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Determination of the numerical parameters of a continuous damage model for the structural analysis of clay brick masonry
(Universidade Federal de São Carlos (UFSCar), Dept Engenharia Materials, 2012-12-01)
Models based on the continuous damage theory present good responses in representing the nonlinear behavior of reinforced concrete structures with loss of strength and stiffness of the material. However, damage theory is ...
Damage detection in a benchmark structure using AR-ARX models and statistical pattern recognition
(Abcm Brazilian Soc Mechanical Sciences & EngineeringRio De Janeiro RjBrasil, 2007)
Damage location in flexible structures using H2 and H∞ norm approaches
(2006-01-01)
Nowadays there is great interest in structural damage detection using non- destructive tests. Once the failure is identified, as for instance a crack, it is possible to plan the next step based on a predictive maintenance ...
Autoregressive model extrapolation using cubic splines for damage progression analysis
(2021-01-01)
The application of Structural Health Monitoring (SHM) methods focuses mainly on its initial levels of the hierarchy of damage identification. The contribution of this paper is to propose a new strategy that allows going ...
False alarms in damage detection approaches
(2008-12-01)
Structural Health Monitoring (SHM) denotes a system with the ability to detect and interpret adverse changes in structures in order to improve reliability and reduce life-cycle costs. The greatest challenge for designing ...
On the use of parallel full-order state observers for damage detection in mechanical systems
(2021-12-01)
According to the literature, structural health monitoring techniques based on state observers usually evaluate the differences between measured and estimated states to detect a damage. The practical application of this ...
Analytical Investigation of the Structural Fuse Concept
(2006-06-28)
Passive energy devices (PED) are useful to enhance structural performance by reducing seismically induced structural damage. Metallic dampers are one such PED. When they are designed such that all damage is concentrated ...
A ductile damage criterion at various stress triaxialities
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
The paper discusses the effect of stress triaxiality on the onset and evolution of damage in ductile metals. A series of tests including shear tests and experiments oil smooth and pre-notched tension specimens wits carried ...
Structural health monitoring of sandwich structures based on dynamic analysis
(2018-01-01)
This work aims to contribute to the development of SHM systems based on vibration methods to be applied on sandwich structures. The main objective is focused on experimental damage identification via changes in the Frequency ...
Gaussian Process NARX Model for Damage Detection in Composite Aircraft Structures
(2022-02-01)
This article demonstrates the Gaussian process regression model's applicability combined with a nonlinear autoregressive exogenous (NARX) framework using experimental data measured with PZTs' patches bonded in a composite ...