Weibull analysis and window lifetime prediction:  a tutorial

Lee R. Cambrea; Daniel C. Harris; Jonathan A. Salem

doi:10.1117/12.2087410

14 May 2015 Weibull analysis and window lifetime prediction: a tutorial

Lee R. Cambrea, Daniel C. Harris, Jonathan A. Salem

Proceedings Volume 9453, Window and Dome Technologies and Materials XIV; 94530A (2015) https://doi.org/10.1117/12.2087410
Event: SPIE Defense + Security, 2015, Baltimore, MD, United States

Abstract

Mechanical strength measurements of transparent ceramic window material coupons are customarily fit to a Weibull equation that describes the strength and its distribution. Predictions of window lifetime under stress are commonly based on slow crack growth parameters obtained by measuring the mechanical strength of coupons over a range of constant stress rates. This tutorial paper describes how to derive Weibull and slow crack growth parameters from strength measurements and how to use those parameters to predict window lifetime under stress. Proof testing is employed to ensure that a window begins its life with a known, minimum strength.

Citation Download Citation

Lee R. Cambrea, Daniel C. Harris, and Jonathan A. Salem "Weibull analysis and window lifetime prediction: a tutorial", Proc. SPIE 9453, Window and Dome Technologies and Materials XIV, 94530A (14 May 2015); https://doi.org/10.1117/12.2087410

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