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Browsing Maroun Semaan Faculty of Engineering and Architecture (MSFEA) by Subject "Damage detection"

Now showing items 1-20 of 20

A Bayesian approach for damage assessment in welded structures using Lamb-wave surrogate models and minimal sensing

Fakih, Mohammad Ali H.; Chiachío, Manuel; Chiachío, Juan; Mustapha, Samir A. (Elsevier Ltd, 2022)

The increasing mechanical and economical demands in modern systems and structures are forcing an inevitable need for joining dissimilar materials, thus creating the challenge of establishing a process to inspect and monitor ...
Advanced characterization of asphalt concrete mixtures reinforced with synthetic fibers

Kassem, Hussein A.; Saleh, Nooralhuda F.; Zalghout, Ali A.; Chehab, Ghassan R. (American Society of Civil Engineers (ASCE), 2018)

This study evaluates the behavior of fiber-reinforced asphalt mixtures using advanced material characterization and performance prediction models. The polymeric nature of the proprietary blend of polyolefin and aramid ...
Condition assessment of timber utility poles using ultrasonic guided waves

El Najjar, Jad; Mustapha, Samir A. (Elsevier Ltd, 2021)

In this study, guided stress waves were used to evaluate the conditions of a timber utility pole experimentally and numerically using COMSOL Multiphysics. Macro Fiber Composites (MFCs), due to their flexibility and convenience ...
Damage identification of a concrete arch beam based on frequency response functions and artificial neural networks

Nguyen, Van Vu; Dackermann, Ulrike; Li, Jianchun; Alamdari, Mehrisadat Makki; Mustapha, Samir A.; Runcie, Peter; Ye, Lin (Department of Civil and Environmental Engineering, 2015)

This paper presents a vibration-based structural health monitoring (SHM) technique for the identification of damage in a concrete arch beam replica section of the Sydney Harbour Bridge. The proposed technique uses residual ...
Detection and assessment of flaws in friction stir welded joints using ultrasonic guided waves: experimental and finite element analysis

Fakih, Mohammad Ali H.; Mustapha, Samir A.; Tarraf, Jaafar; Ayoub, Georges A.; Hamade, Ramsey F. (Academic Press, 2018)

Ultrasonic guided waves (GWs), e.g. Lamb waves, have been proven effective in the detection of defects such as corrosion, cracking, delamination, and debonding in both composite and metallic structures. They are a significant ...
Frequency domain decomposition-based multisensor data fusion for assessment of progressive damage in structures

Alamdari, Mehrisadat Makki; Anaissi, Ali; Khoa, Nguyen Lu Dang; Mustapha, Samir A. (John Wiley and Sons Ltd, 2019)

In this paper, we focused on the development and verification of a solid and robust framework for structural condition assessment of real-life structures using measured vibration responses, with the presence of multiple ...
Lessons Learned

Mueller, Kevin A.; Hantouche, Elie G.; Misselbrook, Nicolas K. (American Society of Civil Engineers (ASCE), 2020)

On August 4, 2020, just after 6 p.m., an intense fire broke out at Hangar 12 in the Port of Beirut. Unbeknownst to the nearly 100,000 people who lived within 1.6 km of the warehouse, Hangar 12 was storing everything needed ...
Multisource data fusion for classification of surface cracks in steel pipes

Mustapha, Samir A.; Braytee, Ali; Ye, Lin (American Society of Mechanical Engineers (ASME), 2018)

This paper focuses on the development and validation of a robust framework for surface crack detection and assessment in steel pipes based on measured vibration responses collected using a network of piezoelectric (PZT) ...
Optimal Sensor Placement Using a Combined Genetic Algorithm-Ensemble Kalman Filter Framework

Nasr, Dana E.; Saad, George A. (American Society of Civil Engineers (ASCE), 2017)

With recent technological advances, the deployment of monitoring devices in structures is becoming more abundant. In an ideal scenario, one would deploy sensors on every corner of a structure, but the problem of dealing ...
Optimization of piezoelectric wafer placement for structural health-monitoring applications

Tarhini, Hussein; Itani, Rafic; Fakih, Mohammad Ali H.; Mustapha, Samir A. (SAGE Publications Ltd, 2018)

Optimization of the number and location of piezoelectric wafers used in sensor networks for continuous monitoring of automotive and aerospace structures is not yet fully developed. This article presents a novel approach ...
Optimization of placement of piezoelectric wafers based on a hybrid model using pitch-catch and pulse-echo configurations

