Duc-Duy Ho
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View article: A Proof-of-Concept Study of Stability Monitoring of Implant Structure by Deep Learning of Local Vibrational Characteristics
A Proof-of-Concept Study of Stability Monitoring of Implant Structure by Deep Learning of Local Vibrational Characteristics Open
This study develops a structural stability monitoring method for an implant structure (i.e., a single-tooth dental implant) through deep learning of local vibrational modes. Firstly, the local vibrations of the implant structure are identi…
View article: Structural Condition Assessment of Steel Anchorage Using Convolutional Neural Networks and Admittance Response
Structural Condition Assessment of Steel Anchorage Using Convolutional Neural Networks and Admittance Response Open
Structural damage in the steel bridge anchorage, if not diagnosed early, could pose a severe risk of structural collapse. Previous studies have mainly focused on diagnosing prestress loss as a specific type of damage. This study is among t…
View article: Analysis the change of vibration responses for tall building structure under earthquake
Analysis the change of vibration responses for tall building structure under earthquake Open
Along with the continuous progress of science and technology, the tall buildings in the world in general and in Vietnam in particular have been developing with the progress of height as well as complexity. As the height of the building inc…
View article: Identification of Tension Force in Cable Structures Using Vibration-Based and Impedance-Based Methods in Parallel
Identification of Tension Force in Cable Structures Using Vibration-Based and Impedance-Based Methods in Parallel Open
For cable structures, the tension force is one of the main factors showing the structure’s health. If the tension force falls below a safe level during construction or operation, it can lead to partial or complete the structural failure, p…
View article: Study on detecting deterioration in beam structure stiffness using deformed shape
Study on detecting deterioration in beam structure stiffness using deformed shape Open
This study presents a diagnostic technique for identifying the loss of stiffness of homogeneous beams using only the deformed shape in an effort to develop more effective building health monitoring instruments. Method based on a correlatio…
View article: Identification of Simulated Damage in Prestressed Anchorage Using Admittance-Based Active Sensing Technique
Identification of Simulated Damage in Prestressed Anchorage Using Admittance-Based Active Sensing Technique Open
This study examined the feasibility of the admittance-based method for detecting simulated damage in the bearing plate of a prestressed anchorage. The proposed method utilized the PZT (lead zirconate titanate) interface technique to acquir…
View article: Crack Detection in Bearing Plate of Prestressed Anchorage Using Electromechanical Impedance Technique: A Numerical Investigation
Crack Detection in Bearing Plate of Prestressed Anchorage Using Electromechanical Impedance Technique: A Numerical Investigation Open
The bearing plate is an important part of a tendon–anchorage subsystem; however, its function and safety can be compromised by factors such as fatigue and corrosion. This paper explores the feasibility of the electromechanical impedance (E…
View article: A method for automated bolt-loosening monitoring and assessment using impedance technique and deep learning
A method for automated bolt-loosening monitoring and assessment using impedance technique and deep learning Open
Traditional impedance-based bolt-looseness monitoring approaches using hand-crafted impedance features can lead to difficulties in quantitative damage severity estimation. In this study, a novel method for bolt-looseness assessment with au…
View article: Crack detection in reinforced concrete beams under loading using deformed shape curvature method
Crack detection in reinforced concrete beams under loading using deformed shape curvature method Open
Structural health monitoring (SHM) helps to detect anomalies on the structure early, thereby creating favorable conditions for repairing or replacing damaged components in a timely manner, estimating the remaining life of the building, and…
View article: Regularized local damage model for quasi-brittle material
Regularized local damage model for quasi-brittle material Open
This paper presents an improved local damage model for quasi-brittle materials. A parameter, namely damage, in the range [0,1] is used to characterize the material from intact state to complete failure. Classical local damage model is know…
View article: Fault Assessment in Piezoelectric-Based Smart Strand Using 1D Convolutional Neural Network
