Results 31 to 40 of about 8,161,887 (352)
Percussion and PSO-SVM-Based Damage Detection for Refractory Materials
Micromachines, 2023 Refractory materials are basic materials widely used in industrial furnaces and thermal equipment. Their microstructure is similar to that of many heterogeneous high-performance materials used in micro/nanodevices.
Dan Yang +4 more
doaj +1 more source
Sensors, 2023 Vibration-based damage detection methods are a subcategory of Structural Health Monitoring (SHM) methods that rely on the fact that structural damage will affect the dynamic characteristic of a structure.
Ilias Zacharakis, Dimitrios Giagopoulos
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Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]
, 2011 This paper presents a basic experimental technique and simplified FE based models for the detection, localization and quantification of impact damage in composite beams around the BVID level.
Abrate S. +16 more
core +3 more sources
IEEE Access, 2019 The damage detection method for composite laminates introduced in this research uses piezoelectric (lead zirconate titanate, PZT) transducers to excite/sense the Lamb wave signals. The complicated wave signals scattered by damage are accurately processed
M. Saqib Hameed, Zheng Li
doaj +1 more source
Damage Detection with Auxiliary Subsystem [PDF]
Advances in Science and Technology, 2008 Among Non-Destructive Evaluation, vibration-based methods respond to the current ten- dency which is to integrate into the structure identication and monitoring systems; to this aim transducers and sensors are embedded with the mechanical system and driven by suitably designed electronic controllers.
VESTRONI, Fabrizio +3 more
openaire +1 more source
Significance of low energy impact damage on modal parameters of composite beams by design of experiments [PDF]
, 2009 This paper presents an experimental study on the effects of multi-site damage on the vibration response of composite beams damaged by low energy impacts around the barely visible impact damage limit (BVID).
A Shahdin +9 more
core +5 more sources
Detection of Pin Failure in Carbon Fiber Composites Using the Electro-Mechanical Impedance Method
Sensors, 2020 This paper presents a proof of concept for simultaneous load and structural health monitoring of a hybrid carbon fiber rudder stock sample consisting of carbon fiber composite and metallic parts in order to demonstrate smart sensors in the context of ...
Jochen Moll +5 more
doaj +1 more source
An investigation on vibration-based damage detection in circular plates [PDF]
, 2009 This study aims at the development of vibration-based health monitoring (VHM) methodology for thin circular plates. The possibility of using the first several natural frequencies of a circular plate for damage detection purposes is investigated first ...
D.G. Gorman +5 more
core +1 more source
Influence of changes in the prestress force on dynamic specifications of the prestressed concrete beam [PDF]
Numerical Methods in Civil Engineering, 2020 Pre-stress techniques tend to increase cross-sectional capacity and optimize design. Such features have made these techniques rather popular. Over time, these structures tend to fail, and the reduction of pre-stress force over the lifetime of the ...
Behrouz Babakhani, Hossein Rahami
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Frontiers in Cellular and Infection Microbiology, 2017 Coxiella burnetii, the etiologic agent of Q fever, is a Gram-negative obligate intracellular bacterium. It has been previously described that both the endocytic and autophagic pathways contribute to the Coxiella replicative vacuole (CRV) generation ...
Frank Lafont +3 more
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