document

Post-buckling behavior and collapse of Double-Double composite single stringer specimens

Vescovini, A. (author), Li, Carina Xiaochen (author), Paz Mendez, J. (author), Jin, Bo Cheng (author), Manes, Andrea (author), Bisagni, C. (author)

This paper presents the work on six single-stringer specimens manufactured using the card-sliding technique with non-crimp fabrics and adopting a Double-Double (DD) stacking sequence. These specimens, representative of sub-structure level components, are used to investigate post-buckling and failure in aerospace structures. Two specimens...

journal article 2024

document

Design and Experimental Validation of Intracardiac Photoacoustic Catheter: English

Oza, Jimeet (author)

Atrial fibrillation is a cardiac arrhythmia resulting from abnormal electrical conduction and impulse formation within the atria. To address this condition, a minimally invasive procedure called cardiac ablation is performed. Real-time visual feedback during this procedure plays a critical role in determining its success.<br/><br/>Photoacoustic...

master thesis 2023

document

Tensile and Compressive Mechanical Behaviour of Human Blood Clot Analogues

Cahalane, R.M.E. (author), de Vries, J.J. (author), de Maat, Moniek P.M. (author), van Gaalen, Kim (author), van Beusekom, Heleen M. (author), van der Lugt, Aad (author), Fereidoonnezhad, B.F. (author), Akyildiz, A.C. (author), Gijsen, F.J.H. (author)

Endovascular thrombectomy procedures are significantly influenced by the mechanical response of thrombi to the multi-axial loading imposed during retrieval. Compression tests are commonly used to determine compressive ex vivo thrombus and clot analogue stiffness. However, there is a shortage of data in tension. This study compares the tensile...

journal article 2023

document

Experimental and Numerical Assessment of Historical Steel-Concrete Composite Bridge Decks Without Mechanical Connectors

Poliotti, M. (author), Yang, Y. (author), De Boer, Ane (author)

In old Dutch inner cities like Amsterdam a large number of steel-concrete bridge decks built between 1880 and 1960 remain in service nowadays and currently need assessment of their bearing capacity. A significant number of these decks were designed without any mechanical connectors like shear studs in the interface between concrete and steel....

conference paper 2023

document

Discharge performance of a high temperature phase change material with low-cost wire mesh

Opolot, Michael (author), Zhao, Chunrong (author), Keane, Partrick F. (author), Liu, Ming (author), Mancin, Simone (author), Bruno, Frank (author), Hooman, K. (author)

Thermal energy storage is increasingly needed in a sustainable world because of its potential of capturing waste heat and being incorporated in solar power plants. For power generation, in particular, as turbine technology advances, a demand for higher temperature thermal energy storage materials also grows. For this purpose, latent thermal...

journal article 2023

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Temperature effects on the behaviour of liquid-laminated embedded glass connections

Volakos, Efstratios (author), Davis, Chris (author), Teich, Martien (author), Lenk, Peter (author), Overend, M. (author)

Embedded load-bearing laminated glass connections have gained popularity in recent years due to their mechanical performance and aesthetic appeal. However, there is a paucity of data on their structural behaviour across a range of temperatures that may arise in building applications and there is also no simplified mechanics-based model for...

journal article 2023

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Experimental study of post-buckled single-stringer composite specimens under fatigue loads with different load levels and load ratios

Paz Mendez, J. (author), Raimondo, A. (author), Bisagni, C. (author)

This study aims at better understanding the damage tolerance of stiffened composite panels subjected to fatigue loads in the post-buckling regime. Ten single-stringer hat-stiffened specimens with an initial delamination between the skin and the stringer foot were manufactured, and then tested under quasi-static and fatigue loads in post...

journal article 2023

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Effect of bed roughness on the hydrodynamic properties of dam-break waves

Buitelaar, Maarten (author)

A dam-break wave can result in considerable damages and casualties. Events that can lead to such waves include dike and dam breaches, storm surges and impulse waves. Dutch history is familiar with a number of coastal dike breaches but also river dike breaches have occurred, resulting in dam-break waves reaching far inland. Beyond the Netherlands...

master thesis 2022

document

Review on floating wave-wind energy converter plants: Nonlinear dynamic assessment tools

Saeidtehrani, S. (author), Fazeres-Ferradosa, Tiago (author), Rosa-Santos, Paulo (author), Taveira-Pinto, Francisco (author)

Hybrid wave-wind energy converters are considered an innovative solution to decrease costs in the various phases of installation and operation and lead to a lower Levelized Cost of Energy. Currently, there are different concepts in various Technology Readiness Levels. This paper provides a comprehensive review of existing wave-wind energy...

review 2022

document

Multi-scale experimental testing on variable stiffness and damping components for semi-active structural control

Wang, Qinyu (author), Senatore, Gennaro (author), Jansen, K.M.B. (author), Habraken, Arjan (author), Teuffel, Patrick (author)

