Modeling of the Thermomechanical Fatigue of 63Sn-37Pb Alloy
- 1 January 1993
- book chapter
- Published by ASTM International
- p. 91-105
- https://doi.org/10.1520/stp24251s
Abstract
The stress-strain hysteresis behavior of 63Sn-37Pb solder joints in thermomechanical cycling was determined experimentally with a bimetallic loading frame for temperature excursions between — 30 and 130°C applied in triangular waveform for periods of 12, 24, 48, and 300 min. A computer simulation based on a constitutive equation previously formulated for steady-state creep conditions yielded reasonable agreement between the predicted and measured hysteresis behavior. An approximately linear relationship was found between the drop in maximum load in a hysteresis cycle and the measured fatigue cracked area.Keywords
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