This paper develops a statistically based computational method to rapidly determine stresses in flexible substrates during particle printing processes. Specifically, substrate stresses due to multiple surface particle contact sites are statistically computed by superposing point load solutions for different random particle realizations (sets of random loading sites) within a fixed feature boundary. The approach allows an analyst to rapidly determine the number of particles in a surface feature needed to produce repeatable substrate stresses, thus minimizing the deviation from feature to feature and ensuring consistent production. Three-dimensional examples are provided to illustrate the technique. The utility of the approach is that an analyst can efficiently ascertain the number of particles needed within a feature, without resorting to computationally intensive numerical procedures, such as the finite element method.
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April 2015
Research-Article
Rapid Computation of Statistically Stable Particle/Feature Ratios for Consistent Substrate Stresses in Printed Flexible Electronics
T. I. Zohdi
T. I. Zohdi
Department of Mechanical Engineering,
University of California
,Berkeley, CA 94720-1740
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T. I. Zohdi
Department of Mechanical Engineering,
University of California
,Berkeley, CA 94720-1740
Contributed by the Manufacturing Engineering Division of ASME for publication in the JOURNAL OF MANUFACTURING SCIENCE AND ENGINEERING. Manuscript received September 16, 2014; final manuscript received December 5, 2014; published online February 4, 2015. Assoc. Editor: Donggang Yao.
J. Manuf. Sci. Eng. Apr 2015, 137(2): 021019 (5 pages)
Published Online: April 1, 2015
Article history
Received:
September 16, 2014
Revision Received:
December 5, 2014
Online:
February 4, 2015
Citation
Zohdi, T. I. (April 1, 2015). "Rapid Computation of Statistically Stable Particle/Feature Ratios for Consistent Substrate Stresses in Printed Flexible Electronics." ASME. J. Manuf. Sci. Eng. April 2015; 137(2): 021019. https://doi.org/10.1115/1.4029327
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