Energy Dissipation of Rayleigh Waves due to Absorption Along the Path by the Use of Finite Element Method

1979 ◽  
Author(s):  
Eugene Herrin ◽  
Tom Goforth ◽  
Ali A. Feizpour
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Energy Dissipation ◽  
Rayleigh Waves ◽  
Element Method

Response of thermal source in transversely isotropic thermoelastic materials without energy dissipation and with two temperatures

2014 ◽  
Vol 92 (11) ◽  
pp. 1305-1311 ◽  
Author(s):  
Ibrahim A. Abbas ◽  
Rajneesh Kumar ◽  
Lajvinder Singh Reen
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Energy Dissipation ◽  
Transversely Isotropic ◽  
Thermal Source ◽  
Numerical Work ◽  
Special Cases ◽  
Two Temperatures ◽  
Without Energy Dissipation ◽  
Element Method

A two-dimensional problem in a transversely isotropic thermoelastic medium without energy dissipation and with two temperatures due to a thermal source is investigated. As an application of the problem, a particular type of continuous thermal source has been taken to illustrate the utility of the approach. The problem is solved numerically by using a finite element method. The displacement components, conductive temperature, and stress components have been obtained numerically and illustrated graphically for our particular model. Some special cases of interest are also discussed. The implementation of finite element method codes used C++. Numerical work is also performed for a suitable material with the aim of illustrating the results.

scholarly journals MATHEMATICAL MODELING OF NON-STATIONARY ELASTIC WAVES STRESSES UNDER A CONCENTRATED VERTICAL EXPOSURE IN THE FORM OF DELTA FUNCTIONS ON THE SURFACE OF THE HALF-PLANE (LAMB PROBLEM)

2019 ◽  
Vol 15 (2) ◽  
pp. 111-124
Author(s):  
Vyacheslav Musayev
Keyword(s):  
Numerical Simulation ◽  
Finite Element Method ◽  
Finite Element ◽  
Free Surface ◽  
Boundary Conditions ◽  
Half Plane ◽  
Rayleigh Waves ◽  
The Finite Element Method ◽  
Initial And Boundary Conditions ◽  
Element Method

The problem of numerical simulation of longitudinal, transverse and surface waves on the free surface of an elastic half-plane is considered. The change of the elastic contour stress on the free surface of the half­plane is given. To solve the two-dimensional unsteady dynamic problem of the mathematical theory of elasticity with initial and boundary conditions, we use the finite element method in displacements. Using the finite element method in displacements, a linear problem with initial and boundary conditions resulted in a linear Cauchy prob­lem. Some information on the numerical simulation of elastic stress waves in an elastic half-plane under concen­trated wave action in the form of a Delta function is given. The amplitude of the surface Rayleigh waves is sig­nificantly greater than the amplitudes of longitudinal, transverse and other waves with concentrated vertical ac­tion in the form of a triangular pulse on the surface of the elastic half-plane. After the surface Rayleigh waves there is a dynamic process in the form of standing waves.

scholarly journals Analisis Tegangan Regangan dan Defleksi pada Sambungan Balok-Kolom Beton Bertulang Menggunakan Beban Statik

2019 ◽  
Vol 24 (2) ◽  
pp. 122
Author(s):  
Hakas Prayuda ◽  
Martyana Dwi Cahyati ◽  
Bagus Soebandono
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Precast Concrete ◽  
Crack Pattern ◽  
Static Loads ◽  
Connection Type ◽  
Element Method

Reinforced concrete is commonly used in any infrastructures. In building, it can be applied for beam and column separately, but the joints between those elements in this type of structure might be vulnerable due to the strength compared to the element itselft. In this study, some parameters namely ductility, stiffness, and energy dissipation of beam-column connection in precast concrete will be examined using finite element method. Six samples in this experiment are made considering some variations such as connection type in interior and exterios condition, round-shaped and rectanguler-shaped of column, and T-shaped and rectanguler-shaped of beam. Static loads were given in the middle of the beam and column so that the crack pattern can be obtained. From this experiment, it will be known the best and suitable joints by observing those three parmeters.

Study on External Wall Panel of Industrialized Housing and Seismic Behavior of Connection Joint

2012 ◽  
Vol 204-208 ◽  
pp. 2394-2398
Author(s):  
Jing Hai Yu ◽  
Gang Zhang ◽  
Jiu Peng Li
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Reinforced Concrete ◽  
Energy Dissipation ◽  
Seismic Behavior ◽  
Rational Design ◽  
Wall Panel ◽  
External Wall ◽  
Strength And Stiffness ◽  
Element Method

The lateral performance of a typical reinforced concrete external wall panel is analyzed by finite element method and the analysis results show that the reinforced concrete external wall panel has a certain strength and stiffness in its own plane. In order to rational use the strength and stiffness of the wall panel, a new type of energy dissipation connector is designed based on passive energy dissipation. The energy dissipation connector is analyzed by finite element method and the analysis results show that this energy dissipation connector has ideal hysteresis curve. The energy dissipation connector can improve the seismic behavior of main structure through rational design.

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