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 Computation of Effective Elastic Properties Using a Three-Dimensional Semi-Analytical Approach for Transversely Isotropic Nanocomposites

2021 ◽  
Vol 11 (4) ◽  
pp. 1867
Author(s):  
Monica Tapia ◽  
Y. Espinosa-Almeyda ◽  
R. Rodríguez-Ramos ◽  
José A. Otero
Keyword(s):  
Finite Element Method ◽  
Finite Element ◽  
Elastic Properties ◽  
Three Dimensional ◽  
Transversely Isotropic ◽  
Geometrical Shape ◽  
Effective Elastic Properties ◽  
Periodic Cell ◽  
Local Problems ◽  
Element Method

A three-dimensional semi-analytical finite element method (SAFEM-3D) is implemented in this work to calculate the effective properties of periodic elastic-reinforced nanocomposites. Different inclusions are also considered, such as discs, ellipsoidals, spheres, carbon nanotubes (CNT) and carbon nanowires (CNW). The nanocomposites are assumed to have isotropic or transversely isotropic inclusions embedded in an isotropic matrix. The SAFEM-3D approach is developed by combining the two-scale asymptotic homogenization method (AHM) and the finite element method (FEM). Statements regarding the homogenized local problems on the periodic cell and analytical expressions of the effective elastic coefficients are provided. Homogenized local problems are transformed into boundary problems over one-eighth of the cell. The FEM is implemented based on the principle of the minimum potential energy. The three-dimensional region (periodic cell) is divided into a finite number of 10-node tetrahedral elements. In addition, the effect of the inclusion’s geometrical shape, volume fraction and length on the effective elastic properties of the composite with aligned or random distributions is studied. Numerical computations are developed and comparisons with other theoretical results are reported. A comparison with experimental values for CNW nanocomposites is also provided, and good agreement is obtained.

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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