Ridout, Stephen, Dusek, Milos, Bailey, Chris ORCID: 0000-0002-9438-3879 and Hunt, Chris (2005) Modeling and experiments on an isothermal fatigue test for solder joints. In: Proceedings of the 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2005. EuroSimE 2005. IEEE, Piscataway, NJ, USA, pp. 478-482. ISBN 0-7803-9062-8 (doi:https://doi.org/10.1109/ESIME.2005.1502852)

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Abstract

This paper investigates an isothermal fatigue test for solder joints developed at the NPL. The test specimen is a lap joint between two copper arms. During the test the displacement at the ends of the copper are controlled and the force measured. The modeling results in the paper show that the displacement across the solder joint is not equal to the displacement applied at the end of the specimen. This is due to deformation within the copper arms. A method is described to compensate for this difference. The strain distribution in the solder was determined by finite element analysis and compared to the distribution generated by a theoretical 'ideal' test which generates an almost pure shear mode in the solder. By using a damage-based constitutive law the shape of the crack generated in the specimen has been predicted for both the actual test and the ideal pure shear test. Results from the simulations are also compared with experimental data using SnAgCu solder.

Item Type:	Conference Proceedings
Title of Proceedings:	Proceedings of the 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2005. EuroSimE 2005
Additional Information:	[1] Presented at the sixth international conference on ‘Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems” (EuroSimE 2005), held 18-20 April 2005, Berlin, Germany. And was published in the Proceedings of the 6th International Conference on Thermal, Mechanical and Multi-Physics Simulation and Experiments in Micro-Electronics and Micro-Systems, 2005 (EuroSimE 2005).
Uncontrolled Keywords:	modeling, isothermal fatigue test, solder joints
Subjects:	Q Science > QA Mathematics T Technology > TK Electrical engineering. Electronics Nuclear engineering
Pre-2014 Departments:	School of Computing & Mathematical Sciences School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis School of Computing & Mathematical Sciences > Centre for Numerical Modelling & Process Analysis > Computational Mechanics & Reliability Group School of Computing & Mathematical Sciences > Department of Computer Systems Technology School of Computing & Mathematical Sciences > Department of Mathematical Sciences
Related URLs:	Publisher
Last Modified:	13 Mar 2019 11:32
URI:	http://gala.gre.ac.uk/id/eprint/940

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