Finite element method

In this study, a new method for analyzing safety factor (Fs) of natural slopes was developed. Rigid-plastic constitutive equation for soil materials and a slope stability analysis framework were formulated to account for both soil properties and slope geometry (slope angle β and slope height H).

6p vibenya 31-12-2024 1 0   Download

This research aims to numerically simulate the performance of the tested PC utility poles using Applied Element Method (AEM) and Finite Element Method (FEM). The simulation results demonstrate that both AEM and FEM effectively reproduce the load-displacement relationship observed in the test. Additionally, this study discusses the material models employed in simulations, considering the limitations inherent in numerical modeling.

6p vibenya 31-12-2024 0 0   Download

Mục tiêu của luận án "Phân tích dao động cầu treo dân sinh và các giải pháp kiềm chế dao động" là nghiên cứu các đặc trưng dao động của cầu treo dây võng dân sinh dựa vào mô hình thực nghiệm và kết quả đo đạc dựa trên phương pháp nhận dạng dao động và phương pháp xử lý mô hình tính toán dao động; đề xuất phương pháp cập nhật mô hình (finite element model updating method) để xác định các tham số bất định của cầu treo dây võng dân sinh với độ chính xác cao;...

73p kimphuong1124 28-08-2023 11 4   Download

Mục tiêu của luận án "Phân tích dao động cầu treo dân sinh và các giải pháp kiềm chế dao động" là nghiên cứu các đặc trưng dao động của cầu treo dây võng dân sinh dựa vào mô hình thực nghiệm và kết quả đo đạc dựa trên phương pháp nhận dạng dao động và phương pháp xử lý mô hình tính toán dao động; đề xuất phương pháp cập nhật mô hình (finite element model updating method) để xác định các tham số bất định của cầu treo dây võng dân sinh với độ chính xác cao.

145p kimphuong1124 28-08-2023 13 7   Download

This thesis investigates the SPH capability available in the commercial Finite Element (FE) code LS-DYNA®, for water impact problems. Experiments have been conducted on rigid wedges impacting water, which were then simulated with the SPH method. Although certain limitations were experienced with the experimental results, a positive correlation was observed with the numerical technique, thus establishing SPH as a promising method for crashworthiness design.

176p runthenight07 01-03-2023 10 3   Download

This thesis derives closed form equations to describe electromagnetic device characteristics for a toroid, solenoid and a case study induction machine. By considering stored magnetic field energy, this approach allows the relationship between electrical, magnetic and kinetic energy to be quantified and analyzed in ways that allows improved accuracy compared with conventional magnetic circuit modeling methods. This thesis also provides insights into how geometric parameters impact energy transfer and operational characteristics of electromagnetic devices.

112p runthenight04 02-02-2023 8 2   Download

In this research, the isogeometric finite element method is used to discretise the displacement domain of strutures in the first step. The primal-dual algorithm based upon the von Mises yield criterion and a Newton-like iteration is used in the second step to solve optimization problem.

157p capheviahe28 01-03-2021 7 2   Download

Building approximation formulas using equivalentinclusion method to determine the effective values of the conductivity, the elastic modulus of compound-inclusion composite materials and applying numerical methods using finite elements (FE) calculated for some specific material models.

27p capheviahe26 25-01-2021 17 4   Download

Failure in power transformer can be catastrophic to electric systems, since transformers play a vital role in the power sector. Metallic particles in transformer oil lead to Partial discharge which can result in serious conditions.

8p lucastanguyen 01-06-2020 19 1   Download

The final goal of the work is to provide useful recommendations and guidelines for the design of a cold plug for the emergency draining system of a molten salt reactor. Some numerical thermal simulations were performed with ANSYS mechanical (Finite Element Method) to be compared with results of the experiments and to make extrapolations for a new component to be used in a reactor.

12p christabelhuynh 29-05-2020 36 3   Download

The current study measures the mechanical behavior of both natural and the monobloc elastomeric disc prosthesis (CadiscTM-L) by employing a finite element method (FEM) to study the fiber-reinforced constitutive formulation provided in the literature. The three-dimensional geometry was created by computed tomography (CT) scan imaging technique.

12p tohitohi 19-05-2020 11 1   Download

Linear matching method (LMM) is one of the effective numerical methods for the limit and shakedown analysis, which computes the converging upper series by solving iteratively linear elastic analysis with Young’s modulus varying in space.

14p tohitohi 19-05-2020 23 1   Download

This paper presents a numerical investigation on the flexural performance of a novel cementitious reinforced GEM-TECH material using finite element method. A discrete nonlinear FE model using the commercial software ANSYS was employed to model a steel-reinforced GEM-TECH beam.

12p tohitohi 19-05-2020 17 1   Download

In this study, a 3D finite element model of an intact mandible was used for the simulation of the movement of the lower jaw and analysis of the effects of TemporoMandibular Joint (TMJ) prosthesis replacement on the jaw movement. Seven bundles of muscle fibers were inserted in their appropriate positions following anatomical data.

10p tohitohi 19-05-2020 25 1   Download

This paper presents a study on the structural performance of a modified shear-head assembly for edge steel column embedded in reinforced concrete slab. The structural performance was investigated in terms of punching shear capacity of the reinforced concrete flat slab.

12p tohitohi 19-05-2020 19 1   Download

In this paper, a smoothed weighted function with the compact support is suggested to improve the numerical accuracy of blending elements for the extended finite element method (XFEM) applied to the crack problem.

14p tohitohi 19-05-2020 9 0   Download

In the present study, the flexural behavior of concrete beams reinforced with longitudinal rebars made of glass fiber reinforced polymer composites (GFRP), is studied using finite element method.

8p tohitohi 19-05-2020 16 0   Download

This paper is concerned with the vibration and stability analysis of thick rectangular plates resting on elastic foundation, which is distributed over the particular area of the plate. A two-parameter (Pasternak) model is considered to describe the elastic foundation.

18p tohitohi 19-05-2020 10 1   Download

This paper presents a numerical analysis of free vibration of thin circular and annular plate using finite element method. The first five natural frequencies are presented for uniform annular plates of various inner-to-outer radius ratios, with nine possible combinations of free, clamped and simply supported boundary conditions at the inner and outer edges of plates.

8p tohitohi 19-05-2020 30 2   Download

There are literally several studies accomplished to predict the fatigue life of leaf springs but estimation of fatigue life of a parabolic leaf spring by using CAE tools has not yet been executed in the past. Parabolic spring is an important component in a vehicle suspension system.

10p tohitohi 19-05-2020 25 1   Download