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18 April 2022 Thermomechanical analysis of additively manufactured polymeric mechanical metamaterials
Tark Giri, Russell W. Mailen
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Proceedings Volume PC12043, Active and Passive Smart Structures and Integrated Systems XVI; (2022) https://doi.org/10.1117/12.2613120
Event: SPIE Smart Structures + Nondestructive Evaluation, 2022, Long Beach, California, United States
Abstract
Fused deposition modeling permits rapid, low-cost fabrication of polymeric lattices. Frequently, these lattices are evaluated under isothermal conditions at ambient temperatures. However, the mechanical properties of polymeric lattices are sensitive to variations in temperature. We evaluate the mechanical behavior of polymeric lattices across a range of temperatures utilizing a coupled computational and experimental approach. 3D printed unit cells are subjected experimentally to sequential tension and compression and results are compared to a multiphysics finite element framework. Unit cells are then tessellated to form larger lattices that are analyzed computationally, wherein the effects of uniform and gradient temperatures are considered.
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Tark Giri and Russell W. Mailen "Thermomechanical analysis of additively manufactured polymeric mechanical metamaterials", Proc. SPIE PC12043, Active and Passive Smart Structures and Integrated Systems XVI, (18 April 2022); https://doi.org/10.1117/12.2613120
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KEYWORDS
Additive manufacturing
Polymers
Metamaterials
Temperature metrology
Fused deposition modeling
Glasses
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