Search Results for author: Fotis Kopsaftopoulos

Found 4 papers, 0 papers with code

Stochastic Identification-based Active Sensing Acousto-Ultrasound SHM Using Stationary Time Series Models

no code implementations26 Jan 2022 Shabbir Ahmed, Fotis Kopsaftopoulos

In this work, a probabilistic damage detection and identification scheme using stochastic time series models in the context of acousto-ultrasound guided wave-based SHM is proposed, and its performance is assessed experimentally.

Time Series Time Series Analysis

Time-varying Identification of Guided Wave Propagation under Varying Temperature via Non-Stationary Time Series Models

no code implementations12 Jan 2022 Shabbir Ahmed, Fotis Kopsaftopoulos

In order to circumvent this difficulty, in this paper, a novel stochastic time series-based framework was adopted to model guided wave propagation under varying temperatures.

TAR Time Series +1

Gaussian Process Regression for Active Sensing Probabilistic Structural Health Monitoring: Experimental Assessment Across Multiple Damage and Loading Scenarios

no code implementations28 Jun 2021 Ahmad Amer, Fotis Kopsaftopoulos

The state prediction method presented herein is applied to single-state quantification in the first two test cases, as well as the third one assuming the loading state is known.

Decision Making Management

Statistical guided-waves-based SHM via stochastic non-parametric time series models

no code implementations27 Jan 2021 Ahmad Amer, Fotis Kopsaftopoulos

Damage detection in active-sensing, guided-waves-based Structural Health Monitoring (SHM) has evolved through multiple eras of development during the past decades.

Decision Making Time Series +1

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