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ASTM International - ASTM D4848-98(2012)

Standard Terminology Related to Force, Deformation and Related Properties of Textiles

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Organization: ASTM International
Publication Date: 1 June 2012
Status: inactive
Page Count: 6
ICS Code (Textile and leather technology (Vocabularies)): 01.040.59
ICS Code (Textiles in general): 59.080.01
scope:

1.1 This terminology standard is a compilation of definitions of technical terms related to force and deformation properties when evaluating a stress-strain curve of a textile. (See Figs. X1.1 and X1.2.) A chart showing the relationship of the basic terms is shown in Table 1. Terms that are generally understood or adequately defined in other readily available sources are not included.

1.2 For other terms associated with textiles, refer to Terminology D123.

TABLE 1 Relationship of Force and Deformation Terms

TermSymbolMathematical
Expression
Unit
LengthLmm (in.)
ExtensionΔLmm (in.)
StrainΔL/L
ElongationΔL/L × 100%
Linear densityD

1A

tex (den)
Cross-sectional
area
Amm

2 (in.2)

ForceFN (lbf)
TensionTN (lbf)
StrengthSN (lbf)
TenacityF/D

1A

mN/tex (lbf/den)

B

StressF/AN/m

2 (lbf/yd2)B

A In computers, this may be given as "LD" instead of "D1".

B For fibers, these inch-pound units are usually gf/den and gf/in.2

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