Search Results/Filters    

Filters

Year

Banks



Expert Group










Full-Text


Issue Info: 
  • Year: 

    2023
  • Volume: 

    39
  • Issue: 

    2
  • Pages: 

    3-13
Measures: 
  • Citations: 

    0
  • Views: 

    55
  • Downloads: 

    18
Abstract: 

In this study, a new metallic damper, the Corrugated Honeycomb Damper (CHD), is presented. The CHD is designed for ease of manufacturing and implementation in various structures, with a stable energy dissipation characteristic when subjected to lateral loading. The basic configuration of the CHD consists of two steel plates that are bent to form trapezoidal corrugations. The plates are then welded together along the bent lines to build the Honeycomb geometry. To investigate the behavior of the CHD, a closed-form expression for the elastic stiffness was first obtained using the matrix analysis method. A verified numerical model was then developed in ABAQUS software to study the non-linear behavior of the CHD, considering both material and geometric non-linearity as well as the potential for ductile steel damage. A comprehensive parametric study was performed, analyzing 12 CHDs with different geometric characteristics, and evaluating both monotonic and cyclic responses. Force-displacement and cumulative dissipated energy curves were extracted, and relevant elaborations were presented. Additionally, the equivalent stiffness and equivalent damping of the CHDs during cyclic loading were calculated, taking into account the principles of dynamics of structures. The results demonstrated that the CHD has stable and symmetric dissipative loops of energy, and that increasing the depth and thickness of the CHD can enhance its energy absorbing and load bearing capacities. Minimizing the width of the damper can fatten the hysteresis loops, but may also affect the ductility of the damper. Recommendations were given for the total height of the damper and the angle of bents to maintain stable hysteresis loops with respect to the target drift of the CHD.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 55

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 18 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2024
  • Volume: 

    54
  • Issue: 

    2
  • Pages: 

    13-24
Measures: 
  • Citations: 

    0
  • Views: 

    12
  • Downloads: 

    0
Abstract: 

Concentrically braced frames (CBFs) enables high lateral strength and elastic stiffness in comparison with other common systems such as eccentrically braced frames (EBFs) and moment-resisting frames (MRFs). Despite the advantages of the CBF systems, they do not provide considerable seismic energy dissipation capacity due to buckling of the braces under compressive loads. Various types of control systems, such as, friction dampers, viscoelastic dampers, metallic yielding dampers, and etc. have been proposed to mitigate the destructive action of earthquakes on buildings. Among these dampers, metallic yielding dampers are the simplest, cost-effective and easy to fabricate. Among the different metallic yielding dampers, steel plate yielding fuses are the most efficient devices which have been extensively studied by researchers. ADAS is a type of flexural dampers in which the hysteretic energy is achieved through the flexural yielding of steel plates. However, this type of damper suffers from the relatively low initial stiffness (Xia and Hanson 1992). Another type of metallic dampers is the shear link which relies on the inelastic shear deformation of metallic plates under the in-plane loading and offers high initial stiffness and stable energy dissipation (Bakhshayesh et al. 2021). A new shear damper, known as Honeycomb structural fuse (HSF), was proposed and developed. The energy dissipation potential of such devices can be improved if the metallic plates are so oriented that they can undergo combined flexure and shear deformation under the action of lateral loading. In this study, a combined Honeycomb-and-flexural yielding dampers are proposed as passive energy dissipation systems....

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 12

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2024
  • Volume: 

    54
  • Issue: 

    3
  • Pages: 

    13-24
Measures: 
  • Citations: 

    0
  • Views: 

    12
  • Downloads: 

