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David Restrepo

Researcher at University of Texas at San Antonio

Publications -  41
Citations -  1197

David Restrepo is an academic researcher from University of Texas at San Antonio. The author has contributed to research in topics: Phase (matter) & Internal medicine. The author has an hindex of 10, co-authored 35 publications receiving 693 citations. Previous affiliations of David Restrepo include Northwestern University & Purdue University.

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Multiscale Toughening Mechanisms in Biological Materials and Bioinspired Designs

TL;DR: The toughening mechanisms of different organisms at multilength scales are identified and summarized: macromolecular deformation, chemical bond breakage, and biomineral crystal imperfections at the atomic scale; biopolymer fibril reconfiguration/deformation andBiomineral nanoparticle/nanoplatelet/nanorod translation, and crack reorientation at the nanoscale.
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Self-assembly of coherently dynamic, auxetic, two-dimensional protein crystals

TL;DR: Three single- or double-point mutants of the C4-symmetric protein RhuA were designed to assemble via different modes of intermolecular interactions into crystalline 2D arrays, yielding coherently dynamic 2D molecular lattices.
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Phase transforming cellular materials

TL;DR: In this article, the authors extend the notion of phase transformations to periodic cellular materials by introducing materials whose unit cells have multiple stable configurations, each stable configuration corresponds to a stable phase, and transitions between these phases are regarded as phase transformations of the cellular material.
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Toughening mechanisms of the elytra of the diabolical ironclad beetle

TL;DR: This work identifies multiscale architectural designs within the exoskeleton of the diabolical ironclad beetle, Phloeodes diabolicus, and examines the resulting mechanical response and toughening mechanisms, creating interlocking sutures from biomimetic composites that show a considerable increase in toughness compared with a frequently used engineering joint.
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Revealing the Mechanics of Helicoidal Composites through Additive Manufacturing and Beetle Developmental Stage Analysis

TL;DR: Experation and analysis reveal improved isotropy and enhanced toughness at lower pitch angles, highlighting the flexibility of the helicoidal architecture, and trends in stiffness measurements were found to be well‐predicted by laminate theory, suggesting facile mechanics laws for use in biomimicry.