Title:
Nonplanar Layering of Filaments and Sinusoidally Architectured Structures in 3D-Printed Cementitious Materials
Author(s):
Yu Wang
Publication:
Web Session
Volume:
ws_S23_YuWang.pdf
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
4/2/2023
Abstract:
The adoption of additive manufacturing of cementitious materials empowered flexible shaping of external forms and the internal architecture of structural elements. This approach enables production of structural elements with novel and tailorable mechanical properties, which are different from those obtained using conventional casting methods, by relying on architectured materials found in nature, including biological composites with high impact resistances or damage tolerance capabilities. Still, adoption of these novel architectures in concrete structures is difficult due to the complex and exquisite nature of internal shapes required to alter the mechanical response. However, with the use of additive-manufacturing techniques, bio-inspired designs can be utilized for a broad range of cementitious materials. This presentation will cover the development of 3D-printed concrete (3DCP) specimens with sinusoidal and Bouligand architectures, inspired by the dactyl club of the mantis shrimp. The use of these architectures generates novel damage mechanisms which alter the mechanical performance of the 3DCP elements. The presentation will summarize the approach to development of the sinusoidal layering of the filaments in 3D printed cementitious materials and highlight the influence of this novel architecture on selected mechanical properties of specimens prepared using this technique.