    0
Abstract: 

Concentrically braced frames (CBFs) enables high lateral strength and elastic stiffness in comparison with other common systems such as eccentrically braced frames (EBFs) and moment-resisting frames (MRFs). Despite the advantages of the CBF systems, they do not provide considerable seismic energy dissipation capacity due to buckling of the braces under compressive loads. Various types of control systems, such as, friction dampers, viscoelastic dampers, metallic yielding dampers, and etc. have been proposed to mitigate the destructive action of earthquakes on buildings. Among these dampers, metallic yielding dampers are the simplest, cost-effective and easy to fabricate. Among the different metallic yielding dampers, steel plate yielding fuses are the most efficient devices which have been extensively studied by researchers. ADAS is a type of flexural dampers in which the hysteretic energy is achieved through the flexural yielding of steel plates. However, this type of damper suffers from the relatively low initial stiffness (Xia and Hanson 1992). Another type of metallic dampers is the shear link which relies on the inelastic shear deformation of metallic plates under the in-plane loading and offers high initial stiffness and stable energy dissipation (Bakhshayesh et al. 2021). A new shear damper, known as Honeycomb structural fuse (HSF), was proposed and developed. The energy dissipation potential of such devices can be improved if the metallic plates are so oriented that they can undergo combined flexure and shear deformation under the action of lateral loading. In this study, a combined Honeycomb-and-flexural yielding dampers are proposed as passive energy dissipation systems.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 12

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

MOHAMMADI R. | SAHEBSARA P.

Issue Info: 
  • Year: 

    2013
  • Volume: 

    12
  • Issue: 

    4
  • Pages: 

    317-321
Measures: 
  • Citations: 

    0
  • Views: 

    1004
  • Downloads: 

    0
Abstract: 

‎The possibility of symmetrical s-wave superconductivity in the Honeycomb lattice is studied within a strongly correlated regime, using the Hubbard model. The superconducting order parameter is defined by introducing the Green function, which is obtained by calculating the density of the electrons. In this study showed that the superconducting order parameter appears in doping interval between 0 and 0.5, and x=0.25 is the optimum doping for the s-wave superconductivity in Honeycomb lattice.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 1004

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2023
  • Volume: 

    53
  • Issue: 

    2
  • Pages: 

    44-49
Measures: 
  • Citations: 

    0
  • Views: 

    108
  • Downloads: 

    18
Abstract: 

In the 1970, Popov et al. Developed plans to make plastic joints in frames with eccentric bracing to increase energy dissipation (Roeder and Egor, 1978), and since the late 1980s, the use of steel dampers has been common in countries such as Japan and Indonesia. Has been. Different types of steel dampers have been used since then, for example ADAS, X-shaped and Honeycomb dampers are some of the steel dampers that are still under development and research studies have been done on them (Askariani et al. 2020).

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 108

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 18 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Author(s): 

SAIDANI M. | ROBERTS M.W. L

Issue Info: 
  • Year: 

    2006
  • Volume: 

    7
  • Issue: 

    5
  • Pages: 

    479-486
Measures: 
  • Citations: 

    0
  • Views: 

    369
  • Downloads: 

    208
Abstract: 

The aim of the present paper is to review a novel modular constructional element for the building and construction industries that was patented by Coventry University. Modular elements have been used in the past in the construction of structures in order to speed construction and cut on time and cost. The modular element, the subject of this study, comprises hexagonal elements made of steel or other appropriate material, assembled together to form a constructional assembly of Honeycomb form secured by fixings that clamp together the sides of adjacent elements. Concrete, or other appropriate material, is disposed within the elements providing a composite type of action. Reinforcement is also present in the form of bars or tubes, providing extra strength to the assembled element. The novel type of modular construction has potential applications in the building, construction, substructure and highways sectors. It could be used as a permanent or temporary structure for roofs and walls. It may also be used for concrete pavements, tunnelling, and retaining wall structures.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 369

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 208 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 2
Author(s): 

SAIDANI M. | ROBERTS M.W.L.

