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论文类型：期刊论文

发表时间：2020-06-01

发表刊物：INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES

收录刊物：EI、SCIE

卷号：175

ISSN号：0020-7403

关键字：Stretchable electronics; Thin film; Thickness variation; Global-buckling; Local-folding

摘要：Thin film can either buckle globally or fold locally to assemble stretchable electronics, the variation of thickness in thin film leads to tunable structures and promises the diverse design of stretchable electronics. In this paper, theoretical models are developed to investigate the global-buckling and local-folding in the non-uniform thin film of stretchable electronics. The models are capable of giving concise and explicit analytical solutions of the deformed configuration and maximum strain in thin film. The effectiveness and accuracy of analytical solutions are verified by the finite element analyses (FEA) and molecular dynamics (MD) simulations. Our study provides useful guidance for the diverse design and precise control of stretchable electronics.