Journal Published Online: 02 April 2009
Volume 37, Issue 4

Design of Sudden Death Tests for Estimation of a Weibull Percentile



Sudden Death Testing is a strategy for conducting life tests in which n specimens are divided into g groups each of size m (n=gm). Testing continues simultaneously on the specimens in each group until the first failure occurs in each. The testing thus results in g failures among the n specimens. It is shown how to determine the group size m so that the pth percentile of the Weibull distribution of life may be estimated with greater precision than in a conventional life test wherein n specimens are tested until the occurrence of the gth failure. Comparisons of the expected duration of the life tests in both cases are given for two combinations of g and m for four values of the Weibull shape parameter.

Author Information

McCool, John
Penn State Great Valley, Malvern, PA
Pages: 5
Price: $25.00
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Stock #: JTE101825
ISSN: 0090-3973
DOI: 10.1520/JTE101825