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Updated: Jan 29, 2026
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Procedure for the Transfer of Polymer Films Onto Porous Substrates with Minimized Defects
Published on: June 22, 2019
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Numerical Investigation of Dynamic Wrinkling Behaviors in Stiff-Film/PDMS-Substrate Structure.
Haohao Bi1, Wenjie Li1, Liuyun Wang1
1School of Science, Qingdao University of Technology, Qingdao 266520, China.
Polymers
|January 28, 2026
Summary
Buckling mechanics enable stretchable and stable thin film/substrate structures for flexible electronics. This study analyzes their dynamic behavior under pre-strain and substrate modulus, offering design insights.
Area of Science:
- Materials Science
- Mechanical Engineering
- Physics
Background:
- Thin film/substrate structures leverage buckling mechanics for enhanced stretchability and stability, crucial for flexible electronics.
- Flexible electronic devices face complex dynamic environments, necessitating an understanding of structural dynamic behavior.
- Checkerboard wrinkled patterns are a key configuration in designing these advanced material systems.
Purpose of the Study:
- To investigate the dynamic behavior of thin film/substrate structures with checkerboard wrinkled patterns.
- To analyze the influence of pre-strain and substrate Young's modulus on system dynamics and stability.
- To provide theoretical support for the design of two-dimensional (2D) thin film/substrate structures.
Main Methods:
- Calculated bending, membrane, and kinetic energies of the thin film, plus substrate elastic energy.
- Derived the dynamic equation using the principle of minimum energy and Lagrangian mechanics.
- Performed numerical simulations to analyze potential energy, temporal response, and stability under varying parameters.
Main Results:
- The study analyzed the effect of pre-strain and substrate Young's modulus on the potential energy function.
- Simulations revealed the temporal response of the system's dynamic behavior.
- Influences of pre-strain and substrate modulus on system stability and chaos critical value were investigated.
Conclusions:
- The research provides a theoretical framework for understanding the dynamic behavior of wrinkled thin film/substrate systems.
- Findings offer crucial insights into optimizing pre-strain and substrate properties for stable flexible electronic designs.
- This work supports the development of robust and reliable two-dimensional (2D) flexible electronic devices.
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