Micromechanical method to predict fatigue life of solder

A. Zubelewicz, Q. Guo, E. C. Cutiongco, M. E. Fine, L. M. Keer, A. Zubelewicz

Research output: Contribution to journalArticle

14 Scopus citations

Abstract

Fatigue lifetimes of low-tin high-lead and tin-lead eutectic solders under total strain controlled tension-tension tests were studied in this paper. Based on the stress and strain micro-macro correlations, a modified Coffin-Manson law is obtained. The modified lifetime prediction formulas which had been used to predict the fatigue lifetime for low-tin high-lead solder, exhibiting cyclic hardening and then saturation, was found to apply to the eutectic solder, where substantial cyclic softening has been observed. This micromechanically based approach allows one to model the known physical phenomena in solders by modifying the appropriate parameters in the predictive micromechanically based constitutive equations.

Original languageEnglish (US)
Pages (from-to)179-182
Number of pages4
JournalJournal of Electronic Packaging, Transactions of the ASME
Volume112
Issue number2
DOIs
StatePublished - Jun 1990

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Mechanics of Materials
  • Computer Science Applications
  • Electrical and Electronic Engineering

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