3D-Printed Biomimetic Hierarchical Nacre Architecture: Fracture Behavior and Analysis

Abstract

Nacreous architecture has a good combination of toughness and modulus, which can be mimicked at the micron to submicron level using 3D printing to resolve the demand in numerous applications such as automobile, aerospace, and protection equipment. The present study examines the fabrication of two nacre structures, a nacre columnar (NC) and a nacre sheet (NS), and a pristine structure via fused deposition modeling (FDM) and explores their mechanically superior stacking structure, mechanism of failure, crack propagation, and energy dissipation. The examination reveals that the nacre structure has significant mechanical properties compared to a neat sample. Additionally, NS has 112.098 J/m impact resistance (9.37% improvement), 803.415 MPa elastic modulus (11.23% improvement), and 1563 MPa flexural modulus (10.85% improvement), which are all higher than those of the NC arrangement.

Recent advancement and trends in the development of membranes having bactericidal attributes via direct ink writing

“…), selective laser sintering (SLS)(a technique utilizing powder that melts and fuses powders using laser radiation and then stacks the powders layer by layer), selective laser melting (melting and deposition of powder layers one after another using a high-density laser beam.) and fused deposition modeling (FDM)(a piece of equipment based on extrusion principle) [28][29][30]. Over the last few years, the biomedical industry has substantially used multi-dimensional printers due to their capacity to quickly and economically produce huge, complex models [29].…”

Unleashing Enhanced Compressive Strength: 3D Printed Octopus-Inspired Suction Cups Using Topological Engineering

“…Replicating these complex designs at both the laboratory and industrial scale has been challenging in the past decade. However, it has now become possible to use 3D printers. − These printers provide robust platforms for printing a diverse range of materials and can mimic complex designs found in nature. − They can incorporate various material properties such as mechanical, chemical, optical, electrical, etc. Moreover, 3D printers offer sustainability, flexibility, and customization, resulting in minimal waste and almost ready-to-use products with minimal postprocessing …”