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Marc A. Meyers
University of California, San Diego
511Publications
69H-index
23.7kCitations
Publications 511
Newest
#1Zezhou Li (UCSD: University of California, San Diego)H-Index: 6
#2Shiteng Zhao (University of California, Berkeley)
Last.Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
view all 7 authors...
Abstract The deformation at low temperatures (173 K and 77 K) in ultrafine-grained (100 and 500 nm) titanium is investigated and its effect on adiabatic shear localization is established. In comparison with coarse-grained titanium, the strength of ultrafine-grained titanium is higher due to the classic Hall-Petch effect while the strain hardening approaches zero. Our results show that shear localization in dynamic deformation is also altered. The width of the shear band of coarse-grained titaniu...
#1Tarah N. Sullivan (UCSD: University of California, San Diego)H-Index: 2
#2Tzu-Tying Hung (UCSD: University of California, San Diego)
Last.Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
view all 0 authors...
Abstract Avian flight feathers have developed, through evolution, an intricate architecture with multi-functional structures that are essential for flight. These lightweight and resilient appendages motivate the invention of bioinspired designs. Here we fabricate various structures inspired by significant concepts identified in the feather vane and shaft. Bioinspired prototypes based on the feather vane's unique adhesive mechanism and directional permeability are explored, and feather-shaft insp...
#1Sheng Yin (University of California, Berkeley)
#2Wen Yang (UCSD: University of California, San Diego)H-Index: 16
Last.Robert O. Ritchie (University of California, Berkeley)H-Index: 90
view all 6 authors...
Abstract Bouligand structures are widely observed in natural materials; elasmoid fish scales and the exoskeleton of arthropods, such as lobsters, crabs, mantis shrimp and insects, are prime examples. In fish scales, such as those of the Arapaima gigas , the tough inner core beneath the harder surface of the scale displays a Bouligand structure comprising a layered arrangement of collagen fibrils with an orthogonal or twisted staircase (or plywood) architecture. A much rarer variation of this str...
#1Wen Yang (UCSD: University of California, San Diego)H-Index: 16
#2Haocheng Quan (UCSD: University of California, San Diego)H-Index: 3
Last.Robert O. Ritchie (University of California, Berkeley)H-Index: 90
view all 0 authors...
Summary For fish scales to provide protection from predators without severely compromising mobility, they must be lightweight, flexible, and tough. The arapaima fish scale is a superb example of this, enabling its survival in piranha-infested lakes of the Amazon. These elasmoid scales comprise two layers: a laminate composite of parallel collagen fibrils arranged in a Bouligand-like pattern and a highly mineralized surface layer that prevents initial penetration damage. Here, we measure its J-in...
#1Audrey Velasco‐Hogan (UCSD: University of California, San Diego)H-Index: 1
#2Dimitri D. Deheyn (UCSD: University of California, San Diego)H-Index: 19
Last.Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
view all 6 authors...
Summary The dragonfish is a voracious predator of the deep sea with an arsenal of tools to hunt prey and remain concealed. In contrast to its dark pigmented skin, the dragonfish is equipped with transparent teeth. Here, we establish the structure, composition, and mechanical properties of the transparent teeth for the first time. We find the enamel-like layer to consist of nanocrystalline hydroxyapatite domains (∼20 nm grain size) embedded in an amorphous matrix, whereas in the dentin layer the ...
#1Wen Yang (ETH Zurich)H-Index: 16
#2Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
Last.Robert O. Ritchie (University of California, Berkeley)H-Index: 90
view all 3 authors...
Abstract The structural constituents of tissues in organisms are composed primarily of minerals and proteins. Collagen is the most common protein used to construct such natural materials in vertebrates; among these structures, a wide variety of hierarchical architectures with structural and property gradients have evolved to induce desired combinations of stiffness, strength, ductility and toughness for a diverse range of mechanical functionalities. The soft collagen provides biological material...
#1Zezhou Li (UCSD: University of California, San Diego)H-Index: 6
#2Shiteng Zhao (LBNL: Lawrence Berkeley National Laboratory)H-Index: 8
Last.Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
view all 4 authors...
Abstract High-entropy alloys (HEAs), also known as multi-principal element alloys or multi-component alloys, have been the subject of numerous investigations since they were first described in 2004. The earliest HEA was the equiatomic CrMnFeCoNi “Cantor” alloy, but HEAs now encompass a broad class of metallic and ceramic systems. The concept of utilizing the high entropy of mixing to develop stable multi-element alloys may not be scientifically correct but has produced extraordinary mechanical p...
#1Pooya NiksiarH-Index: 1
#2Frances Y. SuH-Index: 2
Last.Michael M. PorterH-Index: 12
view all 8 authors...
Freeze casting under external fields (magnetic, electric, or acoustic) produces porous materials having local, regional, and global microstructural order in specific directions. In freeze casting, porosity is typically formed by the directional solidification of a liquid colloidal suspension. Adding external fields to the process allows for structured nucleation of ice and manipulation of particles during solidification. External control over the distribution of particles is governed by a compet...
#1Andrei Pissarenko (UCSD: University of California, San Diego)H-Index: 2
#2Wen Yang (UCSD: University of California, San Diego)H-Index: 16
Last.Marc A. Meyers (UCSD: University of California, San Diego)H-Index: 69
view all 7 authors...
Abstract Skin, the outermost layer of the body, fulfills a broad range of functions, protecting internal organs from damage and infection, while regulating the body’s temperature and water content via the exchange of heat and fluids. It must be able to withstand and recover from extensive deformation and damage that can occur during growth, movement, and potential injuries. A detailed investigation of the evolution of the collagen architecture of the dermis as a function of deformation is conduc...
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