Standard Historical Last Updated: Oct 11, 2011 Track Document
ASTM E1049-85(2005)

Standard Practices for Cycle Counting in Fatigue Analysis

Standard Practices for Cycle Counting in Fatigue Analysis E1049-85R05 ASTM|E1049-85R05|en-US Standard Practices for Cycle Counting in Fatigue Analysis Standard new BOS Vol. 03.01 Committee E08
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Significance and Use

Cycle counting is used to summarize (often lengthy) irregular load-versus-time histories by providing the number of times cycles of various sizes occur. The definition of a cycle varies with the method of cycle counting. These practices cover the procedures used to obtain cycle counts by various methods, including level-crossing counting, peak counting, simple-range counting, range-pair counting, and rainflow counting. Cycle counts can be made for time histories of force, stress, strain, torque, acceleration, deflection, or other loading parameters of interest.

Scope

1.1 These practices are a compilation of acceptable procedures for cycle-counting methods employed in fatigue analysis. This standard does not intend to recommend a particular method.

1.2 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

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Details
Book of Standards Volume: 03.01
Developed by Subcommittee: E08.04
Pages: 10
DOI: 10.1520/E1049-85R05
ICS Code: 19.060