Saad, Karen; Tarhini, Hussein; Harb, Mohammad Said; Mustapha, Samir A. (SAGE Publications Ltd, 2022)

The development of Structural Health Monitoring (SHM) systems and integration in our structures is a necessity. It has proven to provide a robust and low-cost solution for monitoring structural integrity and can predict ...
Optimization of PZT Wafers’ placement with enhanced level of robustness using multiple interacting networks

Ismail, Zainab; Mustapha, Samir A.; Tarhini, Hussein (Academic Press, 2023)

Continuous monitoring and in particular structural health monitoring (SHM) of structures is used, nowadays, by asset managers to ensure a high level of safety and extend the lifetime of their assets. One of the main ...
Pattern recognition based on time series analysis using vibration data for structural health monitoring in civil structures

Mustapha, Samir A.; Hu, Y.; Khoa, Nguyen Lu Dang; Alamdari, Mehrisadat Makki; Runcie, Peter; Dackermann, Ulrike; Nguyen, Van Vu; Li, Jianchun; Ye, Lin (Department of Civil and Environmental Engineering, 2015)

A statistical pattern recognition technique was developed based on the time series analysis to detect cracking in steel reinforced concrete structures using vibration measurements. The technique has been developed for the ...
Propagation behaviour of guided waves in tapered sandwich structures and debonding identification using time reversal

Mustapha, Samir A.; Ye, Lin (Elsevier B.V., 2015)

Fundamental symmetric and anti-symmetric Lamb wave modes are characterised in terms of their velocity and magnitude variation as they encounter a gradual change in the thickness of a composite sandwich plate with a high ...
Robust Localization and Classification of Barely Visible Indentations in Composite Structures by Fusion of Ultrasonic Damage Indices

Fakih, Mohammad Ali H.; Mustapha, Samir A.; Abdul-Aziz, Ali H. (American Society of Mechanical Engineers (ASME), 2019)

This study aims to detect, localize, and assess the severity of barely visible indentation damage in a composite sandwich structure using ultrasonic guided waves. A quasistatic loading was gradually applied on a specimen ...
Sensor placement optimization on complex and large metallic and composite structures

Ismail, Zainab; Mustapha, Samir A.; Fakih, Mohammad Ali H.; Tarhini, Hussein (SAGE Publications Ltd, 2020)

This study presents an effective solution for the optimization of piezoelectric (PZT) wafer placement in a network of convex and non-convex structures, toward the application in the field of structural health monitoring. ...
Spectral-based damage identification in structures under ambient vibration

Alamdari, Mehrisadat Makki; Samali, Bijan; Li, Jianchun; Kalhori, Hamed; Mustapha, Samir A. (American Society of Civil Engineers (ASCE), 2016)

The motivation behind this paper is to develop a spectral-based damage detection and damage localization scheme using in-service ambient vibration in the context of non-model-based damage characterization. In this regard, ...
Structural condition assessment using entropy-based time series analysis

Alamdari, Mehrisadat Makki; Samali, Bijan; Li, Jianchun; Lu, Ye; Mustapha, Samir A. (SAGE Publications Ltd, 2017)

We present a time-series-based algorithm to identify structural damage in the structure. The method is in the context of non-model-based approaches; hence, it eliminates the need of any representative numerical model of ...
Symbolic dynamics time series analysis for assessment of barely visible indentation damage in composite sandwich structures based on guided waves

Fakih, Mohammad Ali H.; Mustapha, Samir A.; Alamdari, Mehrisadat Makki; Ye, Lin (SAGE Publications Ltd, 2017)

This study addresses the detection and localization of barely visible indentation damage in composite sandwich structures using ultrasonic guided waves. A quasi-static loading was gradually applied on a specimen of carbon ...
Uncertainty quantification for structural health monitoring applications

Nasr, Dana E.; Slika, Wael G.; Saad, George A. (Techno-Press, 2018)

The difficulty in modeling complex nonlinear structures lies in the presence of significant sources of uncertainties mainly attributed to sudden changes in the structure's behavior caused by regular aging factors or extreme ...

Now showing items 1-20 of 20

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Browsing Maroun Semaan Faculty of Engineering and Architecture (MSFEA) by Subject "Damage detection"

Browsing Maroun Semaan Faculty of Engineering and Architecture (MSFEA) by Subject "Damage detection"

Search AUB ScholarWorks

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All of AUB ScholarWorks

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Copyright Statement