Designation:D4848−98(Reapproved2012)StandardTerminologyRelatedtoForce,DeformationandRelatedPropertiesofTextiles1ThisstandardisissuedunderthefixeddesignationD4848;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginaladoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscriptepsilon(´)indicatesaneditorialchangesincethelastrevisionorreapproval.1.Scope1.1Thisterminologystandardisacompilationofdefini-tionsoftechnicaltermsrelatedtoforceanddeformationpropertieswhenevaluatingastress-straincurveofatextile.(SeeFigs.X1.1andX1.2.)AchartshowingtherelationshipofthebasictermsisshowninTable1.Termsthataregenerallyunderstoodoradequatelydefinedinotherreadilyavailablesourcesarenotincluded.1.2Forothertermsassociatedwithtextiles,refertoTermi-nologyD123.2.ReferencedDocuments2.1ASTMStandards:2D123TerminologyRelatingtoTextilesD1578TestMethodforBreakingStrengthofYarninSkeinFormD5344TestMethodforExtensionForceofPartiallyOri-entedYarn3.Terminologybreakfactor,n—inyarntesting,thecomparativebreakingloadofaskeinofyarnadjustedforthelineardensityoftheyarnexpressedinanindirectsystem.[D13.58]D1578breakingelongation—Seeelongationatbreak.breakingforce,n—themaximumforceappliedtoamaterialcarriedtorupture.(Comparebreakingpoint,breakingstrength.Syn.force-at-break)DISCUSSION—Materialsthatarebrittleusuallyruptureatthemaxi-mumforce.Materialsthatareductileusuallyexperienceamaximumforcebeforerupturing.breakingload—deprecatedterm.Usethepreferredtermbreakingforce.breakingpoint,n—onaforce-elongationcurve,orstress-straincurve,thepointcorrespondingwiththebreakingforceorthebreakingstressinatensiletest.(Comparebreakingforce.)breakingstrength,n—strengthexpressedintermsofbreakingforce.(Seealsobreakingforceandstrength.Syn.,strengthatbreak)breakingtenacity,n—thetenacityatthebreakingforce.(Seealsobreakingforce,tenacity.)breakingtoughness,n—toughnessuptothebreakingforceofamaterial.DISCUSSION—Breakingtoughnessisrepresentedbytheareaandthe...
