Accession Number:

ADA056637

Title:

Reliability-Based Scatter Factors Volume 2. Computer Manual

Descriptive Note:

Final rept. Mar 1977-Mar 1978

Corporate Author:

MODERN ANALYSIS INC RIDGEWOOD NJ

Personal Author(s):

Report Date:

1978-03-01

Pagination or Media Count:

35.0

Abstract:

A definition of scatter factor is introduced that is rational and at the same time can directly be related to the reality of aircraft design and certification as well as of the full-scale and also coupon fatigue test of structural elements or components. Specifically, the scatter factor is defined as the ratio of the MLE maximum likelihood estimate of the scale parameter of the two-parameter Weibull distribution assumedly describing the life distribution of structural elements or components, to the time to first failure among a fleet of nominally identical elements or components subjected also to nominally identical operating conditions.

Subject Categories:

  • Aircraft
  • Statistics and Probability
  • Computer Programming and Software

Distribution Statement:

APPROVED FOR PUBLIC RELEASE