Issue Info: 
  • Year: 

    2007
  • Volume: 

    8
  • Issue: 

    2
  • Pages: 

    125-132
Measures: 
  • Citations: 

    0
  • Views: 

    368
  • Downloads: 

    155
Abstract: 

The aim of the present paper is to reviews a novel modular constructional element for the building and construction industries that was patented by Coventry University. Modular elements have been used in the past in the construction of structures in order to speed construction and cut on time and cost. The modular element, the subject of this study, comprises hexagonal elements made of steel or other appropriate material, assembled together to form a constructional assembly of Honeycomb form secured by fixings that clamp together the sides of adjacent elements. Concrete, or other appropriate material, is disposed within the elements providing a composite type of action. Reinforcement is also present in the form of bars or tubes, providing extra strength to the assembled element. The novel type of modular construction has potential applications in the building, construction, substructure and highways sectors. It could be used as a permanent or temporary structure for roofs and walls. It may also be used for concrete pavements, tunneling, and retaining wall structures.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 368

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 155 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 2
Issue Info: 
  • Year: 

    2016
  • Volume: 

    1
Measures: 
  • Views: 

    193
  • Downloads: 

    252
Abstract: 

URANIUM ENRICHMENT ENGAGES UF6 GAS, WHICH IS PREPARED FROM U3O8 POWDER. U3O8 POWDER HAS BEEN PREPARED BY SOME METHODS LIKE: CHEMICAL TRANSPORT REACTIONS, SOLID –STATE THERMAL DECOMPOSITION OF A NEW DIOXIDOURANIUM (VI) COMPLEX, SURFACTANT TEMPLATING-CRYSTAL GROWTH TECHNIQUE. IN THIS RESEARCH, BY CONSTANT CURRENT DENSITY OF 5 MA.CM-2, WE USED GALVANOSTATIC ELECTRO-DEPOSITION TO SYNTHESIZE A SAMPLE OF UO3 BY A SIMPLE, FAST, AND CLEAN METHOD IN A CLOSED SYSTEM. AFTER DEPOSITION OF UO2 (OH) 2 AT ELECTRODE SURFACE, THE SAMPLE WAS SCRATCHED AND OXIDIZED BY THE THERMAL ANNEALING AT 300-700 °C TO FORM U3O8. POWDER. THE AS-PREPARED POWDER WAS ANALYSED BY XRD SYNTHESIS TO CONFIRM THAT THE PRODUCT WAS U3O8. THE SEM IMAGE SHOWED THE UNIQUE Honeycomb STRUCTURE.

Yearly Impact:   مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 193

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 252
Author(s): 

HOO FATT M.S. | PARK K.S.

Issue Info: 
  • Year: 

    2000
  • Volume: 

    31
  • Issue: 

    -
  • Pages: 

    889-899
Measures: 
  • Citations: 

    1
  • Views: 

    149
  • Downloads: 

    0
Keywords: 
Abstract: 

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 149

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 1 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
Issue Info: 
  • Year: 

    2024
  • Volume: 

    9
  • Issue: 

    4
  • Pages: 

    747-757
Measures: 
  • Citations: 

    0
  • Views: 

    13
  • Downloads: 

    0
Abstract: 

Let $G$ be a simple connected graph having finite number of vertices (nodes). Let a coloring game is played on the nodes of $G$ by two players, Alice and Bob alternately assign colors to the nodes such that the adjacent nodes receive different colors with Alice taking first turn. Bob wins the game if he is succeeded to assign k distinct colors in the neighborhood of some vertex, where k is the available number of colors. Otherwise, Alice wins. The game chromatic number of G is the minimum number of colors that are needed for Alice to win this coloring game and is denoted by $\chi_{g}(G)$. In this paper, the game chromatic number $\chi_{g}(G)$ for some interconnecting networks such as infinite Honeycomb network, elementary wall of infinite height and infinite octagonal network is determined. Also, the bounds for the game chromatic number $\chi_{g}(G)$ of infinite oxide network are explored.

Yearly Impact: مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic Resources

View 13

مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesDownload 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesCitation 0 مرکز اطلاعات علمی Scientific Information Database (SID) - Trusted Source for Research and Academic ResourcesRefrence 0
litScript
telegram sharing button
whatsapp sharing button
linkedin sharing button
twitter sharing button
email sharing button
email sharing button
email sharing button
sharethis sharing button