, contact—an adhesive that is apparently dry to the
referred to as slump.
touch and that will adhere to itself instantaneously upon
breakout—fiber separation or break on surface plies at drilled,
contact.
machined, etc., edges.
alclad sheet and plate—compositesheet(andplate)havingon
breather—a loosely woven cloth (such as glass fabric) which
both surfaces a metallurgically bonded aluminum or alumi-
serves as a continuous vacuum path over a part but does not
num alloy coating that is anodic to the core alloy to which it
come in contact with the resin.
is bonded, thus electrolytically protecting the core alloy
bridging—spanningafeaturewithoutfullcontact,suchastape
against corrosion. B 547
or fabric spanning a radius, step, core edge, etc., or vacuum
angle ply—any filamentary lamina orientated in a direction
bagging material spanning tool or part surfaces.
other than that specified as 0° (that is, the reference axis)
brittleness—the tendency of a material to break at a very low
within a composite assembly.
strain, elongation, or deflection, and to exhibit a clean
anisotropic—not isotropic; having mechanical or physical
fracture surface with no indications of plastic deformation.
properties,orboth,thatvarywithdirectionrelativetonatural
broadgoods—non-preimpregnated or uncured preimpregnated
reference axes in a material.
materials wider than 12 in. (300 mm).
A-stage—an early stage in the reaction of certain thermoset-
ting resins in which the material is fusible and still soluble in
DISCUSSION—These include unidirectional tape (precollimated) and
woven cloths or fabrics of various constructions.
certain liquids. (Syn. resol.) (Compare with B-stage and
C-stage.)
brush coat—in sealants, a thin layer of Class A curing type
autoclave—a closed vessel for producing an environment of
sealant used alone or in conjunction with a Type B sealant.
fluid pressure, with or without heat, to an enclosed object
B-stage—an intermediate stage, in the reaction of certain
undergoing a chemical reaction or other operation.
thermosetting resins in which the material softens when
autoclave molding—a process where the lay-up or other
heatedandswellsincontactwithcertainliquids,butmaynot
assembly is covered by a vacuum bag and placed in an
entirely fuse or dissolve. The resin in an uncured thermoset-
autoclave capable of providing heat and pressure for curing
ting adhesive is usually in this stage. Sometimes referred to
the part.
as resitol. D 907
DISCUSSION—The vacuum bag is normally vented to the outside of burn rate—the rate at which a material burns after removal of
the autoclave.
the ignition heat source.
button sample—in sealants, an identified small amount of
bag molding—a method of molding or bonding involving the
sealant extruded from a mixed sealant cartridge.
application of fluid pressure, usually by means of air, steam,
carrier—See scrim.
water, or vacuum, to a flexible cover which, sometimes in
catalyst—a substance that increases the rate of a chemical
conjunction with a rigid die, completely encloses the mate-
reaction; used extensively in polymerization reactions.
rial to be bonded. (Compare with vacuum bag molding.)
caul—a sheet of material employed singly or in pairs in hot or
balanced laminate—a composite laminate in which all lami-
cold pressing of assemblies being bonded. D 907
nae occur in pairs symmetric about the midplane (but not
necessarily adjacent to each other). See symmetrical lami-
DISCUSSION—Acaulisusedtoprotecteitherthefacesoftheassembly
or the press platens, or both, against marring and staining; to prevent
nate.
sticking; to facilitate press loading; to impart a desired texture or finish;
batch—the quantity of material that has been formulated in a
and to provide uniform pressure distribution.
single continuous operation and subjected to chemical pro-
A caul may be made of any suitable material such as aluminum,
cessing or physical mixing to produce a homogeneous
stainless steel, hardboard, fiberboard, or plastic; the length and width
material.
dimensions being generally the same as those of the plates of the press
beam shear—a term describing the stresses developed in
where it is used.
planes parallel to facing planes of flat sandwich construc-
CBR—an abbreviation for chemical, biological, radiological.
tions when subjected to flatwise flexure in such a manner
chemical resistance—the ability to resist chemical attack.
that the applied moments produce curvature of the plane of
F 412
a sheet of the sandwich construction (see Test Method
C 393).
