Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 11 of 11 for “"Bio-inspired Materials"”.
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Improvement in mechanical properties through structural hierarchies in bio-inspired materials
Structural biological materials such as bone, nacre, insect cuticle, and sea sponge exoskeleton showcase the use of inferior building blocks like proteins and minerals to create structures that afford load-bearing and armor capabilities. Many of these are composite structures that possess the best …
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Multiscale Modeling of Fatigue and Fracture in Polycrystalline Metals, 3D Printed Metals, and Bio-inspired Materials
… at different length scales for a broad range of materials. The developed multiscale framework is utilized to study the details of fracture and fatigue for the rolling contact in rails, additively manufactured alloys, and bio-inspired hierarchical materials. Rolling contact fatigue (RCF) is a …
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Development of A Micro-Scale Impact Tester for Characterizing Dynamic Properties of Biological Structural Materials
… impact testing device for use in Virginia Tech's Biological and Bio-inspired Materials Laboratory. A brief overview of current projectile impact testers is presented along with motivation for the fabrication of a new testing system capable of firing a projectile with a maximum diameter of 0.5 mm …
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Reinventing the (Spinning) Wheel: Maps to Scale Bacterial-Grown Materials
… we can tap into nature’s intelligence to find materials whose properties often surpass those manufactured by industry. However, accessible biomaterials that can be extracted from nature represent only a small fraction of biology’s repertoire. The emergence of synthetic biology presents the …
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Experiments augmented computational analysis of structural materials: A focus on metallic and biological systems
… emissions and the need for high performance materials in advanced engineering applications have posed significant challenges for materials scientists. This research first investigates the influence of high magnetic fields during heat treatment an energy efficient alternative to conventional …
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Bio-inspired composites : a de novo approach to the conceptualization, design and synthesis of tough mesoscale structures with simple building blocks
Composites play an important role as structural materials in a range of engineering fields due to their potential to combine the best mechanical properties of their constituents. In biology, composites are ubiquitous and exhibit fascinating and precise architectures at fine length scales, where …
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Chemical amplification in self-stiffening materials
Self-healing and self-stiffening materials represent bio-inspired materials which can recover and even improve their properties after a damage event ideally without human intervention. These materials are able to utilize a neutral or even harmful environmental stimulus generated in the damage event …
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Design Strategies for Dynamic Self-assembled Protein Materials
… complex functionality has driven research into bio-inspired materials where scientists investigate the complex relationship between sequence, structure and function of these materials. A good illustrative example of the effect that hierarchical structure can have is a brick wall. Bricks are laid …
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Mechanics and Materials of the Elephant Trunk with Applications to Conservation Technology
An elephant trunk is both flexible and strong, able to pick up peanuts and uproot entire trees. This versatility has made the elephant a model for soft robotics studies that seek to build strong, flexible manipulators. In this thesis, we report an elephant's behaviors as it extends its trunk to …
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Order and Disorder in Protein Biomaterial Design
<p>Crystalline and amorphous materials have been extensively studied for their interesting properties, but they comprise a very small portion of the total materials space. The properties of most materials are a consequence of the interactions between their ordered and disordered components. This …
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Controlled self-assembly of natural proteins into hierarchically structured functional materials
… and multifunctional proteinaceous materials. Inspired by nature’s approach, there is growing interest in the exploitation of self-assembled protein structures as a basis of artificial protein materials. To this end, this thesis aims to gain a better understanding of the …