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Bufalari, G. (author), den Besten, J.H. (author), Kaminski, M.L. (author)The response of maritime structures can be multiaxial, involving predominant mode-I and non-negligible mode-III components. Adopting a stress distribution formulation based effective notch stress as fatigue strength parameter for mixed mode-{I, III} multiaxial fatigue assessment purposes, a mode-I equivalent von Mises type of failure...journal article 2024
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Scheeren, B. (author), Kaminski, M.L. (author), Pahlavan, Lotfollah (author)This article presents an approach to identify naturally developed damage in low-speed bearings using waveform-similarity-based clustering of acoustic emissions (AEs) under fatigue loading. The approach is motivated by the notation that each recorded AE signal from a particular damage is defined by the convolution of the source signal, transfer...journal article 2023
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Lu, Meng (author), Christensen, Charles N. (author), Weber, J.M. (author), Konno, Tasuku (author), Läubli, Nino F. (author), Scherer, Katharina M. (author), Avezov, Edward (author), Lio, Pietro (author), Lapkin, Alexei A. (author), Kaminski Schierle, Gabriele S. (author), Kaminski, Clemens F. (author)The ability to quantify structural changes of the endoplasmic reticulum (ER) is crucial for understanding the structure and function of this organelle. However, the rapid movement and complex topology of ER networks make this challenging. Here, we construct a state-of-the-art semantic segmentation method that we call ERnet for the automatic...journal article 2023
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Scheeren, B. (author), Kaminski, M.L. (author), Pahlavan, Lotfollah (author)In the condition monitoring of bearings using acoustic emission (AE), the restriction to solely instrument one of the two rings is generally considered a limitation for detecting signals originating from defects on the opposing non-instrumented ring or its interface with the rollers due to the signal energy loss. This paper presents an approach...journal article 2022
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Reijmers, J.J. (author), Kaminski, M.L. (author), Stapersma, D. (author)Risk-based design of marine pressure hulls require computationally efficient and precise models predicting collapse pressures of ring stiffened cylindrical shells as a function of realistic geometrical imperfections. However, the empirical interframe collapse models commonly implemented in design codes do not explicitly depend on...journal article 2022
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Hageman, R.B. (author), van der Meulen, F.H. (author), Rouhan, A. (author), Kaminski, M.L. (author)In order to obtain valuable information from an Hull Structure Monitoring system, a large data set and consistent analysis of that data is required. The monitoring requires significant efforts over multiple years and as a result, uncertainties obtained from in-service measurements are rarely published. Instead, researchers have to rely on...journal article 2022
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Bufalari, G. (author), den Besten, J.H. (author), Kaminski, M.L. (author)The predominant mode-I response of maritime structures can be multiaxial, involving out-of-plane mode-III shear components. Semi-analytical mode-III notch stress distribution formulations have been established for critical details like welded T-joints and cruciform joints, reflecting (non-)symmetry with respect to half the plate thickness....journal article 2022
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Verhelst, H.M. (author), Möller, M. (author), den Besten, J.H. (author), Mantzaflaris, Angelos (author), Kaminski, M.L. (author)Modelling nonlinear phenomena in thin rubber shells calls for stretch-based material models, such as the Ogden model which conveniently utilizes eigenvalues of the deformation tensor. Derivation and implementation of such models have been already made in Finite Element Methods. This is, however, still lacking in shell formulations based on...journal article 2021
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Qin, Y. (author), den Besten, J.H. (author), Palkar, S.S. (author), Kaminski, M.L. (author)The characteristic far field response spectrum of welded joints – the governing fatigue sensitive locations in steel marine structures – is predominantly linear elastic, meaning mid- and high-cycle fatigue (MCF and HCF) is most important for design. Using the effective notch stress- and the total stress concept, involving respectively S<sub>e...journal article 2021
