Three-dimensional to two-dimensional transition in mode-I fracture microbranching in a perturbed hexagonal close-packed lattice
نویسندگان
چکیده
منابع مشابه
Microbranching in mode-I fracture in a randomly perturbed lattice.
We study mode-I fracture in lattices using atomistic simulations with randomly distributed bond lengths. By using a small parameter that measures the variation of the bond length between the atoms in perfect lattices and using a three-body force law, simulations reproduce the qualitative behavior of the beyond-steady-state cracks in the high-velocity regime, including reasonable microbranching....
متن کاملDispersive Diffraction in a Two-Dimensional Hexagonal Transmission Lattice
Consider a hexagonal LC lattice of inductors and capacitors. For the lattice diagram shown in Fig. 1, we assume that each edge consists of an inductor that connects two nodes, and that there is a capacitor connecting each node to a ground plane that is not pictured. This medium is a twodimensional generalization of the standard transmission line structure. We take the inductances L and capacita...
متن کاملThe transition from two-dimensional to three-dimensional foam structures.
Small cells in an experimental sample of two-dimensional foam, such as that which is contained between two glass plates, may undergo a transition to a three-dimensional form, becoming detached from one boundary. We present the first detailed observations of this phenomenon, together with computer simulations. The transition is attributed to an instability of the Rayleigh-Plateau type. A theoret...
متن کاملThe transition from three-dimensional to two-dimensional foam structures.
A two-dimensional foam consists of a monolayer of bubbles. It can be created by squeezing the more familiar three-dimensional foam between two parallel glass plates. We describe and explain the minimum plate separation H which must be reached to fully effect the transition from three- to two- dimensional foam. We find that H/V(1/3) is close to one, where V is the average bubble volume, and incr...
متن کاملComputational and Programming Aspects of Transition Elements in a Three-dimensional Finite Element Program
The performance of any finite element (FE) structural analysis is directly related to the global number of nodes and degrees of freedom (DOF) of the discretized structure and mesh distribution attributes. It is obvious that the appropriate numerical analysis needs finer elements in the zone of interest, e.g. zone of high stress concentration and intensity, and coarser elements for farther porti...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review E
سال: 2017
ISSN: 2470-0045,2470-0053
DOI: 10.1103/physreve.95.063004