Results 251 to 260 of about 64,286 (293)

Analysis of Displacement Influence Line Characteristics of Simply Supported Beam with Local Damage

Advanced Materials Research, 2014
According to energy principle, the influence line equation for displacement at any point of simply supported beam with local damage was derived. Based on the load symmetry positions’ difference of influence line for displacement at midspan point, a index that detects the local damage of simply supported beam without initial data was proposed.
Ke Sun, Yan Qing Zhang
openaire   +1 more source

Optimum CFRP Configuration to Efficiently Repair Laterally Damaged, Simply Supported Rectangular Reinforced Concrete Beams

Practice Periodical on Structural Design and Construction, 2013
This research investigated flexural behavior of repaired RC beams that experienced simulated lateral damage to replicate vehicle impact/collision. The experimental program included the testing of 34 RC beams, which were laterally damaged and then repaired using carbon-fiber-reinforced polymer (CFRP) fabrics.
Elsafty, Adel, Graeff, Matthew K.
openaire   +2 more sources

Study on Damage Identification of Simply Supported-Beam Based on Modal Strain Energy Method

Applied Mechanics and Materials, 2014
In present study, ANSYS finite element method was utilized to analyze the modal of simply supported beam and then the study on damage identification was performed based on modal strain energy method. The comparative analysis of results obtained by modal strain energy changes rate method and modal strain energy index demonstrates that modal strain ...
Yong Qiang Gu, Chun Feng Mao
openaire   +1 more source

Crack Damage Identification of Reinforced Concrete Simply Supported Beam Based on BP Neural Network

Advanced Materials Research, 2012
Considering the good forecasting capability of BP neural network, a new crack damage identification method for reinforced concrete simply supported beam is proposed in this paper. After simulating the crack damage of a reinforced concrete simply supported beam, the natural frequency of the beam is chosen as the input parameters of the BP neural network.
Xiao Ming Yang, Fu Li
openaire   +1 more source

A new signal reconstruction for damage detection on a simply supported beam subjected to a moving mass

Journal of Civil Structural Health Monitoring, 2020
A new signal reconstruction is proposed for damage detection on a simply supported beam using multiple measurements of displacement induced by a moving sprung mass. The new signal is constructed from the difference between the spatially integrated deflection for the intact (baseline) and damaged beams under quasi-static loading.
Mohsen Mousavi, Damien Holloway, J. C. Olivier   +2 more
openaire   +1 more source

Damage Detection of Simply Supported Beam under Effect of Moving Load by Hilbert-Huang Transform

Applied Mechanics and Materials, 2012
Hilbert-Huang transform (HHT) is a signal processing technique is relatively strong and effective today, to overcome the limitations of the used techniques have been widely used as traditional Fourier transform or Wavelet transform. Hilbert-Huang transform can handle effectively nonstationary and nonlinear signal.
Han Bing Liu, Huu Hung Nguyen
openaire   +1 more source

Two-axle test vehicle for damage detection for railway tracks modeled as simply supported beams with elastic foundation

Engineering Structures, 2020
Abstract For damage detection of railway tracks, a two-axle test vehicle is better than a single-axle vehicle due to its capability of self standing and stability. This paper presents a new, comprehensive theoretical framework for a two-axle test vehicle moving over railway tracks modeled as a simply supported beam with elastic foundation.
Y.B. Yang, Z.L. Wang, K. Shi, H. Xu, X.Q. Mo, Y.T. Wu   +5 more
openaire   +1 more source

Application of Neural Operator for Damage Identification of a Simply Supported Beam

IABSE Reports
<p>This study presents the Modal-Stiffness Fourier Neural Operator (MS-FNO), a novel data-driven model for damage localization and quantification in structural health monitoring (SHM). The MS- FNO leverages modal shape response data to predict stiffness loss distributions. Validated on both numerical (NUM-Set) and experimental (EXP-Set) datasets,
Jinghao Fei, Debao Chen, Hongkang Pan, Chul‑Woo Kim   +3 more
openaire   +1 more source

Damage Detection in Simply Supported Beam Using Transmissibility and Auto-Associative Neural Network

2018
The first two steps in Structural Health Monitoring (SHM) are to detect and localize damage in a structure. Transmissibility uses only output signals to extract the structural dynamic parameter and very sensitive to damage. In this paper, a simply supported beam is analyzed using a transmissibility-based damage detection methodology combined with Auto ...
Huong Duong Nguyen, Tien Thanh Bui, Guido De Roeck, Magd Abdel Wahab   +3 more
openaire   +1 more source

Research on Frequencies Change Rules of Single-Damaged Simply Supported Beam

2017
Based on Euler-Bernoulli beam and structure dynamics theory and by means of numerical experimentation, taking a single-damaged simply supported beam as the research object, this paper obtains the frequencies of the beam under the conditions of different damage positions and damage degrees.
openaire   +1 more source