NDLI: Constitutive Modeling of Sn/Ag and Sn/Ag/Cu Solder Alloys

Content Provider	IEEE Xplore Digital Library
Author	Min Pei Jianmin Qu
Copyright Year	2002
Description	Author affiliation: Sch. of Mech. Eng., Georgia Inst. of Technol., Atlanta, GA (Min Pei; Jianmin Qu)
Abstract	In this paper, we report some results from a recent study on developing constitutive laws suitable for Sn/Ag and Sn/Ag/Cu based solder materials. Extensive thermomechanical testing has been conducted on these lead-free solder alloys under various temperature (-55C-150C) and strain rate $(10^{-7}/s-10^{-1}/s),$ subjected to both monotonic and cyclic loading. The experimental data are then used to develop a viscoplastic constitutive model to describe the thermomechanical behavior. In addition, a neural network based computational tool has been developed and trained. The tool can be used to extract the various parameters in the constitutive model based on the experimental data. The validity and accuracy of this tool have been verified by using the Anand model on Sn/Pb eutectic solder alloy. Once trained, the tool is capable of extracting all 11 parameters in the Anand model using the experimentally obtained stress-strain curves. These parameters can then be used directly in commercial finite element software such as ANSYS or ABAQUS for solder joint reliability analysis. Using this tool, we have obtained all 11 parameters in the Anand model for Sn/Ag and Sn/Ag/Cu based solder materials
Starting Page	118
Ending Page	118
File Size	73001
Page Count	1
File Format	PDF
ISBN	1424402603
ISSN	15505723
DOI	10.1109/ISAPM.2006.1666016
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2006-03-15
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Tin Copper alloys Thermomechanical processes Data mining Conducting materials Testing Environmentally friendly manufacturing techniques Lead Temperature Capacitive sensors
Content Type	Text
Resource Type	Article

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