A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Damage Assessment in a Cracked Fiber-Reinforced Cantilever Beam Using Wavelet-Kurtosis Techniques
In the last decades the use of composite materials has increased especially in light-weight structural applications, such as wind turbine blades. These structural components require reliable methods for damage assessment to avoid progressive or sudden and catastrophic failures. In this paper, a model of a fiber-reinforced composite cantilever beam with a bridged edge crack, representing an existing damage state, is considered. The composite matrix of the beam exhibits a linear-elastic behavior, whereas a fracture mechanics-based theoretical model incorporating the crack bridging forces in the fiber-reinforcement is used to describe the elastic-plastic response of the cracked beam section subjected to bending moment. This model is employed to simulate the nonlinear static deflection of cantilever beams with different crack locations and depths. Wavelet and kurtosis-based identification techniques are employed in the localization and calibration of this damage in presence of noise. The influence of the bridging effect of the fibers on the success of the damage assessment is discussed.
Damage Assessment in a Cracked Fiber-Reinforced Cantilever Beam Using Wavelet-Kurtosis Techniques
In the last decades the use of composite materials has increased especially in light-weight structural applications, such as wind turbine blades. These structural components require reliable methods for damage assessment to avoid progressive or sudden and catastrophic failures. In this paper, a model of a fiber-reinforced composite cantilever beam with a bridged edge crack, representing an existing damage state, is considered. The composite matrix of the beam exhibits a linear-elastic behavior, whereas a fracture mechanics-based theoretical model incorporating the crack bridging forces in the fiber-reinforcement is used to describe the elastic-plastic response of the cracked beam section subjected to bending moment. This model is employed to simulate the nonlinear static deflection of cantilever beams with different crack locations and depths. Wavelet and kurtosis-based identification techniques are employed in the localization and calibration of this damage in presence of noise. The influence of the bridging effect of the fibers on the success of the damage assessment is discussed.
Damage Assessment in a Cracked Fiber-Reinforced Cantilever Beam Using Wavelet-Kurtosis Techniques
Montanari, L. (author) / Basu, Biswajit (author) / Spagnoli, Andrea (author) / Broderick, B. (author)
2013
8 Seiten
Conference paper
English
Damage Assessment in a Cracked Fiber-Reinforced Cantilever Beam Using Wavelet-Kurtosis Techniques
| British Library Online Contents | 2013
Structural damage detection and calibration using a wavelet–kurtosis technique
| Online Contents | 2007
| British Library Online Contents | 2009
Creep of cracked reinforced beam
| Engineering Index Backfile | 1968
Automated model updating of multiple cracked cantilever beams for damage detection
| British Library Online Contents | 2017