报告题目: Mechanical Properties of Nanomaterials through Atomistic Simulations

报告人：Hanfei Zhan, Lecturer, Queensland University of Technology

时间：2020年1月13日9:00-10:30

地点：力学楼207

Abstract. Nanotechnology has brought a grand development in a broad field of engineering in the past decades, which has enabled the design and manufacturing of devices/materials from the bottom, the inspections of observations/phenomena from the bottom. We’ve witnessed the increasing progression of additive manufacturing (e.g., 3D printing), the wide spread applications of high-performance composites and carbon fibers in replacing traditional metals/alloys to reduce the weight of machines, the increasing usage of renewable energy, and others. Focusing on the large-scale atomistic dynamics, this talk will discuss the intriguing mechanical properties of low-dimensional nanostructures (including 1D, 2D and 3D nanomaterials). Examples will be given to show how the continuum mechanics are adapted to describe the nanoscale mechanical behaviour [1-2], and how the thermal transport can be tailored at nanoscale [3-4]. Emphasis will then be put on the engineering applications and perspectives of nanostructures by taking carbon-based material as an example. Discussions will cover the failure behaviours of graphene under high-speed projectile, the application of diamond nanothread as reinforcement for polymers [5], the fiber interfacial properties [6], and other engineering applications. Some perspectives regarding the computational nanomechanics will be discussed.

Reference

[1] Zhan, H., et al, Nanoscale, 2018. 10(40): p. 18961-19868.

[2] Zhan, H., et al., Nanoscale, 2016. 8(21): p. 11177-11184.

[3] Zhan, H., et al., Carbon, 2014. 77: p. 416-423.

[4] Zhan, H., et al., Carbon, 2016. 98: p. 232-237.

[5] Zhan, H., et al., Adv. Funct. Mater., 2016. 26: p. 5279-5283.

[6] Zhan, H., et al., Nat. Commun., 2017. 8: p. 14863.

Bio-info. Dr. Haifei Zhan is currently a Lecturer at Queensland University of Technology (QUT, Australia) in mechanical engineering discipline. He received his PhD degree in 2013 with Outstanding Doctoral Thesis Award from QUT. His research interests include computational nanomechanics and nanoscale thermal transport, and AI-based design of nanomaterials. Dr Zhan has published 2 invited book chapters, 63 journal articles, and 7 conference papers. His research has been published in prestigious journals (e.g., Nature Communication, Advanced Functional Materials), and featured by renowned national and international medias, such as MIT Technology Review, PHYS. ORG, and Chemistry in Australia.