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29 results on '"Truong, Dac Dung"'

1. A Study on the Pseudo-shakedown of Steel Plates Subjected to Repeated Slamming Pressures

Author

Huynh, Van Vu, Dang, Xuan-Phuong, Truong, Dac Dung, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Nguyen, Duy Cuong, editor, Hai, Do Trung, editor, Vu, Ngoc Pi, editor, Long, Banh Tien, editor, Puta, Horst, editor, and Sattler, Kai-Uwe, editor

Published
2024
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2. Accumulation of Permanent Deflection of Steel Plates Subjected to Repeated Slamming Impact Loadings

Author

Truong, Dac Dung, Huynh, Van Vu, Cho, Sang-Rai, Dang, Xuan-Phương, Duong, Hao Dinh, Chaari, Fakher, Series Editor, Gherardini, Francesco, Series Editor, Ivanov, Vitalii, Series Editor, Haddar, Mohamed, Series Editor, Cavas-Martínez, Francisco, Editorial Board Member, di Mare, Francesca, Editorial Board Member, Kwon, Young W., Editorial Board Member, Tolio, Tullio A. M., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Schmitt, Robert, Editorial Board Member, Xu, Jinyang, Editorial Board Member, Long, Banh Tien, editor, Ishizaki, Kozo, editor, Kim, Hyung Sun, editor, Kim, Yun-Hae, editor, Toan, Nguyen Duc, editor, Minh, Nguyen Thi Hong, editor, and Duc An, Pham, editor

Published
2024
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4. Numerical Investigation on the Damage Extents of Plates Due to Repeated Slamming Loads

Author

Truong, Dac Dung, Huynh, Van Vu, Nam, Quach Hoai, Dang, Xuan-Phuong, Tran, Tra Hung, Duong, Hao Dinh, Le, Nguyen Anh Vu, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Huang, Yo-Ping, editor, Wang, Wen-June, editor, Quoc, Hoang An, editor, Le, Hieu-Giang, editor, and Quach, Hoai-Nam, editor

Published
2023
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5. Prediction of Initial Crack Propagation Direction of Dissimilar Friction Stir Welded T-Joint

Author

Duong, Hao Dinh, Tran, Tra Hung, Dang, Xuan-Phuong, Quach, Nam Hoai, Truong, Dac Dung, Do, Nhu Huynh, Okazaki, Masakazu, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Huang, Yo-Ping, editor, Wang, Wen-June, editor, Quoc, Hoang An, editor, Le, Hieu-Giang, editor, and Quach, Hoai-Nam, editor

Published
2023
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6. A Study on Dynamic Response of Steel Plates Under Repeated Impacts

Author

Truong, Dac Dung, Cho, Sang-Rai, Huynh, Van Vu, Dang, Xuan-Phuong, Duong, Hao Dinh, Tran, Tra Hung, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Long, Banh Tien, editor, Kim, Hyung Sun, editor, Ishizaki, Kozo, editor, Toan, Nguyen Duc, editor, Parinov, Ivan A., editor, and Kim, Yun-Hea, editor

Published
2022
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7. Effect of Friction Stir Welding Speeds on Interface Formation of Dissimilar T-joint Aluminum Alloys

Author

Duong, Hao Dinh, Tran, Tra Hung, Okazaki, Masakazu, Van Phi, Thuyen, Truong, Dac Dung, Van Huynh, Vu, Quach, Nam Hoai, Cavas-Martínez, Francisco, Editorial Board Member, Chaari, Fakher, Series Editor, di Mare, Francesca, Editorial Board Member, Gherardini, Francesco, Series Editor, Haddar, Mohamed, Editorial Board Member, Ivanov, Vitalii, Series Editor, Kwon, Young W., Editorial Board Member, Trojanowska, Justyna, Editorial Board Member, Long, Banh Tien, editor, Kim, Hyung Sun, editor, Ishizaki, Kozo, editor, Toan, Nguyen Duc, editor, Parinov, Ivan A., editor, and Kim, Yun-Hea, editor

Published
2022
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8. Dynamic Response of Aluminum-Alloy Plates Subjected to Repeated Impacts

Author

Truong, Dac Dung, Le, Nguyen Anh Vu, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Nguyen, Duy Cuong, editor, Vu, Ngoc Pi, editor, Long, Banh Tien, editor, Puta, Horst, editor, and Sattler, Kai-Uwe, editor

Published
2022
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14. Mesh Refinement Investigation to Simulate Tip Vortex Cavitation under Non-Cavitating Conditions.

