Journal ArticleDOI
Damage detection in bridges using accurate modal parameters
Anjan Dutta,Sudip Talukdar +1 more
TLDR
In this article, eigenvalue analysis is carried out using Lanczos algorithm in an adaptive h-version finite element environment in order to control the discretization error for accurate evaluation of modal parameters.About:
This article is published in Finite Elements in Analysis and Design.The article was published on 2004-01-01. It has received 101 citations till now. The article focuses on the topics: Discretization & Finite element method.read more
Citations
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Journal ArticleDOI
Structural Damage Detection with Automatic Feature-Extraction through Deep Learning
TL;DR: A novel damage detection approach to automatically extract features from low‐level sensor data through deep learning using a deep convolutional neural network, leading to an excellent localization accuracy on both noise‐free and noisy data set.
Journal ArticleDOI
Vibration‐based structural state identification by a 1‐dimensional convolutional neural network
TL;DR: In this paper, a vibration-based structural damage detection by CNNs is presented. But the vibration is not considered in the analysis of the CNNs' performance in detecting structural damage.
Journal ArticleDOI
Optimal spatial sampling interval for damage detection by curvature or strain energy mode shapes
TL;DR: In this paper, the optimal sampling interval for non-destructive damage detection utilizing curvature or strain energy mode shapes has been investigated, which is based on the most commonly used numerical methods for the computation of the curvature and the strain energy modes.
Journal ArticleDOI
Damage assessment of structures with uncertainty by using mode-shape curvatures and fuzzy logic
M. Chandrashekhar,Ranjan Ganguli +1 more
TL;DR: In this paper, a fuzzy logic-based approach for damage detection is proposed, where the authors show that geometric and measurement uncertainty cause considerable problem in damage assessment, which can be alleviated by using a probabilistic approach.
A review of damage detection and health monitoring of mechanical systems from changes in the measurement of linear and non-linear vibrations
TL;DR: This Chapter 13 presents a review of damage detection and structural health monitoring of mechanical systems from changes in the measurement of both linear and non-linear vibrations.
References
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Journal ArticleDOI
The superconvergent patch recovery and a posteriori error estimates. Part 1: The recovery technique
O. C. Zienkiewicz,J. Z. Zhu +1 more
TL;DR: In this article, a general recovery technique is developed for determining the derivatives (stresses) of the finite element solutions at nodes, which has been tested for a group of widely used linear, quadratic and cubic elements for both one and two dimensional problems.
Journal ArticleDOI
Damage detection from changes in curvature mode shapes
TL;DR: In this article, a new parameter called curvature mode shape is investigated as a possible candidate for identifying and locating damage in a structure, and it is shown that the absolute changes in the curvature shape are localized in the region of damage and hence can be used to detect damage.
Journal ArticleDOI
The location of defects in structures from measurements of natural frequencies
Peter Cawley,Robert D. Adams +1 more
TL;DR: In this article, a method of non-destructively assessing the integrity of structures using measurements of the structural natural frequencies is described, where measurements made at a single point in the structure can be used to detect, locate and quantify damage.
Journal ArticleDOI
Analysis of thick and thin shell structures by curved finite elements
TL;DR: In this article, a general formulation for the curved, arbitrary shape of thick shell finite elements is presented along with a simplified form for axisymmetric situations, which is suitable for thin to thick shell applications.
Journal ArticleDOI
The superconvergent patch recovery and a posteriori error estimates. Part 2: Error estimates and adaptivity
O. C. Zienkiewicz,J. Z. Zhu +1 more
TL;DR: In this paper, the authors derived a theorem showing the dependence of the effectivity index for the Zienkiewicz-Zhu error estimator on the convergence rate of the recovered solution.
Related Papers (5)
Damage detection in bridges using modal curvatures: application to a real damage scenario
M.M. Abdel Wahab,G. De Roeck +1 more