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Verhelst, H.M. (author), den Besten, J.H. (author), Möller, M. (author)
Parallel computing is omnipresent in today's scientific computer landscape, starting at multicore processors in desktop computers up to massively parallel clusters. While domain decomposition methods have a long tradition in computational mechanics to decompose spatial problems into multiple subproblems that can be solved in parallel, advancing...
journal article 2024
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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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Verhelst, H.M. (author), Mantzaflaris, A. (author), Möller, M. (author), den Besten, J.H. (author)
Mesh adaptivity is a technique to provide detail in numerical solutions without the need to refine the mesh over the whole domain. Mesh adaptivity in isogeometric analysis can be driven by Truncated Hierarchical B-splines (THB-splines) which add degrees of freedom locally based on finer B-spline bases. Labeling of elements for refinement is...
journal article 2024
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den Besten, N.I. (author)
Waterlogging is the accumulation of excess water in the rootzone. When soils are waterlogged the rootzone is either saturated or submerged with water. As a result, waterlogging prevents aeration of the rootzone which has adverse effects on crop growth. Waterlogging is an issue in both irrigated and rain-fed agriculture and crop productivity...
doctoral thesis 2023
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den Besten, N.I. (author), Steele-Dunne, S.C. (author), Mahmud, Ashfak (author), Jackson, Daniel (author), Aouizerats, Benjamin (author), de Jeu, Richard (author), Burger, Rogier (author), Houborg, Rasmus (author), McGlinchey, Mark (author), van der Zaag, P. (author)
Sentinel-1 observes the whole globe every 12 days (6 days when both satellites were operational) and provides a wealth of data relevant to agriculture. Sugarcane cultivators could potentially benefit from these data by using them to assist operational and management practices. However, first, thorough understanding is needed of Sentinel-1...
journal article 2023
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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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Chukalla, Abebe D. (author), Mul, Marloes L. (author), van der Zaag, P. (author), Van Halsema, Gerardo (author), Mubaya, Evaristo (author), Muchanga, Esperanca (author), den Besten, N.I. (author), Karimi, Poolad (author)
The growing competition for finite land and water resources and the need to feed an ever-growing population require new techniques to monitor the performance of irrigation schemes and improve land and water productivity. Datasets from FAO's portal to monitor Water Productivity through Open access Remotely sensed derived data (WaPOR) are...
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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den Besten, N.I. (author), Steele-Dunne, S.C. (author), Aouizerats, Benjamin (author), Zajdband, Ariel (author), de Jeu, Richard (author), van der Zaag, P. (author)
In this study the impact of sucrose accumulation in Sentinel-1 backscatter observations is presented and compared to Planet optical observations. Sugarcane yield data from a sugarcane plantation in Xinavane, Mozambique are used for this study. The database contains sugarcane yield of 387 fields over two seasons (2018-2019 and 2019-2020). The...
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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den Besten, N.I. (author), Steele-Dunne, S.C. (author), de Jeu, Richard (author), van der Zaag, P. (author)
Waterlogging is an increasingly important issue in irrigated agriculture that has a detri-mental impact on crop productivity. The above-ground effect of waterlogging on crops is hard to distinguish from water deficit stress with remote sensing, as responses such as stomatal closure and leaf wilting occur in both situations. Currently,...
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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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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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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Garbatov, Y. (author), Ås, S.K. (author), Branner, Kim (author), Choi, B.K. (author), den Besten, J.H. (author), Dong, P. (author), Lillemäe, I. (author), Lindstrom, P. (author), Lourenço de Souz, M. (author), Parmentier, G. (author), Quéméner, Y. (author), Rizzo, C.M. (author), Rörup, J. (author), Vhanmane, Suhas (author), Villavicencio, R. (author), Wang, F. (author), Yuan, Yue (author)
Concern for crack initiation and growth under cyclic loading as well as unstable crack propagation and tearing in the ship and offshore structures. Due attention shall be paid to the suitability and uncertainty of physical models and testing. Consideration is to be given to practical application, statistical description and fracture control...
conference paper 2018
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Moors, Janneke (author), Scholten, L. (author), van der Hoek, J.P. (author), den Besten, Jurjen (author)
Automatic leak localization has been suggested to reduce the time and personnel efforts needed to localize (small) leaks. Yet, the available methods require a detailed demand distribution model for successful calibration and good leak localization performance. The main aim of this work was to analyze whether such a detailed demand distribution...
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), Kaminski, M.L. (author), den Besten, J.H. (author)
The application of composite materials in marine propellers is a relatively recent innovation. Methods have been presented to analyse the hydro-elastic behaviour of these type of propellers and in some studies these methods have been validated as well. Differences between measured and predicted responses are typically explained from...
journal article 2017
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van Lieshout, P.S. (author), den Besten, J.H. (author), Kaminski, M.L. (author)
In engineering practice, multiaxial fatigue analyses are often avoided due to their complexity and computational intensity. However, damages have been encountered in turret bearings of Floating Production Storage and Offloading vessel (FPSO) offloading buoys which were likely caused by multiaxial fatigue. The Dang Van criterion has often been...
journal article 2017
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