ASTM-E739 2010

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E739-10 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	2010	7

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Category: ASTM

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Description

ASTM E739-10

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/E0739-10

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
6	Other Statistical Analyses
7	REFERENCES

Additional information

Standard Title	E739-10 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	2010
Pages Count	7