Fault Assessment in Piezoelectric-Based Smart Strand Using 1D Convolutional Neural Network Open
The smart strand technique has been recently developed as a cost-effective prestress load monitoring solution for post-tensioned engineering systems. Nonetheless, during its lifetime under various operational and environmental conditions, …
View article: Electromechanical impedance-based prestress force prediction method using resonant frequency shifts and finite element modelling
Electromechanical impedance-based prestress force prediction method using resonant frequency shifts and finite element modelling Open
View article: Piezoelectric Impedance-Based Structural Health Monitoring of Wind Turbine Structures: Current Status and Future Perspectives
Piezoelectric Impedance-Based Structural Health Monitoring of Wind Turbine Structures: Current Status and Future Perspectives Open
As an innovative technology, the impedance-based technique has been extensively studied for the structural health monitoring (SHM) of various civil structures. The technique’s advantages include cost-effectiveness, ease of implementation o…
View article: UTILIZATION OF THE INFLUENCE LINE OF DISPLACEMENT TO IDENTIFY A DECLINE IN THE STIFFNESS OF BEAMS
UTILIZATION OF THE INFLUENCE LINE OF DISPLACEMENT TO IDENTIFY A DECLINE IN THE STIFFNESS OF BEAMS Open
The purpose of this work is to offer a method for detecting structural damage utilizing the standardized index of the beam’s deflection influence line difference as input data for the evaluation procedure. The displacement influence line u…
View article: Damage localization in reinforced concrete beams strengthened with FRP sheets using modal strain energy method
Damage localization in reinforced concrete beams strengthened with FRP sheets using modal strain energy method Open
Civil structures are affected by many different factors from the environment, loads, aging of materials, … These factors are uncertain variables and affect the health of the structures. Therefore, structural health monitoring (SHM) is very…
View article: Structural Damage Localization in Plates Using Global and Local Modal Strain Energy Method
Structural Damage Localization in Plates Using Global and Local Modal Strain Energy Method Open
This paper presents an improvement to the modal strain energy (MSE) method for identifying structural damages in plate‐type structures. A two‐step MSE‐based damage localization procedure, including a global step and a local step, is newly …
View article: Numerical Simulation of Single-Point Mount PZT-Interface for Admittance-Based Anchor Force Monitoring
Numerical Simulation of Single-Point Mount PZT-Interface for Admittance-Based Anchor Force Monitoring Open
This study investigates the dynamic characteristics of a smart PZT interface mounted on a prestressed anchorage to verify the numerical feasibility of the admittance-based anchor force monitoring technique. Firstly, the admittance-based an…
View article: A Low-Cost Prestress Monitoring Method for Post-Tensioned RC Beam Using Piezoelectric-Based Smart Strand
A Low-Cost Prestress Monitoring Method for Post-Tensioned RC Beam Using Piezoelectric-Based Smart Strand Open
This study proposes a cost-effective prestress monitoring method for post-tensioned reinforced concrete (RC) beams using a smart strand. Firstly, the concept of a piezoelectric-based smart strand and its implementation for prestress force …
View article: An Image-Based Algorithm for the Automatic Detection of Loosened Bolts
An Image-Based Algorithm for the Automatic Detection of Loosened Bolts Open
The bolted joint has been widely used to connect load-bearing elements in aerospace, civil, and mechanical engineering systems. During its service life, particularly under external dynamical loads, a bolted joint may undergo self-loosening…
View article: Anchor Force Monitoring Using Impedance Technique with Single-Point Mount Lead-Zirconate-Titanate Interface: A Feasibility Study
Anchor Force Monitoring Using Impedance Technique with Single-Point Mount Lead-Zirconate-Titanate Interface: A Feasibility Study Open
As a key load-bearing element in a prestressed structure, the anchor should be appropriately monitored to secure its as-built prestressing force. In previous studies, the impedance-based prestress force monitoring technique through a mount…
View article: Correction: Pham et al. Bolt-Loosening Monitoring Framework Using an Image-Based Deep Learning and Graphical Model. Sensors 2020, 20, 3382
Correction: Pham et al. Bolt-Loosening Monitoring Framework Using an Image-Based Deep Learning and Graphical Model. Sensors 2020, 20, 3382 Open
The authors wish to make the following correction to this paper [...]
