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Bio-inspired beam lattice materials with sacrificial bonds
International Journal of Engineering Science, 2023zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Gregory Bolshak, Michael Ryvkin
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Hierarchical Mechanical Transduction of Precision-Engineered DNA Hydrogels with Sacrificial Bonds
ACS Applied Materials & Interfaces, 2023Engineering the response to external signals in mechanically switchable hydrogels is important to promote smart materials applications. However, comparably little attention has focused on embedded precision mechanisms for autonomous nonlinear response in mechanical profiles in hydrogels, and we lack understanding of how the behavior from the molecular ...
Max Lallemang +9 more
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Creation of Sacrificial Bonds by Viscous Flow Instability
Volume 14: Emerging Technologies; Engineering Management, Safety, Ethics, Society, and Education; Materials: Genetics to Structures, 2014The multiscale structure of spider silk is widely studied because of its superior mechanical properties. Its high tenacity allows the absorption of the kinetic energy of fast and large preys. The mechanism of sacrificial bonds enhances the stretchability and toughness of spider capture-silk.
R. Passieux, D. Therriault, F. Gosselin
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Collagen breaks at weak sacrificial bonds taming its mechanoradicals
2022AbstractCollagen is a force-bearing, hierarchical structural protein important to all connective tissue. In tendon collagen, high load even below macroscopic failure level creates mechanoradicals by homolytic bond scission, similar to polymers. The location and type of initial rupture sites critically decide on both the mechanical and chemical impact ...
Benedikt Rennekamp +7 more
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Sacrificial bonds enhance toughness of dual polybutadiene networks
Polymer, 2016Abstract A new dual network elastomer is developed that consists of polybutadiene crosslinked with both permanent and transient bonds. The transient network is formed by the association of urazole groups that are randomly attached to the polymer backbone. Subsequent orthogonal covalent crosslinking through hydrosilylation in the melt state leads to a
Barbara J. Gold +7 more
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Characterizing the naturally occurring sacrificial bond within natural rubber
Polymer, 2019Abstract The influence of protein on the superior properties of NR was analyzed in term of sacrificial bonds. It was found that the presence of the naturally occurring sacrificial bond provided by protein increases the tensile strengthen and toughness, furthermore prolongs the fatigue life of NR.
Xuan Fu +4 more
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Toughening shape-memory epoxy resins via sacrificial hydrogen bonds
Polymer Chemistry, 2022A strong and tough epoxy resin with shape memory property was demonstrated.
Yibo Shen +6 more
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Do Sacrificial Bonds Affect the Viscoelastic and Fracture Properties of Bone?
Clinical Orthopaedics & Related Research, 2006Sacrificial bonds have been suggested as a toughening mechanism for bone tissue. Ionic bridges formed by divalent calcium ions between collagen molecules have been proposed as candidates for sacrificial bonds. If this mechanism is active at the macroscopic level, we should observe changes in mechanical properties of bone when calcium ions are ...
Yener N, Yeni +5 more
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Angewandte Chemie, 2014
AbstractEven though nanocomposites have provided a plethora of routes to increase stiffness and strength, achieving increased toughness with suppressed catastrophic crack growth has remained more challenging. Inspired by the concepts of mechanically excellent natural nanomaterials, one‐component nanocomposites were fabricated involving reinforcing ...
McKee, Jason R. +9 more
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AbstractEven though nanocomposites have provided a plethora of routes to increase stiffness and strength, achieving increased toughness with suppressed catastrophic crack growth has remained more challenging. Inspired by the concepts of mechanically excellent natural nanomaterials, one‐component nanocomposites were fabricated involving reinforcing ...
McKee, Jason R. +9 more
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Embedded proteins and sacrificial bonds provide the strong adhesive properties of gastroliths
Nanoscale, 2012The adhesive properties of gastroliths from a freshwater crayfish (Cherax quadricarinatus) were quantified by colloidal probe atomic force microscopy (AFM) between heavily demineralized gastrolith microparticles and gastrolith substrates of different composition. Combined AFM and transmission electron microscopy studies demonstrated that the sequential
Esben, Thormann +8 more
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