ASTM-E739 2004

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E739-91(2004)e1 Standard Practice for Statistical Analysis of Linear or Linearized Stress-Life (S-N) and Strain-Life (ε-N) Fatigue Data

Published By	Publication Date	Number of Pages
ASTM	2004	7

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Description

ASTM E739-91-e1-Reapproved2004

Historical Standard: Standard Practice for Statistical Analysis of Linear or Linearized Stress-Life (S-N) and Strain-Life (ε-N) Fatigue Data

ASTM E739

Scope

1.1 This practice covers only S-N and ε-N relationships that may be reasonably approximated by a straight line (on appropriate coordinates) for a specific interval of stress or strain. It presents elementary procedures that presently reflect good practice in modeling and analysis. However, because the actual S-N or ε-N relationship is approximated by a straight line only within a specific interval of stress or strain, and because the actual fatigue life distribution is unknown, it is not recommended that ( a) the S-N or ε-N curve be extrapolated outside the interval of testing, or ( b) the fatigue life at a specific stress or strain amplitude be estimated below approximately the fifth percentile (P 0.05). As alternative fatigue models and statistical analyses are continually being developed, later revisions of this practice may subsequently present analyses that permit more complete interpretation of S-N and ε-N data.

Keywords

statistical analysis; linear; linearized; stress-life; strain-life; fatigue

ICS Code

ICS Number Code 19.060 (Mechanical testing)

DOI: 10.1520/E0739-91R04E01

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents Terminology Significance and Use
2	Types of S-N and – N Curves Considered FIG. 1
3	Test Planning Sampling Statistical Analysis (Linear Model Y = A + BX , Log-Normal Fatigue Life Distribution with Constant Variance Along the Entire Interval of X Used in Testing, No Runouts or Suspended Tests or Both, Completely Randomized Design Test Program)
4	TABLE 1
5	TABLE 2
7	Other Statistical Analyses REFERENCES

Additional information

Standard Title	E739-91(2004)e1 Standard Practice for Statistical Analysis of Linear or Linearized Stress-Life (<bdit>S-N</bdit>) and Strain-Life (<bdit>ε-N</bdit>) Fatigue Data
Published Code	ASTM
Publication Date	2004
Pages Count	7