View article: Ảnh hưởng của mức độ liên kết kháng cắt đến ứng xử uốn của dầm liên hợp thép – bê tông sử dụng liên kết kháng cắt dạng Perfobond: Phương pháp thực nghiệm
Ảnh hưởng của mức độ liên kết kháng cắt đến ứng xử uốn của dầm liên hợp thép – bê tông sử dụng liên kết kháng cắt dạng Perfobond: Phương pháp thực nghiệm Open
Hai mẫu dầm liên hợp kích thước lớn sử dụng liên kết Perfobond được thí nghiệm để khảo sát ứng xử uốn của dầm. Dầm thép có tiết diện T ngược và liên kết kháng cắt dạng Perfobond được gắn với nhau dọc theo chiều dài dầm liên hợp thép – bê t…
View article: Crack Detection in Plate‐Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions
Crack Detection in Plate‐Like Structures Using Modal Strain Energy Method considering Various Boundary Conditions Open
Among vibration‐based damage detection methods, one of the effective approaches for damage localization is the modal strain energy method. In this paper, the modal strain energy method is developed for damage detection in plate‐like struct…
View article: Structural damage detection in steel frames using modal strain energy method and genetic algorithm
Structural damage detection in steel frames using modal strain energy method and genetic algorithm Open
In recent years, the field of structural health monitoring (SHM) has been receiving the attention of many researchers. In particular, vibration-based structural damage detection methods have proven to be highly effective in civil engineeri…
View article: Chẩn đoán tổn hao lực ứng suất trước trong vùng neo cáp sử dụng đáp ứng trở kháng cơ-điện
Chẩn đoán tổn hao lực ứng suất trước trong vùng neo cáp sử dụng đáp ứng trở kháng cơ-điện Open
Trong bài báo này, một mô phỏng số để chẩn đoán tổn hao lực ứng suất trước trong vùng neo cáp của kết cấu bê tông cốt thép ứng suất trước sử dụng đáp ứng trở kháng cơ-điện được giới thiệu. Đầu tiên, lý thuyết về đáp ứng trở kháng cơ-điện s…
View article: Bolt-Loosening Monitoring Framework Using an Image-Based Deep Learning and Graphical Model
Bolt-Loosening Monitoring Framework Using an Image-Based Deep Learning and Graphical Model Open
In this study, we investigate a novel idea of using synthetic images of bolts which are generated from a graphical model to train a deep learning model for loosened bolt detection. Firstly, a framework for bolt-loosening detection using im…
View article: Structural Health Monitoring of Prestressed Concrete Beams by Vibration- and Impedance-based Smart Technologies
Structural Health Monitoring of Prestressed Concrete Beams by Vibration- and Impedance-based Smart Technologies Open
In this study, vibration- and impedance-based smart technologies are presented for structural health monitoring (SHM) of prestressed concrete (PSC) beams. The following approaches are implemented in order to achieve the objective. Firstly,…
View article: Sensor Fault Diagnosis for Impedance Monitoring Using a Piezoelectric-Based Smart Interface Technique
Sensor Fault Diagnosis for Impedance Monitoring Using a Piezoelectric-Based Smart Interface Technique Open
For a structural health monitoring (SHM) system, the operational functionality of sensors is critical for successful implementation of a damage identification process. This study presents experimental and analytical investigations on senso…
View article: Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections
Sensitivity of Piezoelectric-Based Smart Interfaces to Structural Damage in Bolted Connections Open
This study presents a set of experimental and numerical investigations to study the sensitivity of the piezoelectric-based smart interface device to structural damage in a bolted connection. The study aims to identify the proper geometric …
View article: Advances in Smart Technologies for Structural Health Monitoring of Cable-stayed Bridges
Advances in Smart Technologies for Structural Health Monitoring of Cable-stayed Bridges Open
This study deals with the general problem of developing smart technologies for vibration and impedance-based structural health monitoring (SHM) of cable-stayed bridges. The following approaches are implemented to achieve the objective. Fir…