Seminar on Adhesion mechanics of atomically thin materials

27 Mar 2023 12.30 PM - 01.30 PM MAE Meeting Room B (Blk N3-02b-65) Current Students, Public

Prof Zhaohe Dai

 Peking University, China

This seminar will be chaired by Prof Jimmy Hsia.

Seminar Abstract

Adhesion is a crucial factor to consider, particularly when dealing with slender and delicate materials. In this talk, I will specifically focus on the adhesion of atomically thin materials or 2D materials, which are extremely slender and small. Recent experiments have highlighted the significant impact of adhesion in the manipulation, transfer, cleaning, and reliability of 2D materials in practical applications. Understanding this impact requires a clear understanding of the complex interaction between adhesive and elastic forces. In this talk, I will mainly discuss this interaction using classical adhesion mechanics while decoupling the deformation of 2D materials through bending and stretching. I will also briefly touch on scenarios where elastic deformation is not significant enough, leading to the emergence of long-range features in adhesive forces that are often ignored at large scales.

Speaker’s Biography​

Zhaohe Dai is an Assistant Professor in the Department of Mechanics and Engineering Science, College of Engineering, Peking University (PKU). He received his B.Sc. degree in Theoretical and Applied Mechanics from the University of Science and Technology of China in 2013, M.S. degree in Solid Mechanics from the Institute of Mechanics in 2016, and Ph.D. in Solid Mechanics from the University of Texas at Austin in 2020. Before joining PKU in March 2022, he undertook postdoctoral research in the Mathematical Institute, University of Oxford, as a Marie Curie Fellow. His research interests are focused on the mechanics of thin films and their surfaces and interfaces.

Categories