Title :
Prognostics of thermal fatigue failure of solder joints in avionic equipment
Author :
Johansson, Jonas ; Leisner, Peter
Author_Institution :
Saab AB, Sweden
fDate :
4/1/2012 12:00:00 AM
Abstract :
A practical method has been suggested for solder joint thermal fatigue prognostics, which enables real-time fatigue calculations based on uncompressed temperature data embedded in a host system that performs safety-critical operations. The accuracy of the prognosticated remaining useful life depends on the level of details captured in the model, and the level of confidence from validation efforts.
Keywords :
aerospace components; aerospace safety; avionics; failure (mechanical); fatigue; power consumption; reliability; remaining life assessment; solders; RUL calculations; avionic equipment; host system; initial reliability calculations; low-end computer; power consumption; prognostic system; prognosticated remaining useful life; real-time fatigue calculations; safety-critical operation performance; solder joints thermal fatigue failure pronostics; uncompressed temperature data; Corrosion; Delamination; Electric breakdown; Electromigration; Fatigue; Joining processes; Soldering; Thermal analysis;
Journal_Title :
Aerospace and Electronic Systems Magazine, IEEE
DOI :
10.1109/MAES.2012.6203714