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Maljaars, P.J. (author), Grasso, N. (author), den Besten, J.H. (author), Kaminski, M.L. (author)The first part of the paper presents a partitioned fluid–structure interaction (FSI) coupling for the non-uniform flow hydro-elastic analysis of highly flexible propellers in cavitating and non-cavitating conditions. The chosen fluid model is a potential flow solved with a boundary element method (BEM). The structural sub-problem has been...journal article 2020
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Zou, Tao (author), Kaminski, M.L. (author)Fatigue damage of offshore floating structures is a long-term cumulative process, which is mainly attributed to ocean waves. The natural variability and human-induced climate change may affect the wave climate and consequently result in the change of fatigue damage. This paper aims to investigate the effect of climate change on the fatigue...journal article 2020
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Magnetic properties of structural steels for simulation of crack monitoring by finite element methodvan der Horst, M.P. (author), Kaminski, M.L. (author)The metal magnetic memory method is a novel technique for monitoring fatigue cracks in steel structures, which can reduce operational expenses and increase safety by minimizing inspections. The crack geometry can be identified by measuring the self magnetic flux leakage, which is induced by the Earth’s magnetic field and the permanent...journal article 2020
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Maljaars, P.J. (author), Kaminski, M.L. (author), den Besten, J.H. (author)A special type of fluid–structure interaction (FSI) problems are problems with periodic boundary conditions like in turbomachinery. The steady state FSI response of these problems is usually calculated with similar techniques as used for transient FSI analyses. This means that, when the fluid and structure problem are not simultaneously...journal article 2019
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van der Horst, Menno (author), van Kreveld, Sylvia (author), Kaminski, M.L. (author)Wireless crack monitoring on ships and offshore structures based on Self Magnetic Flux Leakage (SMFL) measurements is a promising method to guarantee the structural integrity in a more effective way, leading to reduced operational costs and increased safety. For accurate crack sizing, the SMFL measurements must be interpreted correctly, also...journal article 2019
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Qin, Y. (author), den Besten, J.H. (author), Palkar, S.S. (author), Kaminski, M.L. (author)Fatigue is a governing design limit state for marine structures. Welded joints are important in that respect. The weld notch stress (intensity) distributions contain essential information and formulations have been established to obtain a total stress fatigue damage criterion and corresponding fatigue resistance curve; a total stress concept....journal article 2019
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- van Lieshout, P.S. (author), den Besten, J.H. (author), Kaminski, M.L. (author) journal article 2018
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Scheeren, B. (author), Pahlavan, Lotfollah (author), Kaminski, M.L. (author)In the present study, feasibility of implementing an acoustic emission (AE) system for condition monitoring of highly-loaded and low-speed roller bearings has been quantitatively investigated. To evaluate the transmission of damage-induced AE signals inside the bearing and their detectability on the accessible surfaces, stress wave propagation...conference paper 2018
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Maljaars, P.J. (author), Bronswijk, L.M.E. (author), Windt, Jaap (author), Grasso, Nicola (author), Kaminski, M.L. (author)In the past several decades, many papers have been published on fluid–structure coupled calculations to analyse the hydro-elastic response of flexible (composite) propellers. The flow is usually modelled either by the Navier–Stokes equations or as a potential flow, by assuming an irrotational flow. Phenomena as separation of the flow, flow...journal article 2018
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Maljaars, P.J. (author), Kaminski, M.L. (author), den Besten, J.H. (author)Boundary element methods (BEM) have been used for propeller hydrodynamic calculations since the 1990s. More recently, these methods are being used in combination with finite element methods (FEM) in order to calculate flexible propeller fluid–structure interaction (FSI) response. The main advantage of using BEM for flexible propeller FSI...journal article 2018
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Maljaars, P.J. (author), Grasso, Nicola (author), Kaminski, M.L. (author), Lafeber, Wim (author)This paper presents numerical and experimental results for the validation of a coupled Boundary Element Method (BEM)-Finite Element Method (FEM) simulation for uniform flows. In the first part of the paper the numerical models and the BEM-FEM coupling are presented. A large part of the paper is dedicated to the validation procedure which has...conference paper 2017