IWSHM 2017: Vibration-based damage localization and estimation via the stochastic functional model–based method: An overview

JS Sakellariou, SD Fassois… - Structural Health …, 2018 - journals.sagepub.com
The functional model–based method is a unique vibration-based approach to damage
localization and magnitude estimation in structures under normal operation, capable of …

Structural health monitoring of tendons in a multibody floating offshore wind turbine under varying environmental and operating conditions

CS Sakaris, Y Yang, M Bashir, C Michailides, J Wang… - Renewable Energy, 2021 - Elsevier
The structural health monitoring of a Floating Offshore Wind Turbine (FOWT) tendons, taking
into account the comprehensive damage diagnosis problem of damage detection, damaged …

Diagnosis of damaged tendons on a 10 MW multibody floating offshore wind turbine platform via a response-only functional model based method

CS Sakaris, M Bashir, Y Yang, C Michailides… - Engineering …, 2021 - Elsevier
The problem of damaged tendon diagnosis (damage detection, damaged tendon
identification and damage precise quantification) in a new multibody offshore platform …

Statistical method for damage severity and frequency drop estimation for a cracked beam using static test data

N Gillich, C Tufisi, O Vasile, GR Gillich - Romanian Journal of Acoustics …, 2019 - rjav.sra.ro
We present in this paper a statistical method to estimate the severity of a transverse crack
form the free-end deflections of a cantilever beam. To this aim, we carry out simulations …

Detection of multiple cracks using an energy method applied to the concept of equivalent healthy beam

GR Gillich, AT Aman, M Abdel Wahab… - … 2019, 9-10 July 2019, Porto …, 2019 - Springer
We introduce herein the concept of global stiffness of a damaged beam, and the Equivalent
Healthy Beam (EHB) as a damage model. This model simplifies the process of assessing …

Multi-site damage precise localization via the random vibration functional model based method: Formulation & concept validation

CS Sakaris, JS Sakellariou, SD Fassois - Mechanical Systems and Signal …, 2021 - Elsevier
The postulation and experimental validation of a random vibration data based Functional
Model Based Method (FMBM) for multi-site damage localization, involving the determination …

[HTML][HTML] The effect of a crack near the fixed end on the natural frequencies of a cantilever beam

C Tufisi, GR Gillich, AT Aman - Vibroengineering Procedia, 2019 - extrica.com
The paper examines how a transverse crack near the fixed end of a beam affects the natural
frequency drop. It is known that the decrease in the frequency due to a crack depends on the …

Flutter boundary prediction in a global stochastic framework

W Gu, L Zhou - Journal of Aircraft, 2022 - arc.aiaa.org
A novel global parametric system identification framework is introduced in this work for
aeroelastic modeling under varying flight states. The presented framework is based on the …

Exact solution for the severity of transverse cracks in prismatic beams

C Tufisi, GR Gillich, CO Hamat, I Biro… - Journal of Physics …, 2020 - iopscience.iop.org
We propose herein a mathematical relation to calculate the severity of transverse cracks
which affect a prismatic beam. It is known that the damage severity depends on the depth of …

[HTML][HTML] Numerical study on complex shaped cracks in cantilever beams concerning frequency and stiffness changes

C Tufisi, GR Gillich, D Nedelcu, CO Hamat - Vibroengineering procedia, 2018 - extrica.com
The paper presents a mathematical relation to express the effects of a T-shaped crack on
beam-like structures. The study is performed by using the finite element method (FEM) and …