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Meeting Materials Science & Technology 2020
Symposium Additive Manufacturing: Mechanical Behavior of Lattice Structures Produced via AM
Presentation Title Mesoscale Open Structures for Lightweight Structures
Author(s) Joseph W. Newkirk, K. Chandrashekhara
On-Site Speaker (Planned) Joseph W. Newkirk
Abstract Scope Metallic materials have desirable properties for transportation systems due to their damage tolerance, fabricability, and stiffness. However, metals by character are relatively dense. High strength and high stiffness are necessary to acceptable specific strength and stiffness values. At the macro scale, truss and other engineering structures produce lowered densities. At the microscale, metal matrix syntactic foams offer improved specific properties but suffer from significant fabrication issues. Mesoscale structures, sometimes called lattice or cellular structures, offer improved properties and can be fabricated using AM. In this talk the issues with producing high performance, reliable structures will be discussed with examples. The combination of a defect producing process such as AM and a defect sensitive structure will require significant understanding of this interaction and strategies for mitigating them.
Proceedings Inclusion? Planned: At-meeting proceedings

OTHER PAPERS PLANNED FOR THIS SYMPOSIUM

Additive Manufacturing Laser Powder Bed Fusion Optimization for Dissolvable Supports with SS 316L
Direct Metal Laser Sintering Strategies for Fabrication of Finer Resolution Cellular Structures
Effect of Processing on Micro/Mesoscale Structures and Properties of Stainless Steel 316L Lattices
High-Throughput Screening of Additive Lattices using a Deep Neural Network
Mechanical Properties of Additively Manufactured Metal Lattices
Mesoscale Open Structures for Lightweight Structures
Microstructure and Mechanical Properties of Additively Manufactured Lattice Structures of Co-Cr-Mo Alloy
Predicting Interfacial Cracking between Solid and Lattice Support Structure during Laser Powder Bed Fusion Processing
Predicting the Response of Additively Manufactured IN625 Thin-walled Elements
Process-Aware Design of Additively Manufactured Lattice Structures
Residual Stress Mitigation in Lattice Structures Built by Laser Powder Bed Fusion
Tailoring Hierarchical Material Performance Through Process Manipulation

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