Searched for: subject%3A%22Stiffness%22
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Zhang, A. (author)
Bio-mediated methods, such as microbially induced carbonate precipitation (MICP) and enzyme induced carbonate precipitation (EICP), have gained considerable attention as alternatives to invasive ground improvement techniques. MICP and EICP use biogeochemical processes to drive carbonate precipitation and bind soil grains, thereby improving the...
doctoral thesis 2025
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Mak, Robin (author), Amoozandeh, A. (author), Radaelli, G. (author), Herder, J.L. (author)
Differential mechanisms are remarkable mechanical elements that are widely utilized in various systems; nevertheless, conventional differential mechanisms are heavy and difficult to use in applications with limited design space. This paper presents a curved differential mechanism that utilizes a lightweight, compliant structure. This...
journal article 2024
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Jain, A. (author), Marykovskiy, Yuriy (author), Metrikine, A. (author), van Dalen, K.N. (author)
Railway transition zones (RTZs) are regions where abrupt track stiffness changes occur that may lead to dynamic amplifications and subsequent track deterioration. The design challenges for these zones arise due to variations in material properties in both the depth (trackbed layers composed of different materials) and longitudinal directions of...
journal article 2024
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Hu, D. (author), Du, L. (author), Alfreider, Markus (author), Fan, J. (author), Kiener, Daniel (author), Zhang, Kouchi (author)
To fulfill the high-temperature application requirement of high-power electronics packaging, Cu nanoparticle sintering technology, with benefits in low-temperature processing and high-melting point, has attracted considerable attention as a promising candidate for the die-attach interconnect. Comprehensive mechanical characterization of the...
journal article 2024
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Amoozandeh, A. (author), Herder, J.L. (author), Radaelli, G. (author)
Compliant mechanisms have the potential to be utilized in numerous applications where the use of conventional mechanisms is unfeasible. These mechanisms have inherent stiffness in their range of motion as they gain their mobility from elastic deformations of elements. In most systems, however, complete control over the elasticity is desired....
journal article 2024
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Cop, Christopher P. (author), Jakubowski, Kristen L. (author), Schouten, A.C. (author), Koopman, Bart (author), Perreault, Eric J. (author), Sartori, Massimo (author)
Objective: Accurate estimation of stiffness across anatomical levels (i.e., joint, muscle, and tendon) in vivo has long been a challenge in biomechanics. Recent advances in electromyography (EMG)-driven musculoskeletal modeling have allowed the non-invasive estimation of stiffness during dynamic joint rotations. Nevertheless, validation has...
journal article 2024
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Adams, M.G.A. (author), Huijer, A.J. (author), Kassapoglou, C. (author), Vaders, Johannes A.A. (author), Pahlavan, Lotfollah (author)
The multimodal and dispersive character of ultrasonic guided waves (UGW) offers the potential for non-destructive evaluation of fiber-reinforced composite (FRC) materials. In this study, a methodology for in situ stiffness assessment of FRCs using UGWs is introduced. The proposed methodology involves a comparison between measured wave speeds of...
journal article 2024
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Amoozandeh, A. (author)
Industrial passive exoskeletons have been developed for years as a tool to reduce the physical workload of their users. They accomplish this by compensating for the user’s body weight and decreasing fatigue caused by repetitive loads. Despite their advantages, current exoskeletons have drawbacks that make them less convenient for users and thus...
doctoral thesis 2023
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van Keulen, D.C. (author)
The thixotropic properties of contemporary mortars allow the insertion of mortar in small vertical seams by using a mortar pump without the need for traditional formwork. In such a seam, a vertical mortar connection for the transfer of shear forces can be created by simply adding a profile to the mortar-to-concrete interfaces. In this way a...
doctoral thesis 2023
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Peternel, L. (author), Ajoudani, Arash (author)
Despite the significant progress made in making robots more intelligent and autonomous, today, teleoperation remains a dominant robot control paradigm for the execution of complex and highly unpredictable tasks. Attempts have been made to make teleoperation systems stable, easy to use, and efficient in terms of physical interactions between...
