|About this Symposium
||Materials Science & Technology 2020
||Additive Manufacturing: Mechanical Behavior of Lattice Structures Produced via AM
||TMS: Additive Manufacturing Committee
TMS: Mechanical Behavior of Materials Committee
||John S. Carpenter, Los Alamos National Laboratory
Matthew Begley, University of California, Santa Barbara
Sneha Prabha Narra, Carnegie Mellon University
Michael Groeber, The Ohio State University
Isabella J. Van Rooyen, Pacific Northwest National Laboratory
Kyle L. Johnson, Sandia National Laboratories
Krishna Muralidharan, University of Arizona
||This symposium will provide a forum to discuss process-structure-property-performance relationships for additively manufactured open cell lattice structures. Additive manufacturing allows for the fabrication of complex geometries including open cell lattice structures that retain some similarities to closed cell structures like foams, but also have unique challenges. The mechanical properties of these structures are difficult to measure and provide significant challenges in analysis, from accurate measurements of strain to determining the applicable area under loading. Small feature dimensions can also lead to the breakdown of scale separation and cause significant property dependence on microstructure.
Improvements in measurement technique, witness coupon design, defect – failure mode connections, and material quality-strength connections are of interest to this symposium. Modeling efforts and topological optimization designed to inform design principles or for extracting enhanced understanding of process-structure-property-performance relationships are also of interest. The organizers view the lack of understanding of the process-structure-property-performance relationships as a key problem in making use of these lattices in structural applications.
||Planned: At-meeting proceedings