Results 81 to 90 of about 1,822,978 (208)

On Transducers Localization in Damage Detection by Wave Propagation Method

Sensors, 2019
In this paper, the elastic wave propagation method was used in damage detection in thin structures. The effectiveness and accuracy of the system based on the wave propagation phenomenon depend on the number and localization of the sensors.
Adam Stawiarski, Aleksander Muc
doaj   +1 more source

Research on Damage Detection of Dual-Rotor Synchronous Excitation Mine Screen Beams Based on Strain Mode Difference Vibration Mode Analysis

Sensors
The frame beam structure of the mine screen, subjected to various excitations, is a critical component of mining machinery. Its stress is intricate, the operational environment is severe, and damage can lead to catastrophic failures resulting in ...
Xiaohao Li, Yahui Wang, Yang Zhou
doaj   +1 more source

Modeling, Simulation, Experimentation, and Compensation of Temperature Effect in Impedance-Based SHM Systems Applied to Steel Pipes

Sensors, 2019
Pipelines have been widely used for the transportation of chemical products, mainly those related to the petroleum industry. Damage in such pipelines can produce leakage with unpredictable consequences to the environment.
Rothschild A. Antunes, Nicolás E. Cortez, Bárbara M. Gianesini, Jozue Vieira Filho   +3 more
doaj   +1 more source

A Study of Concrete Slab Damage Detection Based on the Electromechanical Impedance Method

Sensors, 2014
Piezoelectric lead zirconate titanate (PZT) is being gradually applied into practice as a new intelligent material for structural health monitoring. In order to study the damage detection properties of PZT on concrete slabs, simply supported reinforced ...
Xianyan Hu, Hongping Zhu, Dansheng Wang
doaj   +1 more source

Experimental evaluation of three leak detection and location concepts for space stations [PDF]

Three leak (or precursor damage modes) detection and location concepts for space station overboard leakage were evaluated experimentally. The techniques are: (1) static and dynamic seal leak detector sensing of moisture or all gases in space cabin ...
Kazokas, G. P., Mackallor, D. C., Mastandrea, J. R., Scherb, M. V., Zelik, J. A.   +4 more
core   +1 more source

Numerical and experimental studies on vibration-based damage detection methods in beam structures

Journal of Materials and Engineering Structures
Vibration-based damage detection (VBDD) methods have emerged as powerful, cost-effective, and non-destructive methods for detecting and assessing damage in structures.
Duong Huong NGUYEN, Nhu Mai Thi NGUYEN
doaj  

Development of Delamination Detection System for Concrete Decks by Using Convolutional Neural Network

Proceedings, 2018
Bridges in Japan, especially those managed by municipalities, deteriorate over time. Due to lack of civil engineers in municipalities, appropriate and automated assistance for degradation judgement is thought to be important for the concerned authorities.
Takahiro Kashiwa, Kohei Nagai, Hitoshi Tatsuta, Helmut Prendinger, Kou Ibayashi, Juan José Rubio Guillamón   +5 more
doaj   +1 more source

Development of probability of detection data for structural health monitoring damage detection techniques based on acoustic emission [PDF]

, 2013
Structural Health Monitoring (SHM) techniques have been developed as a cost effective alternative to currently adopted Non-Destructive Testing (NDT) methods which have well understood levels of performance. Quantitative performance assessment, as used in
Foote, Peter, Gagar, Daniel, Irving, Phil E., Jennions, Ian K., McFeat, Jim, Read, Ian   +5 more
core  

Advanced Damage Monitoring in Beam Structures Using Grey Wolf Optimizer and Additional Masses

Buildings
Dynamic characteristics are of significant interest to researchers in the field of damage detection. Among these, natural frequencies stand out due to their high accuracy and resistance to noise.
Abdallah Salama, Alaa El-Sisi, Atef Eraky, Shimaa Emad   +3 more
doaj   +1 more source

Providing structural modules with self-integrity monitoring [PDF]

With the advent of complex space structures (i.e., U.S. Space Station), the need for methods for remotely detecting structural damage will become greater. Some of these structures will have hundreds of individual structural elements (i.e., strut members).
Ibanez, P., Walton, W. B., Yessaie, G.
core   +1 more source