This paper presents experimental testing of a new semi-active vibration control device comprising a shape memory polymer (SMP) core that is reinforced by an SMP-aramid composite skin. This control device works as a load-transfer component that can be integrated into truss and frame structures in the form of a joint. At the material level,...

journal article 2021

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Experimental identification of the dynamic behaviour of pile-soil system installed by means of three different pile-driving techniques

Tsetas, A. (author), Sánchez Gómez, S. (author), Tsouvalas, A. (author), van Beek, C. (author), Sadeghi Tehrani, F. (author), Kementzetzidis, E. (author), Pisano, F. (author), Elkadi, A.S.K. (author), Segeren, M.L.A. (author), Molenkamp, T. (author), Metrikine, A. (author)

A novel pile-driving technique, named Gentle Driving of Piles (GDP), that combines axial low-frequency and torsional high-frequency vibrations has been developed and tested recently. During the experimental campaign, several piles were installed onshore, making use of the GDP shaker. Besides those, a number of additional piles were installed...

conference paper 2020

document

Micromechanical testing and modelling of blast furnace slag cement pastes

Šavija, B. (author), Zhang, H. (author), Schlangen, E. (author)

This work aims to understand deformation and fracture processes in blast furnace slag cement pastes made using CEM III/B which is commonly used in the Dutch infrastructure sector. First, based on our previous work on Portland cement pastes, a micromechanical model utilizing nanoindentation and X-ray computed tomography (CT) for input is...

journal article 2020

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Structural glass beams with embedded GFRP, CFRP or steel reinforcement rods: Comparative experimental, analytical and numerical investigations

Bedon, Chiara (author), Louter, P.C. (author)

The use of hybrid and composite solutions for structural applications represents a common approach for the development of safe design principles. Consolidated examples exist for concrete, steel and masonry structures. As a general rule, materials are combined so as to obtain an enhanced redundancy, strength and/or (lateral) stiffness for these...

journal article 2019

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Bond behavior in NSM-strengthened masonry

Maljaee, Hamid (author), Ghiassi, B. (author), Lourenço, Paulo B. (author)

Near Surface Mounted (NSM) reinforcement is an interesting technique for seismic strengthening of masonry and historical structures. Despite having several advantages compared to conventional techniques, little attention has been given to understanding the involved mechanisms (such as bond behavior) in the performance of masonry components...

journal article 2018

document

Axial monotonic and cyclic testing of micropiles in loose sand

Matos, R. (author), Pinto, P. (author), Rebelo, C. (author), Veljkovic, M. (author), Simões Da Silva, L. (author)

Micropiles, which are small-diameter deep foundation solutions with diameters that can measure up to 300 mm, are often used to reinforce new and existing foundations. Their use in the foundations of structures with high eccentricity, such as wind towers when subjected to wind loads, may lead to more efficient and economical solutions. As the...

journal article 2018

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A multiscale experimental characterisation of Dutch unreinforced masonry buildings

Messali, F. (author), Esposito, R. (author), Jafari, S. (author), Ravenshorst, G.J.P. (author), Korswagen, Paul A. (author), Rots, J.G. (author)

In recent years, induced seismicity in the north of the Netherlands significantly increased. As a consequence, the seismic assessment of the built environment, which mainly consists of unreinforced masonry (URM) structures not designed for seismic loads, became of high relevance. Within this context, an extensive multiscale testing program has...

conference paper 2018

document

Experimental and numerical analysis of thick embedded laminated glass connections

Santarsiero, Manuel (author), Bedon, Chiara (author), Louter, P.C. (author)

Laminated glass components are usually realized by bonding glass plates using interlayer polymers that develop adhesion forces during lamination. Recently, these adhesion forces have been used also to realize special adhesive connections for structural glass components and assemblies. The typical example of such a joining technique is...

journal article 2018

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Tests on existing wall ties: shear and axial tests

Messali, F. (author), Skroumpelou, G. (author), Esposito, R. (author)

report 2017

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Characterizing the Material Properties of Dutch Unreinforced Masonry

Jafari, S. (author), Rots, J.G. (author), Esposito, R. (author), Messali, F. (author)

In the northern part of the Netherlands, The recent seismic activities have raised concerns about the behavior of unreinforced masonry structures which were not designed and constructed to resist seismic loading. The first step towards assessment of seismic behavior of masonry structures is to characterize the material properties. This...

journal article 2017

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A fractional-order positive position feedback compensator for active vibration control

Marinangeli, L. (author), Alijani, F. (author), Hassan HosseinNia, S. (author)

In this paper a novel Active Vibration Control (AVC) strategy based on fractional-order calculus is developed. A fractional-order Positive Position Feedback (PPF) compensator is proposed to overcome the limitations of the commonly used integer-order PPF such as: frequency spillover, amplitude amplification in the quasi-static region of the...

journal article 2017