ASTM E1823-2012d Standard Terminology Relating to Fatigue and Fracture Testing.pdf
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1、Designation:E182312c Designation: E1823 12dStandard TerminologyRelating to Fatigue and Fracture Testing1This standard is issued under the fixed designation E1823; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last rev
2、ision. 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 terminology contains definitions, definitions of terms specific to certain standards, symbols, and abbreviationsapproved
3、for use in standards on fatigue and fracture testing. The definitions are preceded by two lists. The first is an alphabeticallisting of symbols used. (Greek symbols are listed in accordance with their spelling in English.) The second is an alphabeticallisting of relevant abbreviations.1.2 This termi
4、nology includes Annex A1 on Units and Annex A2 on Designation Codes for Specimen Configuration, AppliedLoading, and Crack or Notch Orientation.2. Referenced Documents2.1 ASTM Standards:2E6 Terminology Relating to Methods of Mechanical TestingE23 Test Methods for Notched Bar Impact Testing of Metalli
5、c MaterialsE28 Test Methods for Softening Point of Resins Derived from Naval Stores by Ring-and-Ball ApparatusE208 Test Method for Conducting Drop-Weight Test to Determine Nil-Ductility Transition Temperature of Ferritic SteelsE338 Test Method of Sharp-Notch Tension Testing of High-Strength Sheet Ma
6、terialsE399 Test Method for Linear-Elastic Plane-Strain Fracture Toughness KIcof Metallic MaterialsE436 Test Method for Drop-Weight Tear Tests of Ferritic SteelsE467 Practice for Verification of Constant Amplitude Dynamic Forces in an Axial Fatigue Testing SystemE468 Practice for Presentation of Con
7、stant Amplitude Fatigue Test Results for Metallic MaterialsE561 Test Method for K-R Curve DeterminationE602 Test Method for Sharp-Notch Tension Testing with Cylindrical SpecimensE604 Test Method for Dynamic Tear Testing of Metallic MaterialsE606 Practice for Strain-Controlled Fatigue TestingE647 Tes
8、t Method for Measurement of Fatigue Crack Growth RatesE739 Practice for Statistical Analysis of Linear or Linearized Stress-Life (S-N) and Strain-Life (-N) Fatigue DataE740 Practice for Fracture Testing with Surface-Crack Tension SpecimensE813 Test Method for JIc, A Measure of Fracture ToughnessE992
9、 Practice for Determination of Fracture Toughness of Steels Using Equivalent Energy MethodologyE1049 Practices for Cycle Counting in Fatigue AnalysisE1152 Test Method for Determining-J-R-CurvesE1221 Test Method for Determining Plane-Strain Crack-Arrest Fracture Toughness, KIa, of Ferritic SteelsE129
10、0 Test Method for Crack-Tip Opening Displacement (CTOD) Fracture Toughness MeasurementE1304 Test Method for Plane-Strain (Chevron-Notch) Fracture Toughness of Metallic MaterialsE1450 Test Method for Tension Testing of Structural Alloys in Liquid HeliumE1457 Test Method for Measurement of Creep Crack
11、 Growth Times in MetalsE1681 Test Method for DeterminingThreshold Stress Intensity Factor for Environment-Assisted Cracking of Metallic MaterialsE1737 Test Method for J-Integral Characterization of Fracture ToughnessE1820 Test Method for Measurement of Fracture ToughnessE1921 Test Method for Determi
12、nation of Reference Temperature, To, for Ferritic Steels in the Transition RangeE1942 Guide for Evaluating Data Acquisition Systems Used in Cyclic Fatigue and Fracture Mechanics Testing1This terminology is under the jurisdiction of ASTM Committee E08 on Fatigue and Fracture and is the direct respons
13、ibility of Subcommittee E08.02 on Standards andTerminology.Current edition approved Sept. 1,Nov. 15, 2012. Published February 2013. Originally approved in 1996. Last previous edition approved in 2012 as E1823 12bc. DOI:10.1520/E1823-12CD.2For referencedASTM standards, visit theASTM website, www.astm
14、.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.1This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what ch
15、anges 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 versionof the standard as published by ASTM is to be considered the off
16、icial document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.E2207 Practice for Strain-Controlled Axial-Torsional Fatigue Testing with Thin-Walled Tubular SpecimensE2208 Guide for Evaluating Non-Contacting Optical Strain Measurement
17、 SystemsE2298 Test Method for Instrumented Impact Testing of Metallic MaterialsE2443 Guide for Verifying Computer-Generated Test Results Through The Use Of Standard Data SetsE2472 Test Method for Determination of Resistance to Stable Crack Extension under Low-Constraint ConditionsE2714 Test Method f
18、or Creep-Fatigue TestingE2760 Test Method for Creep-Fatigue Crack Growth TestingG15 Terminology Relating to Corrosion and Corrosion Testing3. Terminology3.1 Alphabetical Listing of Principal Symbols Used in This Terminology:Symbol Terma crack depth, crack length, crack size, estimated cracksizeaeeff
19、ective crack sizeannotch lengthaooriginal crack sizeapphysical crack sizea/W normalized crack sizeA force ratio (Pa/Pm)ANnet-section areab remaining ligamentbooriginal uncracked ligamentB specimen thicknessBeeffective thicknessBNnet thickness2c surface-crack lengthC normalized K-gradientD cycle rati
20、o (n/Nf)C*(t) C*(t) Integralda/dN fatigue-crack-growth rate crack-tip opening displacement (CTOD)d specimen gage lengtha crack extension, estimated crack extensionK stress-intensity-factor rangeKthfatigue-crack-growth thresholdP force rangeastrain amplitudeininelastic strainmmean forceG crack-extens
21、ion forceGRcrack-extension resistanceH* specimen center of pin hole distance the path of the J-integralJJ-integralJIcplane-strain fracture toughnessJRcrack-extension resistancekffatigue notch factorkttheoretical stress concentration factor (sometimes ab-breviated stress concentration factor)K, K1, K
22、2, K3,KI, KII, KIIIstress-intensity factor (see mode)Kacrack-arrest fracture toughnessKcplane-stress fracture toughnessKEACstress intensity factor threshold for environment-assisted crackingKIaplane-strain crack-arrest fracture toughnessKIEACstress intensity factor threshold for plane strainenvironm
23、ent-assisted crackingKIcplane-strain fracture toughnessKIvM, KIv, KIvjplane-strain (chevron-notch) fracture toughnessKmaxmaximum stress-intensity factorKminminimum stress-intensity factorKostress-intensity factor at crack initiationKRcrack-extension resistancen cycles enduredNffatigue lifeP forcePaf
24、orce amplitudePmmean forcePMprecrack forcePmaxmaximum forcePminminimum forceE1823 12d2Symbol Termq fatigue notch sensitivityr effective unloading slope ratiorccritical slope ratioryplastic-zone adjustmentR force ratio (Pmin/Pmax)s sample standard deviations2sample varianceS specimen spanSaforce ampl
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