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Meeting 2021 TMS Annual Meeting & Exhibition
Symposium Design and Manufacturing Approaches for the Next Generation of Sustainable Materials: The 2021 Student-led Symposium (Invited Abstracts Only)
Presentation Title Challenges in optimizing structural metamaterials
Author(s) Brad L. Boyce, Anthony Garland, Benjamin White, Ryan Alberdi
On-Site Speaker (Planned) Brad L. Boyce
Abstract Scope Lattice metamaterials have been shown to exhibit several beneficial properties, ranging from structural lightweighting to acoustic damping. Now, with the proliferation and maturation of additive manufacturing technologies, such structures are becoming more accessible and cost-effective. However, to best use metamaterials to their fullest extent, several challenges must still be addressed. During manufacturing, residual stress and warpage, location-dependent microstructure, orientation-dependent surface roughness and lack-of-fusion porosity all remain outstanding challenges. Design optimization methods rarely consider these manufacturability tradeoffs. Furthermore, existing topology optimization algorithms generally can only address linear problems such as elastic behavior, while nonlinear optimization of elastoplastic behavior and fracture resistance is only recently emerging. Finally, the computational expense of finite element representations for large-scale lattice structures requires innovative approaches, typically in the form of reduced order models. We will explore the use of convolutional neural networks, which provides one potential path to address several of these issues simultaneously.
Proceedings Inclusion? Planned:
Keywords Additive Manufacturing, Mechanical Properties, Other

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing of High Temperature Materials: New Alloys and Sustainability Considerations
Challenges in optimizing structural metamaterials
Creating new green jobs starts at the product design stage
Genomic Computational Design: Materials for Sustainability
III-V photovoltaic substrate reuse and recycle strategies for reduced cost and improved materials utilization
Lithium-Ion Battery Recycling Research at the ReCell Center
Materials Innovations Towards Decarbonization of Industrial Processes
Microstructural Development and Powder Feedstock Recyclability in Additive Manufacturing by Laser Powder Bed Fusion
Reducing CO2 Emissions Through Improvements in the Materials Science of Fossil Fuels
Research requirements for sustainable materials
Research with a Sustainable Materials Science and Engineering Approach
Shaping a Sustainable World Together – Delivering Novelis’ Commitment to Sustainability
Stepwise approach to improving lead furnace operation through pilot scale studies and computational modeling
Using rapid alloy prototyping to investigate the effects of increased levels of residual elements from recycled scrap on DP800 steel

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