A04 Evaluation of Mechanical Properties of Metallic Glass with Dispersed Nano-crystalline Particles by Molecular Dynamics Simulations : Particle Size Effects in Very Small Prarticle Range

2006 ◽  
Vol 2006.59 (0) ◽  
pp. 7-8
Author(s):  
Ryosuke MATSUMOTO ◽  
Michihiko NAKAGAKI
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Particle Size ◽  
Metallic Glass ◽  
Molecular Dynamics Simulations ◽  
Size Effects ◽  
Particle Size Effects ◽  
Nano Crystalline ◽  
Dynamics Simulations

Compromising high strength and ductility in nanoglass–metallic glass nanolaminates

RSC Advances ◽  
2016 ◽  
Vol 6 (16) ◽  
pp. 13548-13553 ◽  
Author(s):  
Sara Adibi ◽  
Paulo S. Branicio ◽  
Roberto Ballarini
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Metallic Glass ◽  
Molecular Dynamics Simulations ◽  
Large Scale ◽  
High Strength ◽  
Dynamics Simulations ◽  
Thick Layers ◽  
Strength And Ductility

Large-scale molecular-dynamics simulations are used to investigate the mechanical properties of 50 nm diameter Cu64Zr36 nanolaminate nanopillars constructed from 5 nm thick layers of metallic glass (MG) or MG and 5 nm grain sized nanoglass.

scholarly journals Molecular dynamics simulations of mechanical failure in polymorphic arrangements of amyloid fibrils containing structural defects

2013 ◽  
Vol 4 ◽  
pp. 429-440 ◽  
Author(s):  
Hlengisizwe Ndlovu ◽  
Alison E Ashcroft ◽  
Sheena E Radford ◽  
Sarah A Harris
Keyword(s):  
Mechanical Properties ◽  
Molecular Dynamics ◽  
Molecular Dynamics Simulations ◽  
Amyloid Fibrils ◽  
Amyloid Fibril ◽  
Steered Molecular Dynamics ◽  
Mechanical Failure ◽  
Structural Defects ◽  
Dynamics Simulations

We examine how the different steric packing arrangements found in amyloid fibril polymorphs can modulate their mechanical properties using steered molecular dynamics simulations. Our calculations demonstrate that for fibrils containing structural defects, their ability to resist force in a particular direction can be dominated by both the number and molecular details of the defects that are present. The simulations thereby suggest a hierarchy of factors that govern the mechanical resilience of fibrils, and illustrate the general principles that must be considered when quantifying the mechanical properties of amyloid fibres containing defects.

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