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Korakas, Ntonalnt (author)In this thesis an investigation into the buckling behaviour of steel trusses with eccentric joints is performed.<br/>In recent years, Ampelmann motion compensated gangway systems have been pivotal to the advancement of offshore personnel transfers. These systems for functionality reasons require the use of eccentric joints. The behaviour of such...master thesis 2022
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Mondeel, Manouk (author)<b>BACKGROUND - </b>The success of the mechanical thrombectomy treatment in acute ischemic stroke is highly dependent on mechanical clot behavior and characteristics like stiffness. This mechanical treatment is tested in clot analogs. Realistic clot analogs could potentially be made in a realistic formation environment. The effects of blood...master thesis 2022
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Bastek, Jan Hendrik (author), Kumar, Siddhant (author), Telgen, Bastian (author), Glaesener, Raphaël N. (author), Kochmann, Dennis M. (author)Inspired by crystallography, the periodic assembly of trusses into architected materials has enjoyed popularity for more than a decade and produced countless cellular structures with beneficial mechanical properties. Despite the successful and steady enrichment of the truss design space, the inverse design has remained a challenge: While...journal article 2022
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Colombo, Carla (author), Savalle, Nathanaël (author), Mehrotra, A.A. (author), Funari, Marco Francesco (author), Lourenço, Paulo B. (author)The present work aims to expand the knowledge of the behaviour of masonry corners, which are capital to obtain an integral seismic response in masonry buildings. In particular, the influence of the seismic load orientation (from π/4 to π/2) is investigated experimentally, numerically and analytically. Both units and interfaces have been...journal article 2022
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Yang, Tao (author), Xie, Rongxian (author), Veljkovic, M. (author)Bolt shear connectors have the advantage of efficient installation and demolition when used in prefabricated composite beams. When bolt shear connectors are damaged in the service period and replaced by new ones, the shear performance of replaced bolts is to be affected by the existing structural damage. This paper investigates the shear...conference paper 2022
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Gülmez, D.E. (author), Sinke, J. (author), Dransfeld, C.A. (author)Discontinuous tape composites have considerable attention due to their high formability and tailorable structures. Despite their advantages, this discontinuity leads to complex structures and makes it difficult to predict their mechanical properties. On the other hand, they have high orientational and dimensional sensitivity, which causes...conference paper 2022
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van Campen, J.M.J.F. (author)Significant improvements in the mechanical performance of a laminated composite structure can be achieved by spatial variation of the stiffness properties within the laminate. Such a variable stiffness (VS) laminate, typically is created by steering the fibers within the laminae, resulting in an in-plane variation of stacking sequence and thus...conference paper 2022
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Li, X. (author), Benedictus, R. (author), Zarouchas, D. (author)The present work aims at investigating the progressive damage accumulation process of CFRP laminates in an interactive scheme, with a special focus on the early fatigue life where mainly matrix-dominant damage accumulates and stiffness degrades significantly. An in-situ damage monitoring system, containing edge observation, digital image...conference paper 2022
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Jeon, Jaemin (author), Kim, Jaeyong (author), Lee, Jong Jun (author), Shin, D. (author), Kim, Yoon Young (author)This study presents a new modeling technique to estimate the stiffness matrix of a thin-walled beam-joint structure using deep learning. When thin-walled beams meet at joints, significant sectional deformations occur, such as warping and distortion. These deformations should be considered in the one-dimensional beam analysis, but it is...journal article 2022
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Li, X. (author), Benedictus, R. (author), Zarouchas, D. (author)Ply-block size and stress level effect on accumulation of transverse cracks and delamination are investigated during early fatigue life of CFRP laminates. Tension-tension fatigue tests under different stress levels were performed for two cross-ply configurations. Edge observation with digital cameras, digital image correlation and acoustic...journal article 2022
