Journal Published Online: 12 November 2007
Volume 36, Issue 2

Formulas for Product Strength Modeling



The concept of stress strength inference plays an important role in modeling problems with respect to testing and evaluation of products. The lifetime failure rate of a product can be expressed by the probability FR=Pr(X2<X1), where X1 and X2 are some random variables representing the lifetime maximum stress and the strength of the product. In this note, we derive a comprehensive collection of formulas for FR by assuming the most commonly known models for X1 and X2. We feel that this work could serve as a useful reference for product strength modeling.

Author Information

Nadarajah, Saralees
University of Manchester, Manchester, UK
Kotz, Samuel
George Washington University, Washington, DC
Pages: 6
Price: $25.00
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Stock #: JTE100970
ISSN: 0090-3973
DOI: 10.1520/JTE100970