Author

Huynh, Le Hong Thai, Tran, Dinh Tu, and Truong, Dac Dung

Subjects
CAVITATION, ENVIRONMENTAL regulations, MODELS & modelmaking, PROPELLERS, COMPUTER simulation
Abstract

Marine propeller design requirements have risen in quantity and quality in recent decades. Reduced propeller cavitation is targeted to ensure that comfort requirements and environmental regulations are met. This paper presents the development of a mesh refinement process for the numerical prediction of tip vortex cavitation (TVC) using the commercial CFD package STAR-CCM+. Given the strong dependence on the mesh resolution within the areas of interest, mesh refinement and the use of field functions for adaptive meshing were demonstrated. The developed numerical model was substantiated against relevant published test data. Subsequently, the validated mesh refinement process was extended to scaled-up models representing medium- and full-scale propellers. The results showed that this process can be applied to CFD simulations to capture the minimum pressure within a tip vortex core. This process is also applicable to different types of hydrodynamic propulsors at both model scale and full scale. Additionally, the cavitation inception scaling law was evaluated for all small-scale and full-scale models, and it was found that the scaling parameter obtained using the developed refinement process was somewhat close to that obtained using existing methods. It is expected that the mesh refinement process developed in this study can be used to investigate the effect of scaling on tip vortex cavitation inception. [ABSTRACT FROM AUTHOR]

Published
2024
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15. A Study on Dynamic Response of Flat Stiffened Plates to Slamming Loads Considering Fluid-Structure Interaction

Author

Truong, Dac Dung, Jang, Beom-Seon, Ju, Han-Baek, Han, Sang Woong, Han, Sungkon, 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, Okada, Tetsuo, editor, Suzuki, Katsuyuki, editor, and Kawamura, Yasumi, editor

Published
2021
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26. Prediction of slamming pressure considering fluid-structure interaction. Part I: numerical simulations.

Author

Truong, Dac Dung, Jang, Beom-Seon, Ju, Han-Baek, and Han, Sang Woong

Subjects
FLUID-structure interaction, OFFSHORE structures, STRAIN hardening, COMPUTER simulation, FLUID flow, INVESTIGATION reports
Abstract

Marine structures are subjected to slamming loads characterised by high hydrodynamic pressure within short time durations. Such loads can cause local and global damages to structures. This paper, which is Part I in a series, reports a numerical investigation of slamming loads acting on flat stiffened plates and their dynamic response. The nonlinear explicit finite element code LS-Dyna with the Multi-Material Arbitrary Lagrangian-Eulerian (MMALE) solver was adopted to simulate the slamming impact on marine structures. The numerical method was validated by the relevant experimental data from the open literature in a comparison of slamming pressure and deflection data, as well as existing formulations. The Eulerian formulation was applied to describe the fluid flow, and a Lagrange formulation was employed to model flat stiffened plates. A penalty coupling algorithm was utilised to realise the fluid-structure interaction (FSI) between the plate and the fluid. Bilinear strain hardening with no strain-rate hardening and effect of the heat-affected zone (HAZ) were considered for the numerical simulation of the aluminum model, while nonlinear strain hardening and strain-rate hardening were adopted to verify the steel models. Effects of key influenced parameters such as water impact velocity, material behaviour, and air cushion on the slamming response were addressed accordingly. Additionally, a simulation of water hitting structure was proposed to investigate the slamming load characteristics acting on the bottom decks of offshore structures. As the next paper in this continuing series, Part II will present empirically derived formulations for prediction of slamming loads based on extensive parametric studies of actual scantlings of offshore structures, using the simulation methodology of water hitting proposed herein in Part I. [ABSTRACT FROM AUTHOR]

Published
2022
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