review 2023
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Shen, C. (author), Zhang, P. (author), Dollevoet, R.P.B.J. (author), Zoeteman, A. (author), Li, Z. (author)
While various train-borne techniques have been developed for measuring railway track stiffness, differentiating stiffness at different track layers remains a challenge. This study proposes a digital twin framework for the vehicle–track interaction system, which enables track stiffness evaluations based on axle box accelerations (ABA). The...
journal article 2023
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Tu, W. (author), Pascoe, J.A. (author), Alderliesten, R.C. (author)
Delamination growth is a key damage mode threatening the structural integrity of fibre reinforced polymer composite structures. To guide design and damage management of composite structures, research efforts have been made to understand delamination behaviours and establish standardized evaluation methods based mainly on one-dimensional...
conference paper 2023
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Kok, Sjaak (author), Amoozandeh, A. (author), Radaelli, G. (author)
Elastic structures that can deflect without springback, known as neutrally stable structures, form a remarkable group within their field, since they require the energetic state to remain unchanged during elastic deformation. Several examples in the literature obtain this state of neutral stability by the application of pre-stress, either as a...
journal article 2023
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Kolawole, F. O. (author), Peirlinck, M. (author), Cork, T. E. (author), Levenston, M. (author), Kuhl, Ellen (author), Ennis, D. B. (author)
Impaired cardiac filling in response to increased passive myocardial stiffness contributes to the pathophysiology of heart failure. By leveraging cardiac MRI data and ventricular pressure measurements, we can estimate in vivo passive myocardial stiffness using personalized inverse finite element models. While it is well-known that this...
journal article 2023
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Awasthy, Nikhil (author), Schlangen, E. (author), Hordijk, Dick (author), Šavija, B. (author), Lukovic, M. (author)
Concrete is characterized in terms of its engineering properties, mainly strength and stiffness, which are subsequently used in structural design. However, the apparent (i.e., measured) concrete properties are not intrinsic but dependent on the conditions under which the measurement is performed. Herein a combined experimental and numerical...
journal article 2023
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Gülmez, D.E. (author), Maldonado, Jesus (author), Masania, K. (author), Sinke, J. (author), Dransfeld, C.A. (author)
Chopped Tape Thermoplastic Composites (CTTCs) offer high formability and performance for complex-shaped components in the aerospace and automotive industries. However, the mesoscopic discontinuity leads to spatial variabilities and correspondingly high scatter in the elastic properties of CTTCs due to the random orientations of chopped tapes...
journal article 2023
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Shi, Can (author), Zhou, Yu (author), Xu, Lei (author), Zhang, Xu (author), Guo, Y. (author)
The dynamic performance of a railway track subjected to moving trains depends strongly on track support conditions. In reality, even for the well-constructed and well-maintained tracks, sleeper support stiffness and global track stiffness vary substantially along the track, which affects the train-track dynamic interactions, causing rapid...
review 2023
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Waterval, N. F.J. (author), Brehm, M. A. (author), Veerkamp, K. (author), Geijtenbeek, T. (author), Harlaar, J. (author), Nollet, F. (author), van der Krogt, M. M. (author)
To maximize effects of dorsal leaf ankle foot orthoses (AFOs) on gait in people with bilateral plantarflexor weakness, the AFO properties should be matched to the individual. However, how AFO properties interact regarding their effect on gait function is unknown. We studied the interaction of AFO bending stiffness with neutral angle and...
journal article 2023
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Wang, Junxian (author), Santhosh, Sabin (author), Colomés, Oriol (author), Capaldo, Matteo (author), Yang, Liang (author)
The hydrofoil harnesses wave energy and converts it into thrust. In this paper, we present the results of the first experimental study investigating the dynamic behavior of a fully passive foil with spring-loaded pitch and heave in regular waves. Our study shows that the real-time load signal is multi-harmonic with strong superposition,...
journal article 2023
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Li, Z. (author), Jiang, X. (author), Hopman, J.J. (author), Affolter, Christian (author)
This paper introduces a novel analytical approach aimed at predicting the growth of surface cracks in metallic pipes reinforced with Fibre-Reinforced Polymers (FRPs) subjected to cyclic bending and/or tension loads. The primary objective of this study is to develop a comprehensive analytical model that accounts for multiple factors...
journal article 2023
Searched for: subject%3A%22Stiffness%22
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