Search

Your search keyword '"Hien, Ta Duy"' showing total 16 results
Start Over Author "Hien, Ta Duy"
16 results on '"Hien, Ta Duy"'

1. Stochastic Higher-order Finite Element Model for the Free Vibration of a Continuous Beam resting on Elastic Support with Uncertain Elastic Modulus

Author

Hien Ta Duy, Nguyen Dang Diem, Giap Van Tan, Vu Van Hiep, and Nguyen Van Thuan

Subjects
SFEM, free vibration, continuous beam, random field, Engineering (General). Civil engineering (General), TA1-2040, Technology (General), T1-995, Information technology, T58.5-58.64
Abstract

This paper deals with a continuous beam resting on elastic support with elastic modulus derived from a random process. Governing equations of the stochastic higher-order finite element method of the free vibration of the continuous beam were derived from Hamilton's principle. The random process of elastic modulus was discretized by averaging random variables in each element. A solution for the stochastic eigenvalue problem for the free vibration of the continuous beam was obtained by using the perturbation technique, in conjunction with the finite element method. Spectral representation was used to generate a random process and employ the Monte Carlo simulation. A good agreement was obtained between the results of the first-order perturbation technique and the Monte Carlo simulation.

Published
2023
Full Text
View/download PDF

2. Evaluation of Response Variability of Euler–Bernoulli Beam Resting on Foundation Due to Randomness in Elastic Modulus

Author

Hien, Ta Duy, Nguyen, Phu-Cuong, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Reddy, J. N., editor, Luong, Van Hai, editor, and Le, Anh Tuan, editor

Published
2020
Full Text
View/download PDF

3. Investigation Into The Response Variability of A Higher-Order Beam Resting on A Foundation Using A Stochastic Finite Element Method

Author

Hien, Ta Duy, Thanh, Bui Tien, Long, Nguyen Ngoc, Van Thuan, Nguyen, Hang, Do Thi, di Prisco, Marco, Series Editor, Chen, Sheng-Hong, Series Editor, Vayas, Ioannis, Series Editor, Kumar Shukla, Sanjay, Series Editor, Sharma, Anuj, Series Editor, Kumar, Nagesh, Series Editor, Wang, Chien Ming, Series Editor, Ha-Minh, Cuong, editor, Dao, Dong Van, editor, Benboudjema, Farid, editor, Derrible, Sybil, editor, Huynh, Dat Vu Khoa, editor, and Tang, Anh Minh, editor

Published
2020
Full Text
View/download PDF

12. Reinforcing cementitious material using single-walled carbon nanotube - nylon 66 nanofibers

Author

Nguyen Xuan Tung, Hien Ta Duy, N M Nguyen Tri, and J Kim Jung

Subjects
Nylon 66, chemistry.chemical_compound, Materials science, chemistry, law, Nanofiber, Carbon nanotube, Cementitious, Composite material, law.invention
Abstract

Based on the increase in tensile strength and toughness (43% and 30%, respectively), the feasibility of the hybrid nanofibers containing Single-walled carbon nanotubes and Nylon 66 on reinforcing cementitious materials has been clarified. The well-linking effect of nanofibers in the microstructure of hardened cement pastes has been found by scanning electron microscope (SEM) analysis and well-explained for the increase in mechanical strengths. Besides, field emission transmission electron microscope (FE-TEM) analysis has also been conducted to analyze the properties of the hybrid nanofibers.

Published
2020

13. Stochastic Free Vibration Analysis of Beam on Elastic Foundation with the Random Field of Young’s Modulus Using Finite Element Method and Monte Carlo Simulation

Author

Thuan Nguyen Van, Phu-Cuong Nguyen, and Hien Ta Duy

Subjects
Vibration, Physics, symbols.namesake, Random field, Iterative method, Mathematical analysis, Monte Carlo method, symbols, Young's modulus, Elastic modulus, Finite element method, Gaussian random field
Abstract

This work presents the Monte Carlo simulation based on finite element analysis to investigate the natural frequencies of the beam on an elastic foundation with uncertain material. The elastic modulus is assumed as a homogeneous Gaussian random field. The random field is generated based on the spectral representation method. An iterative algorithm is employed using the finite element method to calculate natural frequencies with various the generated functions of elastic modulus. The effects of the random field on the response variability of natural frequencies and the effects of foundation coefficients are discussed in detail.

Published
2021

14. Eigen analysis of functionally graded beams with variable cross-section resting on elastic supports and elastic foundation

Author

Hien Ta Duy, Thuan Nguyen Van, and Hyuk-Chun Noh

Subjects
Materials science, business.industry, Mechanical Engineering, Mathematical analysis, Modulus, Building and Construction, Structural engineering, Functionally graded material, Finite element method, Vibration, Cross section (physics), Mechanics of Materials, Spring (device), Physics::Accelerator Physics, Closed-form expression, business, Beam (structure), Civil and Structural Engineering
Abstract

The free vibration of functionally graded material (FGM) beams on an elastic foundation and spring supports is investigated. Young\'s modulus, mass density and width of the beam are assumed to vary in thickness and axial directions respectively following the exponential law. The spring supports are also taken into account at both ends of the beam. An analytical formulation is suggested to obtain eigen solutions of the FGM beams. Numerical analyses, based on finite element method by using a beam finite element developed in this study, are performed in order to show the legitimacy of the analytical solutions. Some results for the natural frequencies of the FGM beams are given considering the effect of various structural parameters. It is also shown that the spring supports show the greatest effect on the natural frequencies of FGM beams.

Published
2014

Catalog

Books, media, physical & digital resources
See catalog results