| About this Abstract |
| Meeting |
MS&T22: Materials Science & Technology
|
| Symposium
|
Additive Manufacturing and Cellular/Lattice Structures: Designs, Realization and Applications
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| Presentation Title |
Progressive Nature of Failure of 3D Lattices under Compressive, Shear and Hydrostatic Loads
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| Author(s) |
Sahar Choukir, Chandra Veer Singh |
| On-Site Speaker (Planned) |
Sahar Choukir |
| Abstract Scope |
3D lattices can possess unusual mechanical properties. Limited studies delve into post-yield behavior of lattices under multiple loading conditions. Insights into the response of these complex structures under uniaxial compressive load, shear load and hydrostatic pressure are necessary to build innovative engineering materials with tunable properties. Via finite element simulations, the progressive failure of polymeric and metallic 3D lattices with different topologies were investigated. The results enable the systemic characterization of the mechanical response of these structures for both a brittle and a ductile material system for specific load-bearing and energy absorption applications. These findings provide a comparative study of the brittle versus ductile behavior of strut, sheet and triply periodic minimal surface based cellular structures and pave the way to structural design of damage tolerant lattices. |