Title:
Sinusoidal Helicoidal Architecture with Nonplanar Layering of Filaments in Additively Manufactured Cementitious Materials
Author(s):
Wang
Publication:
Web Session
Volume:
Issue:
Appears on pages(s):
Keywords:
DOI:
Date:
11/3/2024
Abstract:
The adoption of additive manufacturing of cementitious materials empowered the flexible shaping of external forms and the internal architecture of structural elements. The application of internal filament architectures enables the production of structural elements with unique and tailorable mechanical properties. An effective strategy for designing architectured cement-based materials involves drawing inspiration from nature, particularly biological composites celebrated for their exceptional attributes of high impact resistance and damage tolerance. The sinusoidal helicoidal architecture found in the dactyl club of the mantis shrimp stands out as a notable example of bio-inspired design. During predatory interactions, the impact region of the mantis shrimp's dactyl club, equipped with a unique sinusoidal helicoidal architecture, demonstrated exceptional resistance to extremely high compressive stresses, effectively withstanding the intense forces generated during shell-breaking actions. This presentation will cover the development of 3D-printed concrete (3DCP) specimens featuring nonplanar layering of filaments and sinusoidal helicoidal architectures aimed at improving the mechanical performance of 3DP concrete under compressive loading. The approach to developing the nonplanar layering of filaments in 3D printed concrete will be highlighted, and the influence of this novel architecture on selected mechanical properties of 3D-printed concrete specimens will be discussed.