Thuy Nguyen

Thuy Nguyen
Leonardo da Vinci Engineering School | ESILV

PhD

About

10
Publications
706
Reads
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42
Citations
Citations since 2017
5 Research Items
18 Citations
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20172018201920202021202220230123456
20172018201920202021202220230123456

Publications

Publications (10)
Preprint
Full-text available
We examine how disordering joint position influences the linear elastic behavior of lattice materials via numerical simulations in two-dimensional beam networks. Three distinct initial crystalline geometries are selected as representative of mechanically isotropic materials low connectivity, mechanically isotropic materials with high connectivity,...
Article
Full-text available
We examine how disordering joint position influences the linear elastic behavior of lattice materials via numerical simulations in two-dimensional beam networks. Three distinct initial crystalline geometries are selected as representative of mechanically isotropic materials with low connectivity, mechanically isotropic materials with high connectiv...
Article
Full-text available
We examine the atomistic scale dependence of a material’s resistance to failure by numerical simulations and analytical analysis in electrical analogs of brittle crystals. We show that fracture toughness depends on the lattice geometry in a way incompatible with Griffith’s relationship between fracture and free surface energy. Its value finds its o...
Preprint
Full-text available
We examine the atomistic scale dependence of material's resistance-to-failure by numerical simulations and analytical analysis in electrical analogs of brittle crystals. We show that fracture toughness depends on the lattice geometry in a way incompatible with Griffith's relationship between fracture and free surface energy. Its value finds its ori...
Article
We study the version of the asymmetric prize collecting traveling salesman problem, where the objective is to find a directed tour that visits a subset of vertices such that the length of the tour plus the sum of penalties associated with vertices not in the tour is as small as possible. In [Dell'Amico, M., Maffioli, F. and Väbrand P.: On Prize-col...
Article
Full-text available
Relaxation of initially out-of-equilibrium rough interfaces in presence of thermal noise is investigated using Langevin formalism. During thermal equilibration towards the well-known roughening regime, three scaling regimes observed over three successive ranges of length-scales are evidenced: thermal roughening (late stage) at small scales, transie...
Article
Full-text available
Langevin formalism approach is used to derive analytically the time evolution of the correlation function of steps in vicinal surfaces during annealing back to thermal equilibrium. A new generic scaling form is obtained for smoothening far-from-equilibrium one dimension objects. This approach allows interpreting a series of AFM images of sapphire s...
Article
The evolution of two-dimensional (2D) islands which result from a chemo-mechanical polishing of vicinal (1, −1, 0, 2) sapphire surfaces was explored by atomic force microscopy (AFM) after annealing in air. The evolution of the surface morphology is followed after isothermal annealing (1173 K) for duration varying from 1 h to 53 h and isochronal ann...

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