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USACM Large-Scale TTA Early-Career Colloquium (virtual)
Wednesday, February 02, 2022, 1:00 PM - 2:00 PM CDT
Category: Events

USACM Large-Scale TTA Early-Career Colloquium (virtual)

Optimal Design and Manufacture of Architected Fiber Reinforced Composites

Narasimha Boddeti
Washington State University

 

Abstract

Fiber reinforced composites (FRCs) are important advanced materials that are widely used in aerospace, naval and construction industries. FRCs possess a simple microstructure characterized by the fiber modulus, orientation, aspect ratio and volume fraction. Through deliberate variation of these microstructural parameters, a desired effective material response can be architected into the structure leading to an efficient use of the material and superior structural performance (i.e., lighter weight, stiffer, stronger, and tougher composites) akin to natural materials such as wood and bone. Advances in manufacturing technologies such as material extrusion additive manufacturing and automated fiber placement are now enabling the realization of such complex spatial variation of fiber-based microstructures. However, most design approaches either do not take complete advantage of this extended design freedom or fail to take fabrication constraints into account. We developed a novel design to manufacture framework that combines efficient design synthesis for architected composite structures via multiscale topology optimization and process planning for fabrication through novel computational geometry algorithms. Our approach enables design of complex, optimized composite shell structures and can be adapted to various manufacturing methods.

Biography

Narasimha (Na-ra-sim-ha) is an assistant professor in the School of Mechanical and Materials Engineering. He obtained his bachelor’s degree in mechanical engineering from IIT, Kharagpur, India (2002-2006) and doctoral degree from University of Colorado, Boulder, USA (2009-2014). He was a postdoctoral scholar at CU Boulder and Singapore University of Technology and Design before joining WSU in 2020. His PhD research focused on adhesion mechanics of graphene while his current research focuses on developing design automation methods for additive manufacturing. His research interests include topology optimization, additive manufacturing, computational mechanics, architected materials, and soft robotics.

Sponsored by USACM Technical Thrust Area on Large Scale Structural Systems and Optimal Design.
Contact for information about the seminar: [email protected]

 

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