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Proceedings Paper

Weibull analysis and window lifetime prediction: a tutorial
Author(s): Lee R. Cambrea; Daniel C. Harris; Jonathan A. Salem
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Paper 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.

Paper Details

Date Published: 14 May 2015
PDF: 12 pages
Proc. SPIE 9453, Window and Dome Technologies and Materials XIV, 94530A (14 May 2015); doi: 10.1117/12.2087410
Show Author Affiliations
Lee R. Cambrea, Naval Air Warfare Ctr. Weapons Div. (United States)
Daniel C. Harris, Naval Air Warfare Ctr. Weapons Div. (United States)
Jonathan A. Salem, NASA Glenn Research Ctr. (United States)


Published in SPIE Proceedings Vol. 9453:
Window and Dome Technologies and Materials XIV
Brian J. Zelinski; Randal W. Tustison, Editor(s)

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