GPU-based simulations of fracture in idealized brick and mortar composites

Pro, J. William; Lim, Rone Kwei; Petzold, Linda R.; Utz, Marcel; Begley, Matthew R.

doi:10.1016/j.jmps.2015.03.011

Cited by 40 publications

(7 citation statements)

References 47 publications

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“…This model has been studied by a number of authors in much more detail 34,35 and a review of the Young's modulus in staggered brick-and-mortar models can be found in ref. 33.…”

Section: And the References Thereinmentioning

confidence: 99%

The mechanics of tessellations – bioinspired strategies for fracture resistance

et al. 2016

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Faced with a comparatively limited palette of minerals and organic polymers as building materials, evolution has arrived repeatedly on structural solutions that rely on clever geometric arrangements to avoid mechanical trade-offs in stiffness, strength and flexibility. In this tutorial review, we highlight the concept of tessellation, a structural motif that involves periodic soft and hard elements arranged in series and that appears in a vast array of invertebrate and vertebrate animal biomaterials. We start from basic mechanics principles on the effects of material heterogeneities in hypothetical structures, to derive common concepts from a diversity of natural examples of one-, two- and three-dimensional tilings/layerings. We show that the tessellation of a hard, continuous surface - its atomization into discrete elements connected by a softer phase - can theoretically result in maximization of material toughness, with little expense to stiffness or strength. Moreover, the arrangement of soft/flexible and hard/stiff elements into particular geometries can permit surprising functions, such as signal filtering or 'stretch and catch' responses, where the constrained flexibility of systems allows a built-in safety mechanism for ensuring that both compressive and tensile loads are managed well. Our analysis unites examples ranging from exoskeletal materials (fish scales, arthropod cuticle, turtle shell) to endoskeletal materials (bone, shark cartilage, sponge spicules) to attachment devices (mussel byssal threads), from both invertebrate and vertebrate animals, while spotlighting success and potential for bio-inspired manmade applications.

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“…This model has been studied by a number of authors in much more detail 34,35 and a review of the Young's modulus in staggered brick-and-mortar models can be found in ref. 33.…”

Section: And the References Thereinmentioning

confidence: 99%

The mechanics of tessellations – bioinspired strategies for fracture resistance

et al. 2016

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“…Most of the modeling studies conducted on nacre-like materials showed that introducing microstructural variations degrades both strength [15] and toughness [16]. Nevertheless, it has been shown that in some configurations, microstructural variations are beneficial.…”

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confidence: 99%

Effect of microstructure heterogeneity on the damage resistance of nacre-like alumina: Insights from image-based discrete simulations

et al. 2021

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Recently, several types of nacre-like materials have been developed using various methods. However, the resulting materials exhibit a significant randomness and defects compared to natural nacre. Therefore, evaluating the influence of these microstructural variations on the material's mechanical behavior is of high interest for the development of nacre-like materials and their industrial scale-up. In this work, we present an original method that allows the modeling of complex morphology of brick and mortar materials, by combining Discrete Element Method and Electron Backscatter Diffraction images. Using different realistic microstructures we studied the effect of the microstructural variations on crack propagation and damage resistance. The obtained results were compared to the regular microstructure of nacre and showed a non-negligible decrease of mechanical properties.

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“…At the micro-scale, we focus our attention on one layer of nacre, which is 300 m thick as previously mentioned. At the most elementary level, many researchers have correlated nacre's microstructure to a brick wall [75][76][77][78][79]. Generally, nacre's microstructure can be grouped into two arrangements, namely columnar and sheet [63].…”

Section: Structure-function Relationships Of Biological Lamellar Strumentioning

confidence: 99%

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

Ghazlan

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et al. 2019

Composite Structures

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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.

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GPU-based simulations of fracture in idealized brick and mortar composites

Cited by 40 publications

References 47 publications

The mechanics of tessellations – bioinspired strategies for fracture resistance

The mechanics of tessellations – bioinspired strategies for fracture resistance

Effect of microstructure heterogeneity on the damage resistance of nacre-like alumina: Insights from image-based discrete simulations

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

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