Strombus gigas inspired biomimetic ceramic composites via SHELL—Sequential Hierarchical Engineered Layer Lamination

Karambelas, Gregory; Santhanam, Sridhar; Wing, Zachary N.

doi:10.1016/j.ceramint.2012.07.067

Cited by 33 publications

(16 citation statements)

References 24 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In these other SBMs the fracture surfaces appear very rough. This roughness is thought to be a signature of the crack arrest and re-nucleation toughening mechanism that occurs when a crack reaches an interface between adjacent layers 10,[35][36][37] . As such, the relatively smooth fracture surface of the Ea.…”

Section: Summary Of Experimentsmentioning

confidence: 99%

“…The arrangements of these layers, which we refer to as layered architectures, are thought to be responsible for the toughness enhancements observed in these SBMs 5 . There is currently considerable interest in understanding the connections between layered architectures and toughness enhancements in SBMs [5][6][7][8] because this understanding could aid in the development of new, tough engineering materials 4,9,10 .…”

mentioning

confidence: 99%

See 1 more Smart Citation

Lamellar architectures in stiff biomaterials may not always be templates for enhancing toughness in composites

et al. 2020

View full text Add to dashboard Cite

The layered architecture of stiff biological materials often endows them with surprisingly high fracture toughness in spite of their brittle ceramic constituents. Understanding the link between organic-inorganic layered architectures and toughness could help to identify new ways to improve the toughness of biomimetic engineering composites. We study the cylindrically layered architecture found in the spicules of the marine sponge Euplectella aspergillum. We cut micrometer-size notches in the spicules and measure their initiation toughness and average crack growth resistance using flexural tests. We find that while the spicule's architecture provides toughness enhancements, these enhancements are relatively small compared to prototypically tough biological materials, like nacre. We investigate these modest toughness enhancements using computational fracture mechanics simulations.

show abstract

Section: Summary Of Experimentsmentioning

confidence: 99%

mentioning

confidence: 99%

Lamellar architectures in stiff biomaterials may not always be templates for enhancing toughness in composites

et al. 2020

View full text Add to dashboard Cite

show abstract

“…Kaul and Faber [33] produced a crossed-lamellar ceramic laminate of mullite using tape casting, oriented lamination and templated grain growth, and reported achieving a microstructure that produced a torturous crack path. Karambelas et al [34] used silicon nitride and boron nitride to prototype a crossed-lamellar microstructure using a method based on co-extrusion, cutting and re-bonding the materials. Although they succeeded in incorporating some of the toughening mechanisms of the natural crossedlamellar microstructure, including tunnel cracking, crack deflection, crack bridging and frictional sliding, the failure of the specimens was unstable.…”

Section: Introductionmentioning

confidence: 99%

Failure mechanisms of biological crossed-lamellar microstructures applied to synthetic high-performance fibre-reinforced composites

Häsä

Pinho

2019

Journal of the Mechanics and Physics of Solids

View full text Add to dashboard Cite

This paper investigates whether the toughening mechanisms of a biological crossedlamellar microstructure can be reproduced in a synthetic high-performance carbon fibre/epoxy matrix composite. The mechanics of the failure process in synthetic crossedlamellar microstructures was investigated using the Finite Element Method. This enabled the design of a high-performance carbon-fibre reinforced polymer (CFRP) with such microstructure. Two different procedures were then developed to synthesise the first crossed-lamellar microstructures in CFRP in the literature. Test specimens were subsequently manufactured. Three-point bend tests were carried out in an SEM environment, showcasing the damage diffusion capability of the microstructure under stable conditions. The results show that the crossed-lamellar microstructure can be synthesised in CFRP with good accuracy, and that the mechanical toughening mechanisms associated with the natural crossed-lamellar microstructures can be reproduced in this synthetic material.

show abstract

“…Conch (Strombus gigas) shell is a large gastropod that is composed of inner, middle and outer crossed lamellar macro-layers ( Figure 3) [109]. Each layer shows a hierarchical structure over several different length scales (nano to macro) [110][111][112][113][114] and is composed of a number of parallel first order lamellae, which are several micrometers wide and 5-60 µm thick [110,111,115].…”

Section: Conch (Strombus Gigas) Shellmentioning

confidence: 99%

A comprehensive review of selected biological armor systems – From structure-function to bio-mimetic techniques

Ghazlan

Ngo

et al. 2019

Composite Structures

View full text Add to dashboard Cite

This paper explores several lamellar structures found in nature, which have been shown to possess superior armor systems. In particular, the hard armor systems of nacre and conch shells, and the flexible armor system of fish scales are the focus of this review due to their high relevance to the protective structural engineering discipline. The structure-function relationships that govern the superior mechanical performance of these systems are attributed to their well-organized composite hierarchical structures. The paper also reviews advancements in additive manufacturing techniques for proof-of-concept prototyping, as well as advanced modeling techniques that have been employed to capture the complex geometries of biological structures and the interactions between their constituents. Finite element modeling and 3D printing were found to be the most popular techniques, as they automate the process of modeling and manufacturing complex bio-mimetic composites from a computer-aided design. Finally, attempts to apply bio-mimicry to the structural engineering discipline have been identified, which remains a new and exciting area of research.

show abstract

Strombus gigas inspired biomimetic ceramic composites via SHELL—Sequential Hierarchical Engineered Layer Lamination

Cited by 33 publications

References 24 publications

Lamellar architectures in stiff biomaterials may not always be templates for enhancing toughness in composites

Lamellar architectures in stiff biomaterials may not always be templates for enhancing toughness in composites

Failure mechanisms of biological crossed-lamellar microstructures applied to synthetic high-performance fibre-reinforced composites

A comprehensive review of selected biological armor systems – From structure-function to bio-mimetic techniques

Contact Info

Product

Resources

About