Prognostics of thermal fatigue failure of solder joints in avionic equipment

Author

Johansson, Jonas ; Leisner, Peter

Author_Institution

Saab AB, Sweden

Volume

27

Issue

4

fYear

2012

fDate

4/1/2012 12:00:00 AM

Firstpage

16

Lastpage

24

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;

fLanguage

English

Journal_Title

Aerospace and Electronic Systems Magazine, IEEE

Publisher

ieee

ISSN

0885-8985

Type

jour

DOI

10.1109/MAES.2012.6203714

Filename

6203714