This site uses encryption for transmitting your passwords. ratmilwebsolutions.com
Three-Parameter Weibull and Inverse Weibull Models Applied to a Combined Approach of a Sequential and an Accelerated Life Testing
Volume 10, Number 1, January 2014 - Paper 4 - pp. 31-40
DANIEL I. DE SOUZA JR. 1,3, ASSED N. HADDAD2 and DANIELE R. FONSECA11 Fluminense Fed. University, Civil Engg. Dept., Grad. Program, Niterói, RJ, BRAZIL
2 Rio de Janeiro Federal University, Civil Engineering Dept., RJ, BRAZIL
3 North Fluminense State University, Industrial Engg Dept., Campos, RJ, BRAZIL
(Received on August 28, 2013, revised on September 13, 2013)
In many situations where the amount of time available for testing is considerably less than the expected lifetime of the component, we often use accelerated life-testing. To translate test results obtained under accelerated conditions to normal using conditions, the “Maxwell Distribution Law “can be used. In this paper, a combined approach of a sequential life testing and an accelerated life testing is applied to a low alloy high-strength steel component. The underlying sampling distributions are assumed to be three-parameter Weibull and Inverse Weibull models and a linear acceleration is employed. To estimate the three parameters of both models, we use a maximum likelihood approach for censored failure data and apply truncation mechanisms developed by De Souza  for both models. An example illustrates the application of this procedure.
Please note : You will need Adobe Acrobat viewer to view the full articles.