Results 21 to 30 of about 1,891,292 (305)

Experimental characterization and numerical modeling of micromechanical damage under different stress states [PDF]

open access: yes, 2013
The use of HSLA steels for the manufacture of automotive components is interesting from an engineering point of view. This family of steels, while possessing high strength, also has good formability and can be used in forming manufacturing processes.
ACHOURI, Mohamed   +3 more
core   +5 more sources

Damage identification using inverse methods [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2006
This paper gives an overview of the use of inverse methods in damage detection and location, using measured vibration data. Inverse problems require the use of a model and the identification of uncertain parameters of this model. Damage is often local in nature and although the effect of the loss of stiffness may require only a small number of ...
openaire   +3 more sources

A Novel Damage Identification Method for Steel Catenary Risers Based on a Novel CNN-GRU Model Optimized by PSO

open access: yesJournal of Marine Science and Engineering, 2023
As a new type of riser connecting offshore platforms and submarine pipelines, steel catenary risers (SCRs) are generally subject to waves and currents for a long time, thus it is significant to fully evaluate the SCR structure’s safety.
Zhongyan Liu   +4 more
doaj   +1 more source

Surface Damage Identification of Wind Turbine Blade Based on Improved Lightweight Asymmetric Convolutional Neural Network

open access: yesApplied Sciences, 2023
Wind turbine blades are readily damaged by the workplace environment and frequently experience flaws such as surface peeling and cracking. To address the problems of cumbersome operation, high cost, and harsh application conditions with traditional ...
Li Zou, Haowen Cheng, Qianhui Sun
doaj   +1 more source

Damage identification of bridge structure model based on empirical mode decomposition algorithm and Autoregressive Integrated Moving Average procedure [PDF]

open access: yesArchives of Civil Engineering, 2022
Time series models have been used to extract damage features in the measured structural response. In order to better extract the sensitive features in the signal and detect structural damage, this paper proposes a damage identification method that ...
Weijia Lu   +4 more
doaj   +1 more source

A Robust Deep Learning-Based Damage Identification Approach for SHM Considering Missing Data

open access: yesApplied Sciences, 2023
Data-driven methods have shown promising results in structural health monitoring (SHM) applications. However, most of these approaches rely on the ideal dataset assumption and do not account for missing data, which can significantly impact their real ...
Fan Deng   +3 more
doaj   +1 more source

Correlating low energy impact damage with changes in modal parameters: diagnosis tools and FE validation [PDF]

open access: yes, 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

Damage Quantification and Identification in Structural Joints through Ultrasonic Guided Wave-Based Features and an Inverse Bayesian Scheme

open access: yesSensors, 2023
In this paper, defect detection and identification in aluminium joints is investigated based on guided wave monitoring. Guided wave testing is first performed on the selected damage feature from experiments, namely, the scattering coefficient, to prove ...
Wen Wu   +5 more
doaj   +1 more source

Damage identification in a concrete beam using curvature difference ratio [PDF]

open access: yes, 2011
Previous studies utilising changes in mode shape or curvature to locate damage rely on the fact that the greatest change occurs around the defect. However, in concrete beams this fact is undermined due to the nature of the defect as distributed multi ...
  +10 more
core   +1 more source

Modal identification of damaged frames

open access: yesStructural Control and Health Monitoring, 2015
Summary The paper investigates the possibility of identifying localised damages for multi-span and multi-floor linear elastic frames using only natural frequencies measured in the undamaged and damaged configurations. Namely, frames of increasing complexity are studied by exploring one by one their significant substructures (i.e.
Diaferio, Mariella, SEPE, VINCENZO
openaire   +4 more sources

Home - About - Disclaimer - Privacy