简介: |
Biological materials exhibit many fascinating functions (e.g., strength, low density, self-assembly, defect tolerance, impact absorption) that take place at multiple scale levels. It is useful to decipher the mechanisms hidden behind and summarize design principles that can be helpful to improve the material function of engineering materials. In this talk, I will briefly introduce our recent progress in multiscale computational modeling of several biological materials of mechanical advantages including silks, mussel adhesion threads and cytoskeleton networks. I will demonstrate how we investigate their unique structure-mechanics relationships in a bottom-up manner. I will also discuss the opportunities of integrating computational modeling with experimental synthesis and characterizations, 3D scanning for enhancing the fast modeling capability, and 3D printing techniques for fast prototyping and interactive designs by illustrating how these different methods can work collectively and contribute to innovative designs of bio-inspired functional materials.
简介 : Dr. Zhao Qin graduated from the Department of Engineering Mechanics at Tsinghua University with Bachelor and Master Degrees in 2006 and 2008, respectively. He then went to MIT and received his PhD degree from Civil and Environmental Engineering department in 2012. After that he worked as a postdoc associate and teaching fellow. He has been working as a research scientist in the same department since 2013. His study focuses on material by design which generally covers advanced mechanical properties of nano and biological materials. By revealing how the chemical structures relate to mechanical and biological functions of biological materials via multiscale computational modeling, he designs functional materials accordingly for engineering applications. Besides computational modeling, He has strong interest in developing methods and machines for additive manufacturing of materials with complex architectures and advanced mechanical functions. He is also enthusiasm in teaching project-oriented class for undergraduate students and has actively worked toward involving K-12 students in research activities.
1. Z. Qin, et al., (2017), “The mechanics and design of a lightweight three-dimensional graphene assembly”, Science Advances, Vol 3, paper #: e1601536
2. S. Ling, Z. Qin, et al., (2017), “Design and function of biomimetic multilayer water purification membranes”, Science Advances, Vol. 3, paper #: e1601939
3. Z. Qin, et al., (2015), “Structural optimization of 3D-printed synthetic spider webs for high strength”, Nature Communications, Vol. 6, paper #: 7038
4. Z. Qin and M. J. Buehler, (2013), “Impact tolerance in mussel thread networks by heterogeneous material distribution”, Nature Communications, Vol. 4, paper #: 2187 |