E1749–00
DISCUSSION—The attack is dependent on the method of test, and its
a material such as ceramic glaze, varnish, paint, etc., often
severity is measured by determining the changes in physical properties.
the result of exposure to sunlight, weathering, or certain
Time, temperature, stress, and reagents may all be factors that affect
solvents.
chemical resistance.
C-stage—the final stage in the reaction of certain thermoset-
CIAP—an abbreviation for corrosion inhibiting adhesive ting resins in which the material is relatively insoluble and
primer. infusible. Certain thermosetting resins in a fully cured
climbing drum peel test— See test, climbing drum peel. adhesive layer are in this stage. Sometimes referred to as
close out—enclosure of honeycomb or other core material resite. D 907
within a structure that may contain hard edges or attachment cure—to change the properties of a polymeric system into a
points, or both. morestable,usableconditionbytheuseofheat,radiation,or
cocuring—the act of curing a composite laminate and simul- reaction with chemical additives. D 883
taneously bonding it to some other hard detail during the
DISCUSSION—Cure may be accomplished, for example, by removal of
same cure cycle (for example, curing a skin laminate and
solvent or crosslinking.
bonding it to honeycomb core simultaneously).
debulking—the application of a temporary vacuum bag,
cold setting adhesive— See adhesive, cold setting.
bleeder, vacuum, or pressure, with or without heat, to
collimate—to render fibers parallel.
remove trapped air and possibly some resin, in order to
compacting—See debulking.
compact a composite lay-up. (Syn. pre-bleeding, compact-
composite, filamentary—a major form of advanced compos-
ing.)
ites in which the fiber constituent consists of continuous
degradation—damage by weakening or loss of some property,
filaments.
quality, or capability.
DISCUSSION—Filamentary composites are defined here as composite
delamination—the separation of the layers (lamina) of mate-
materials composed of laminae in which the continuous filaments are
rial in a laminate. C 582,D 883
nonwoven, parallel, uniaxial arrays. Individual uniaxial laminae are
density—weight per unit volume, usually expressed in pounds
combined into specifically oriented multiaxial laminates for application
percubicinch,poundspercubicfoot,orkilogramspercubic
to specific envelopes of strength and stiffness requirements.
metre. C 460
composite material—a material consisting of any combina-
destructive test—See test, destructive.
tion of high-strength, high-modulus fibers, whiskers, or
dry strength—See strength, dry.
particles in a homogeneous matrix.
durability—the measure of the ability of a material or struc-
compressive strength— See strength, compressive.
ture to endure and maintain its essential and distinctive
conduit—a solid or flexible tube, pipe, or channel through
characteristics of strength, resistance to decay, and appear-
which insulated electrical wires are run or through which
ance, with relation to a specific environment of use.
water or some other fluid flows.
ECA—an abbreviation for environmentally controlled area;an
contact adhesive—See adhesive, contact.
area whose temperature and humidity is controlled within
contact pressure—an imprecise term denoting the minimum
specified limits; the presence of grease, dirt, chemical
amount of pressure necessary to ensure an essentially
contaminants, etc., are excluded.
void-free area between two mating surfaces.
edge closures—structural members framing the periphery of a
controlled flow—a characteristic of a resin system with
sandwich panel providing support and a means of attach-
elevated viscosity during cure.
ment to the panel as well as an environmental seal.
core—a generally centrally located layer or composite com-
edgewise compressive strength—a term describing the load
ponent of a sandwich construction, usually low density,
carrying capacity of flat sandwich constructions when a
which separates and stabilizes the facings and transmits
compressive load is applied uniformly to each facing,
shear between them and provides most of the shear rigidity
usually defined in terms of developed facing stresses as
of the construction. C 274
compared to the yield stress of the facings (see Test Method
core compressive modulus—the ratio of the compressive load
C 364).
(below the proportional limit of the core) per unit of original
electromagnetic interference—See EMI.
area to the corresponding deformation per unit of original
electromagnetic pulse— See EMP.
thickness.
EMI—an abbreviation for electromagnetic interference;
core shear—the shear stress applied to the core material used
caused by electric and magnetic fields that emanate from a
in
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