A graphic way for notch shape optimization

Mattheck, C.; Sorensen, Justin; Bethge, K.

doi:10.2495/dn060021

Cited by 3 publications

(1 citation statement)

References 2 publications

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“…A large quantity of waste placed in landfills comes from construction and demolition sites, and its toxicity can contaminate the environment, including ground water [ 2 , 3 ]. Various studies have shown that children from various countries, such as USA, Nigeria, and France, are being poisoned with lead from buildings, especially through paint degrading into dust particles [ 69 , 70 , 71 , 72 , 73 , 74 ]. As a response, various fungal species can serve to substantially reduce lead concentration in aqueous substrates [ 75 ].…”

Section: Discussionmentioning

confidence: 99%

Growth and Mechanical Characterization of Mycelium-Based Composites towards Future Bioremediation and Food Production in the Material Manufacturing Cycle

Houette

Maurer²,

Niewiarowski

et al. 2022

Biomimetics

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Today’s architectural and agricultural practices negatively impact the planet. Mycelium-based composites are widely researched with the aim of producing sustainable building materials by upcycling organic byproducts. To go further, this study analyzed the growth process and tested the mechanical behavior of composite materials grown from fungal species used in bioremediation. Agricultural waste containing high levels of fertilizers serves as the substrate for mycelium growth to reduce chemical dispersal in the environment. Compression and three-point bending tests were conducted to evaluate the effects of the following variables on the mechanical behavior of mycelium-based materials: substrate particle size (with or without micro-particles), fungal species (Pleurotus ostreatus and Coprinus comatus), and post-growth treatment (dried, baked, compacted then dried, and compacted then baked). Overall, the density of the material positively correlated with its Young’s and elastic moduli, showing higher moduli for composites made from substrate with micro-particles and for compacted composites. Compacted then baked composites grown on the substrate with micro-particles provided the highest elastic moduli in compression and flexural testing. In conclusion, this study provides valuable insight into the selection of substrate particle size, fungal species, and post-growth treatment for various applications with a focus on material manufacturing, food production, and bioremediation.

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Section: Discussionmentioning

confidence: 99%

Growth and Mechanical Characterization of Mycelium-Based Composites towards Future Bioremediation and Food Production in the Material Manufacturing Cycle

Houette

Maurer²,

Niewiarowski

et al. 2022

Biomimetics

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Optimal design of microfluidic networks using biologically inspired principles

Barber

Emerson

2007

Microfluid Nanofluid

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From the earliest of times, Man has sought to replicate ideas that have evolved naturally in plants and animals. Understanding and extracting these ''natural'' design strategies has opened up a whole new field of research known as biomimetics. Designs formulated using biologically inspired principles range from novel surface treatments that mimic physiological processes to geometrical optimization for improving the performance of a system. In this paper, we will show how biomimetic principles based on the laws that govern biological vascular trees can be used to design artificial microfluidic distribution systems. The study focuses specifically on microfluidic manifolds composed of constant-depth rectangular-or trapezoidal-sectioned channels, as these geometries can readily be fabricated using standard micro-fabrication techniques. We will show that it is possible to introduce a prescribed element of flow control into the system by carefully selecting the branching parameter that governs the change in channel dimension at each bifurcation.

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Root Systems Research for Bioinspired Resilient Design: A Concept Framework for Foundation and Coastal Engineering

Stachew¹,

Houette²,

Gruber³

2021

Front. Robot. AI

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The continuous increase in population and human migration to urban and coastal areas leads to the expansion of built environments over natural habitats. Current infrastructure suffers from environmental changes and their impact on ecosystem services. Foundations are static anchoring structures dependent on soil compaction, which reduces water infiltration and increases flooding. Coastal infrastructure reduces wave action and landward erosion but alters natural habitat and sediment transport. On the other hand, root systems are multifunctional, resilient, biological structures that offer promising strategies for the design of civil and coastal infrastructure, such as adaptivity, multifunctionality, self-healing, mechanical and chemical soil attachment. Therefore, the biomimetic methodology is employed to abstract root strategies of interest for the design of building foundations and coastal infrastructures that prevent soil erosion, anchor structures, penetrate soils, and provide natural habitat. The strategies are described in a literature review on root biology, then these principles are abstracted from their biological context to show their potential for engineering transfer. After a review of current and developing technologies in both application fields, the abstracted strategies are translated into conceptual designs for foundation and coastal engineering. In addition to presenting the potential of root-inspired designs for both fields, this paper also showcases the main steps of the biomimetic methodology from the study of a biological system to the development of conceptual technical designs. In this way the paper also contributes to the development of a more strategic intersection between biology and engineering and provides a framework for further research and development projects.

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A graphic way for notch shape optimization

Cited by 3 publications

References 2 publications

Growth and Mechanical Characterization of Mycelium-Based Composites towards Future Bioremediation and Food Production in the Material Manufacturing Cycle

Growth and Mechanical Characterization of Mycelium-Based Composites towards Future Bioremediation and Food Production in the Material Manufacturing Cycle

Optimal design of microfluidic networks using biologically inspired principles

Root Systems Research for Bioinspired Resilient Design: A Concept Framework for Foundation and Coastal Engineering

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