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Chumyen, P. (author), Connolly, D.P. (author), Woodward, P.K. (author), Markine, V.L. (author)Railway track transition zones are areas where there is a sudden change in the track-ground structure. They include changes between ballasted and slab track, bridge approaches, and tunnel entry/exits. They are often the location of rapid track deterioration, and therefore this paper investigates the use of auxiliary rails and soil improvement...journal article 2022
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Yue, N. (author), Broer, Agnes A.R. (author), Briand, William (author), Rébillat, Marc (author), Loutas, Theodoros (author), Zarouchas, D. (author)The application of structural health monitoring (SHM) in composite airframe structural elements under long-term realistic fatigue loading needs to consider the structural behavior on the global level, which is an intricate task. The overall structural stiffness is a key design parameter for composite structures and the stiffness degradation...journal article 2022
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Ye, Guigen (author), Fan, X. (author), Middelburg, L.M. (author), el Mansouri, B. (author), Poelma, René H. (author), Zhang, Kouchi (author)In this paper, stability and mechanistic simulations for a four-beam-mass-based MEMS gravimeter were conducted, and guidelines for the gravimeter design were proposed. Based on a prototyped MEMS device, the nonlinear finite element model was validated first against the experimental results. Then, we demonstrated three different scenarios in...journal article 2022
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Wang, Z. (author), Peeters, D.M.J. (author), De Breuker, R. (author)This work presents a new aeroelastic optimisation framework for the preliminary design of variable stiffness composite wing structures. The framework is constructed by sequentially and iteratively solving two sub-problems: aeroelastic tailoring and lay-up retrieval, using gradient-based algorithms with full-analytical sensitivities provided....journal article 2022
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Khoshmanesh, S. (author), Watson, S.J. (author), Zarouchas, D. (author)Wind turbine blade spar cap to shear web adhesively bonded connections can suffer from damage at the bond-line which can propagate through the structure compromising blade integrity. This study investigates changes in the stiffness and damping of a thick adhesive joint test specimen during a fatigue test. The stiffness is calculated using an...journal article 2022
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Torres Alves, G.A. (author), 't Hart, C.M.P. (author), Morales Napoles, O. (author), Jonkman, Sebastiaan N. (author)A submerged floating tunnel (SFT) is a structure that has been proposed as an innovative solution for waterway crossings around the world. However, to this day, no SFT has been constructed yet. One of the main reasons is that there is an insufficient insight into the structural reliability of the SFT. Here, a method to assess the expected...journal article 2022
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Zhou, Y. (author), Sluys, Lambertus J. (author), Esposito, R. (author)Accurate assessment of the overall mechanical behavior of masonry, composed of bricks and mortar joints, remains challenging due to its inhomogeneous and orthotropic nature. In this study, the feasibility of various mean-field homogenization schemes for the three-dimensional orthotropic elastic properties of masonry is comprehensively...journal article 2022
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Hemel, M. (author), Korff, M. (author), Peters, D.J. (author)The historic canal wall structures in many Northern European cities have been built as masonry walls on a timber deck founded on timber piles. For analysis of the resistance of those structures and assessment of their remaining service life, suitable and accurate calculation models are needed. Thereto an analytical method was developed for...journal article 2022
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van der Kooij, H. (author), Fricke, Simone S. (author), Van 't Veld, Ronald C. (author), Prieto, Ander Vallinas (author), Keemink, Arvid Q.L. (author), Schouten, A.C. (author), Van Asseldonk, Edwin H.F. (author)Knowledge on joint impedance during walking in various conditions is relevant for clinical decision-making and the development of robotic gait trainers, leg prostheses, leg orthotics and wearable exoskeletons. Whereas ankle impedance during walking has been experimentally assessed, knee and hip joint impedance during walking have not been...journal article 2022
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Socci, Carlo Alberto (author), Kassapoglou, C. (author)The effect of matrix and fibre cracks on the static strength and stiffness of uni-directional plies and cross-ply laminates under tensile loads was examined with the goal of understanding the main damage mechanisms. The size of matrix cracks emanating from cracked fibres was determined and found to be in excellent agreement with test results....journal article 2022