Analytical models have been established to study the lateral buckling of interconnects under shear in a noncoplanar mesh design for stretchable electronics. Analytical expressions are obtained for the critical load and buckling shape at the onset of buckling by solving the equilibrium equations. The postbuckling behavior is studied by energy minimization of the potential energy, including up to fourth power of the displacement. A simple expression of the amplitude characterizing the deformation after buckling is obtained. These results agree well with the finite element simulations without any parameter fitting. The models in this paper may provide a route to study complex buckling modes of interconnects, such as diagonal compression/stretching involving both compression and shear.
Lateral Buckling of Interconnects in a Noncoplanar Mesh Design for Stretchable Electronics
Coral Gables, FL 33146
Evanston, IL 60208;
Center for Mechanics and Materials,
Beijing 100084, China
Manuscript received October 26, 2012; final manuscript received November 19, 2012; accepted manuscript posted November 22, 2012; published online May 23, 2013. Editor: Yonggang Huang.
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Chen, C., Tao, W., Su, Y., Wu, J., and Song, J. (May 23, 2013). "Lateral Buckling of Interconnects in a Noncoplanar Mesh Design for Stretchable Electronics." ASME. J. Appl. Mech. July 2013; 80(4): 041031. https://doi.org/10.1115/1.4023036
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