Three-dimensional element configurations for the discontinuous enrichment method for acoustics

2008 ◽  
Vol 78 (11) ◽  
pp. 1261-1291 ◽  
Author(s):  
Eran Grosu ◽  
Isaac Harari
Keyword(s):  
Three Dimensional ◽  
Enrichment Method ◽  
Discontinuous Enrichment ◽  
Dimensional Element

scholarly journals A macromodel substitute for simple prediction of the lateral behaviour of composite shear walls

2018 ◽  
Vol 51 (3) ◽  
pp. 115-126
Author(s):  
Farhad Behnamfar ◽  
Esmail Shakeri ◽  
Akbar Makhdoumi
Keyword(s):  
Steel Plate ◽  
Three Dimensional ◽  
Shear Walls ◽  
Lateral Force ◽  
Concrete Cover ◽  
Three Dimensional Model ◽  
Composite Wall ◽  
Dimensional Element ◽  
Composite Shear ◽  
Force Displacement

Composite shear wall is a structural component consisting of a steel plate connected using shear tabs to a reinforced concrete cover. The steel plate provides for stiffness, strength, and ductility and the concrete cover prevents the steel plate from buckling. In this paper, effects of steel plate's thickness, compressive strength and thickness of the concrete cover and spacing of the shear tabs on the characteristics of the wall in nonlinear lateral behaviour are evaluated and a macromodel substitute for the wall is developed. The macromodel is a generic lateral force-displacement rule for the wall with its characteristics as developed in this paper. Practical ranges of values are accounted for the parameters involved. Such an approach makes it possible to replace the very complicated and time-consuming three-dimensional model of the composite wall with a simple one-dimensional element following the nonlinear lateral force-displacement path as given in this paper.

Application of Finite Element Method of Composite Wall Insulation System

2012 ◽  
Vol 594-597 ◽  
pp. 2158-2161 ◽  
Author(s):  
Tao Cheng ◽  
Ke Qin Yan
Keyword(s):  
Thermal Stress ◽  
Three Dimensional ◽  
Stress Fields ◽  
Insulation System ◽  
Wall Model ◽  
Polystyrene Plate ◽  
Composite Wall ◽  
Simulation Results ◽  
Stress And Deformation ◽  
Dimensional Element

In this paper, the thermal stress characteristics of polystyrene plate - thin plaster wall are present. A three-dimensional element is selected to mesh the wall model, which can simulate the coupling effects of thermal stress and structural stress field. Thermal stress and deformation distribution are proposed after comparing and analyzing the two simulation results. Numerical simulation results indicate that: (1) Polystyrene plates thin plaster wall insulation system has very good thermal insulation properties；(2) Different stress fields concentrate significantly around windows and in the middle of wall especially around the windows. (3) The deformation of the polystyrene plate - thin plaster wall insulation system reach the maximum at the edge of the wall while the minimum in central.

Three-Dimensional Element Partition Method for Fracture Simulation

2016 ◽  
Vol 16 (3) ◽  
pp. 04015074 ◽  
Author(s):  
Zhennan Zhang ◽  
Deyong Wang ◽  
Xiurun Ge ◽  
Hong Zheng
Keyword(s):  
Three Dimensional ◽  
Fracture Simulation ◽  
Dimensional Element ◽  
Partition Method
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