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ISE Welcomes Jinsong Duan, Ph.D.

Development of multiscale models for advanced manufacturing: from materials to products

 

Seminar by Jinsong Duan, Ph.D.

Senior Research Engineer

Air Force Research Laboratory

Wright-Patterson Air Force Base, OH 45433

Adjunct Professor

University of Dayton, OH 45469

 

Wednesday, January 24th, 2018

4:00-5:00 pm

144 Baker Systems

1971 Neil Avenue

 

Advanced manufacturing is fundamentally changing the way we produce our products. Multi-scale models link physics models across length scale and physics domains to predict structure-property-performance and process relationship. Multi-scale models provide powerful tools in developing advanced manufacturing by reducing the cost, time to market and risk for new product development.

The talk first presents the basic concepts of multi-scale models, and demonstrates how multi-scale models work using a combined quantum mechanics and molecular dynamics model to simulate structure and dynamics in molecular liquids.

The second part of the talk discusses multi-scale models for scalable nanomanufacturing of integrated systems across length scales and materials functions.  A two-dimensional micrometer-scale slow light device, which is assembled from individual nanoparticles using self-assembly techniques, is designed and characterized with finite difference time domain method. The rest part of this section deals with theoretical study of cross-functional integration of nano-optic device. The nano-enabled optical devices o­­­pen up an avenue to develop nano-enabled high efficient integrated solar cells and information technology.

The third part of the talk focuses on multi-scale models for manufacturing of metals and alloys.  Atomistic simulation and thermodynamics modeling of defects and diffusion in Ni-base super alloys and process modeling of thermal history in continuous casting of steel are presented.

The fourth part of the talk addresses validation and uncertainty for developing reliable multi-scale models, and high-performance computing techniques for efficient numerical solutions to physics models.

The talk ends with the outlook on future research work.

 

Tags: Seminar