Optimal Stress Amplitude Selection in Estimating Median Fatigue Limits Using Small Samples

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Volume 18, Issue 2 (March 1990)

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ISSN: 0090-3973
Page Count: 8

Optimal Stress Amplitude Selection in Estimating Median Fatigue Limits Using Small Samples
Little, RE
Professor of Mechanical Engineering, The University of Michigan-Dearborn, MI

(Received 17 April 1989; accepted 7 September 1989)

Abstract

The minimum variance strategy for specimen allocation in estimating median fatigue limits using small sample sizes is explained. Its implementation using microcomputer programs to select automatically the most effective stress amplitude for testing the next specimen is discussed. Applications involving modified up-and-down tests and estimation of strength percentiles are presented. An appendix illustrates strategies effective in preliminary tests.

Keywords:
minimum variance strategy, optimum allocation of specimens, median fatigue limits, up-and-down tests, small sample up-and-down tests, statistical analysis of fatigue data

Paper ID: JTE12461J
DOI: 10.1520/JTE12461J
ASTM International is a member of CrossRef.

Author Title Optimal Stress Amplitude Selection in Estimating Median Fatigue Limits Using Small Samples Symposium , 0000-00-00 Committee D30

		Home Journals STPs Manuals Topics Subscriptions/Pricing Digital Library / Journals / Journal of Testing and Evaluation (JTE) / Citation Page Volume 18, Issue 2 (March 1990) Click here to download this paper now for $25 PDF (152K) View License Agreement ISSN: 0090-3973 Page Count: 8 Optimal Stress Amplitude Selection in Estimating Median Fatigue Limits Using Small Samples Little, RE Professor of Mechanical Engineering, The University of Michigan-Dearborn, MI (Received 17 April 1989; accepted 7 September 1989) Abstract The minimum variance strategy for specimen allocation in estimating median fatigue limits using small sample sizes is explained. Its implementation using microcomputer programs to select automatically the most effective stress amplitude for testing the next specimen is discussed. Applications involving modified up-and-down tests and estimation of strength percentiles are presented. An appendix illustrates strategies effective in preliminary tests. Keywords: minimum variance strategy, optimum allocation of specimens, median fatigue limits, up-and-down tests, small sample up-and-down tests, statistical analysis of fatigue data Paper ID: JTE12461J DOI: 10.1520/JTE12461J ASTM International is a member of CrossRef. Author Title Optimal Stress Amplitude Selection in Estimating Median Fatigue Limits Using Small Samples Symposium , 0000-00-00 Committee D30