About this Abstract |
Meeting |
MS&T22: Materials Science & Technology
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Symposium
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Additive Manufacturing and Cellular/Lattice Structures: Designs, Realization and Applications
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Presentation Title |
Performance of Titanium Alloy Lattice Structures in Quasi-static and High Strain Rate Environments |
Author(s) |
John S. Carpenter, B. Brown, N.S. Johnson, Donald W. Brown, David R. Jones, Borys Drach, Jonathan W. Pegues, Manyalibo Matthews |
On-Site Speaker (Planned) |
John S. Carpenter |
Abstract Scope |
Additively manufactured metal lattices are uniquely positioned to address current and emerging lightweight needs through unprecedented design freedom and manufacturing responsiveness. In this talk, the results of in situ, diffraction-based quasi-static compression studies on lattice structures fabricated out of Ti5553 are presented and connected with predictive FE-based modeling. It was found that incorporation of CT-based surface roughness and diffraction-based residual stress measurements are required in order to develop a predictive mechanical model. In addition, high strain rate tests on Ti5553 lattice structures built using Renishaw and SLM systems will be presented in a case study on the impact of differing AM technologies on dynamic performance. The combined results presented are used to help mature our understanding of the process-structure-property-performance relationships in metal lattice structures. |