Affiliation:
1. University of Illinois at Urbana-Champaign, Department of Theoretical and Applied Mechanics, 216 Talbot Laboratory, 104 South Wright Street, Urbana, IL 61801
Abstract
The thermoelastic properties of woven glass/epoxy substrates for multilayer circuit board applications were investigated and the influence of fabric geometry assessed. The woven fabric geometry of several commercially pressed boards was carefully characterized using optical microscopy. The elastic moduli and Poisson’s ratios were then measured in uniaxial tension, while the CTEs of the boards were measured using thermal mechanical analysis (TMA) at temperatures above and below the glass transition. Experimental data were compared to predictions from two new analytical models. One of the models, which does not use classical lamination theory, results in a significant improvement for the prediction of Poisson’s ratio and CTEs. Finally, a parametric study was performed to demonstrate the effect of fiber crimp on the properties of the fabric.
Subject
Electrical and Electronic Engineering,Computer Science Applications,Mechanics of Materials,Electronic, Optical and Magnetic Materials
Reference22 articles.
1. Bhandarkar, S., Dasgupta, A., Pecht, M., and Barker, D., 1991, “Non-Linear Thermo-Mechanical Properties of Fabric Reinforced Printed Wiring Boards,” Proceedings, 5th International SAMPE Electronics Conference, June 18–20, Society for the Advancement of Material and Process Engineering, Covina, CA, pp. 248–257.
2. Dasgupta
A.
, and BhandarkarS. M., 1994, “Effective Thermomechanical Behavior of Plain-Weave Fabric-Reinforced Composites Using Homogenization Theory,” Journal of Engineering Materials and Technology, Vol. 116, No. 1, pp. 99–105.
3. Halpin
J. C.
, JerineK., and WhitneyJ. M., 1971, “The Laminate Analogy for 2 and 3 Dimensional Composite Materials,” J. of Composite Materials, Vol. 5, pp. 36–49.
4. Ishikawa
T.
, and ChouT.-W., 1982a, “Elastic Behavior of Woven Hybrid Composites,” Journal of Composite Materials, Vol. 16, pp. 2–19.
5. Ishikawa
T.
, and ChouT.-W., 1982b, “Stiffness and Strength Behavior of Woven Fabric Composites,” Journal of Materials Science, Vol. 17, pp. 3211–3220.
Cited by
27 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献