منابع مشابه
Freeform Honeycomb Structures
Motivated by requirements of freeform architecture, and inspired by the geometry of hexagonal combs in beehives, this paper addresses torsion-free structures aligned with hexagonal meshes. Since repetitive geometry is a very important contribution to the reduction of production costs, we study in detail “honeycomb structures”, which are defined as torsion-free structures where the walls of cell...
متن کاملForced convection in metallic honeycomb structures
The heat transfer and pressure drop characteristics of sandwiched metallic honeycomb structures, with one face-sheet heated by constant heat flux and cooled by forced air convection, have been investigated both experimentally and numerically. Six test samples, made of two materials with different thermal conductivities (16.2 W/(mK) for stainless steel and 401 W/(mK) for pure copper), were evalu...
متن کاملNonlinear Waves in Honeycomb (graphene-like) Photonic Lattices
We study the dynamics of waves in honeycomb lattices. Wave dynamics in honeycomb lattices exhibits unique phenomena that cannot be observed in any other periodic system, such as conical diffraction [1] and Klein tunneling. The origin of these intriguing phenomena is the conical intersection between the two bands and the presence of two atoms in each unit cell. These two properties make it possi...
متن کاملHopping Charge Transport in Honeycomb Carbon Network Structures
Honeycomb-type nitrocellulose network patterns based on a hexagonal elementary cell with a diameter of about 2 m have been fabricated by means of a self-organized preparation process. Our method takes advantage of the spreading of a drop of the initial polymer solution on the surface of distilled water cooled down to a temperature of 3 to 5 C and the subsequent influence of the water vapor (i.e...
متن کاملOnline Guided Wave-Based Debonding Detection in Honeycomb Sandwich Structures
Because of the complex nature of structural characteristics, damage detection in honeycomb sandwich structures inherently carries many challenges. In the study, effects of debonding on leaky guided wave propagation in honeycomb sandwich structures are first studied by using the finite element method. A surface-bonded piezoelectric wafer actuator/sensor network is used for elastic-guided wave pr...
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ژورنال
عنوان ژورنال: Journées Équations aux dérivées partielles
سال: 2012
ISSN: 0752-0360,2118-9366
DOI: 10.5802/jedp.95