Results 31 to 40 of about 936,745 (311)

Damage Identification of Structures Using Second-Order Approximation of Neumann Series Expansion [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2020
In this paper, a new method proposed for structural damage detection from limited number of sensors using extreme learning machine (ELM). One of the main challenges in structural damage identification problems is the limitation in the number of used ...
Seyed Sina Kourehli
doaj   +1 more source

Correlating low energy impact damage with changes in modal parameters: a preliminary study on composite beams [PDF]

open access: yes, 2009
This paper is an experimental study of the effects of multi-site damage on the vibration response of a composite beam damaged by low energy impact. The variation of the modal parameters with different levels of impact energy and density of impact is ...
Morlier, Joseph   +2 more
core   +1 more source

A two-stage model updating method for the linear parts of structures with local nonlinearities

open access: yesFrontiers in Materials, 2023
Finite element model updating provides an important supplement for finite element modelling. However, some studies have shown that if the tested structure involves local nonlinearities due to damages, material properties and large deformation et al., it ...
Hao Zhang   +9 more
doaj   +1 more source

An investigation on vibration-based damage detection in circular plates

open access: yes, 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 ...
Gorman, D. G.   +5 more
core   +1 more source

Improved SOM algorithm for damage characterization based on visual sensing [PDF]

open access: yesArchives of Civil Engineering
In the field of concrete structure health monitoring, accurately and swiftly identifying damage characteristics stands as a pivotal task. To enhance the accuracy and efficiency of concrete damage identification, this research proposes an improved Self ...
Hongtao Zhu, Shuyun Guo
doaj   +1 more source

Method for Plate Crack Damage Detection Based on Long Short-Term Memory Neural Network

open access: yesShanghai Jiaotong Daxue xuebao, 2021
Aimed at the problem of intelligent classification of crack damage in different positions of the plate, a method for plate crack damage detection based on long short-term memory (LSTM) neural network is proposed.
ZHANG Songlin, MA Dongliang, WANG Deyu
doaj   +1 more source

Vibration Response-Based Damage Detection [PDF]

open access: yes, 2021
AbstractThis chapter aimed to present different data driven Vibration-Based Methods (VBMs) for Structural Health Monitoring (SHM). This family of methods, widely used for engineering applications, present several advantages for damage identification applications.
Limongelli M. P.   +6 more
openaire   +4 more sources

Significance of low energy impact damage on modal parameters of composite beams by design of experiments [PDF]

open access: yes, 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   +6 more
core   +1 more source

A review of KLF4 and inflammatory disease: Current status and future perspective

open access: yesPharmacological Research
Inflammation is the response of the human body to injury, infection, or other abnormal states, which is involved in the development of many diseases. As a member of the Krüppel-like transcription factors (KLFs) family, KLF4 plays a crucial regulatory ...
Yidan Liang   +8 more
doaj   +1 more source

Damage detections in nonlinear vibrating thermally loaded plates [PDF]

open access: yes, 2009
In this work, geometrically nonlinear vibrations of fully clamped rectangular plates subjected to thermal changesare used to study the sensitivity of some vibration response parameters to the presence of damage and elevated temperature. The geometrically
Trendafilova, Irina   +3 more
core   +1 more source

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