Standard Terminology Relating to Fatigue and Fracture Testing

SCOPE
1.1 This terminology contains definitions, definitions of terms specific to certain standards, symbols, and abbreviations approved for use in standards on fatigue and fracture testing. The definitions are preceded by two lists. The first is an alphabetical listing of symbols used. (Greek symbols are listed in accordance with their spelling in English.) The second is an alphabetical listing of relevant abbreviations.
1.2 This terminology includes Annex A1 on Units and Annex A2 on Designation Codes for Specimen Configuration, Applied Loading, and Crack or Notch Orientation.

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Status
Historical
Publication Date
31-Jul-2007
Technical Committee
Drafting Committee
Current Stage
Ref Project

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ASTM E1823-07a - Standard Terminology Relating to Fatigue and Fracture Testing
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: E 1823 – 07a
Standard Terminology
1
Relating to Fatigue and Fracture Testing
This standard is issued under the fixed designation E1823; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope E561 Test Method for K-R Curve Determination
E602 Test Method for Sharp-Notch Tension Testing with
1.1 This terminology contains definitions, definitions of
Cylindrical Specimens
terms specific to certain standards, symbols, and abbreviations
E604 Test Method for Dynamic Tear Testing of Metallic
approved for use in standards on fatigue and fracture testing.
Materials
The definitions are preceded by two lists. The first is an
E606 Practice for Strain-Controlled Fatigue Testing
alphabetical listing of symbols used. (Greek symbols are listed
E647 Test Method for Measurement of Fatigue Crack
in accordance with their spelling in English.)The second is an
Growth Rates
alphabetical listing of relevant abbreviations.
E739 Practice for Statistical Analysis of Linear or Linear-
1.2 This terminology includes Annex A1 on Units and
ized Stress-Life ( S-N) and Strain-Life (e-N) Fatigue Data
AnnexA2 on Designation Codes for Specimen Configuration,
E740 Practice for Fracture Testing with Surface-Crack
Applied Loading, and Crack or Notch Orientation.
Tension Specimens
2. Referenced Documents
E813 Test Method for JIc, A Measure of Fracture Tough-
2
ness
2.1 ASTM Standards:
E992 Practice for Determination of Fracture Toughness of
E6 Terminology Relating to Methods of Mechanical Test-
Steels Using Equivalent Energy Methodology
ing
E1049 Practices for Cycle Counting in Fatigue Analysis
E23 Test Methods for Notched Bar Impact Testing of
E1152 Test Method for Determining-J-R-Curves
Metallic Materials
E1221 Test Method for Determining Plane-Strain Crack-
E28 Test Methods for Softening Point of Resins Derived
Arrest Fracture Toughness, K , of Ferritic Steels
Ia
from Naval Stores by Ring-and-Ball Apparatus
E1290 Test Method for Crack-Tip Opening Displacement
E208 Test Method for Conducting Drop-Weight Test to
(CTOD) Fracture Toughness Measurement
Determine Nil-DuctilityTransitionTemperature of Ferritic
E1291 Test Method for Conducting a Saturated Vapor
Steels
Inhalation Study with Rats
E338 Test Method of Sharp-Notch Tension Testing of
E1304 Test Method for Plane-Strain (Chevron-Notch)
High-Strength Sheet Materials
Fracture Toughness of Metallic Materials
E399 Test Method for Linear-Elastic Plane-Strain Fracture
E1457 Test Method for Measurement of Creep Crack
Toughness K of Metallic Materials
Ic
Growth Times in Metals
E436 Test Method for Drop-Weight Tear Tests of Ferritic
E1681 Test Method for Determining Threshold Stress In-
Steels
tensity Factor for Environment-Assisted Cracking of Me-
E467 Practice for Verification of Constant Amplitude Dy-
tallic Materials
namic Forces in an Axial Fatigue Testing System
E1737 TestMethodforJ-IntegralCharacterizationofFrac-
E468 Practice for Presentation of Constant Amplitude Fa-
3
ture Toughness (Discontinued 1998)
tigue Test Results for Metallic Materials
E1820 Test Method for Measurement of Fracture Tough-
ness
1
ThisterminologyisunderthejurisdictionofASTMCommitteeE08onFatigue E1921 Test Method for Determination of Reference Tem-
and Fracture and is the direct responsibility of Subcommittee E08.02 on Standards
perature, T , for Ferritic Steels in the Transition Range
o
and Terminology.
E2472 Test Method for Determination of Resistance to
Current edition approved Aug. 1, 2007. Published August 2007. Originally
Stable Crack Extension under Low-Constraint Conditions
approved in 1996. Last previous edition approved in 2007 as E1823–07.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
Standards volume information, refer to the standard’s Document Summary page on
3
the ASTM website. Withdrawn.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

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E 1823 – 07a
G15 Terminology Relating to Corrosion and Corrosion
Symbol Term
Testing
S specimen span
S force amplitude
a
3. Terminology
S fatigue limit
f
S mean force
m
3.1 AlphabeticalListingofPrincipalSymbolsUsedinThis
S fatigue strength at N cycles
N
Terminology:
s crack strength
c
s nominal (net-section) stress
N
s residual strength
Symbol Term
r
s sharp-notch strength
a crack depth, crack length, crack size, estimated crack s
size s tensile strength
TS
s , s , s normal stresses (refer to )
a effective crack size
e x y z
s effective
...

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