Searched for: subject%3A%22Mechanical%255C+metamaterial%22
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Habbal, Samer (author)
In the era of advancing technology, the demand for specialized engineering materials has risen significantly. Active Mechanical Metamaterials (AMMs) offer a novel approach to engineering materials with tunable mechanical properties. This research focuses on developing tunable damping active mechanical metamaterials (AMMs) by incorporating...
master thesis 2024
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Schouten, Koen (author)
Materials and material structures with highly specialised and unique mechanical properties are sought after in order to gain the most performance from a system. Materials generally have fixed mechanical properties and are unable to adapt in the case of new or unforeseen situations. Active mechanical metamaterials are able to alter the...
master thesis 2023
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Lagemann, Luca (author)
Mechanical metamaterials are architected materials with unique properties derived from their internal structure, rather than the material they consist of. Introducing distinct stable states into the material architecture allows the creation of mechanical metamaterials with multiple effective properties that can be altered post-fabrication. So...
master thesis 2023
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Ayman Ahmed Mubeen, AYMAN AHMED MUBEEN (author)
Shape morphing is a prevalent feature in all living organisms. Incorporating shape-morphing capabilities into engineered scaffolds in the field of tissue engineering by virtue of 4D printing would allow for structures to closely mimic in-vivo conditions, and dynamically interact with changing cellular microenvironments. Engineered scaffolds...
master thesis 2023
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Pahlavani, H. (author)
doctoral thesis 2023
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Yang, J. (author), Chen, Xiaohong (author), Sun, Yuanxi (author), Feng, Chen (author), Yang, Zheng (author), Zadpoor, A.A. (author), Mirzaali, Mohammad J. (author), Bai, Long (author)
The advent of additive manufacturing has facilitated the design and fabrication of hybrid lattice structures with multiple morphologies. These structures combine multiple distinct architectures into a single structure with an exceptional performance that far exceeds that of each constituting architecture. However, combining strut-based...
journal article 2023
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Pahlavani, H. (author), Tsifoutis-Kazolis, Kostas (author), Cruz Saldivar, M. (author), Mody, Prerak (author), Zhou, J. (author), Mirzaali, Mohammad J. (author), Zadpoor, A.A. (author)
Practical applications of mechanical metamaterials often involve solving inverse problems aimed at finding microarchitectures that give rise to certain properties. The limited resolution of additive manufacturing techniques often requires solving such inverse problems for specific specimen sizes. Moreover, the candidate microarchitectures...
journal article 2023
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Wu, Chu-Hsuan (author)
Nature has always had randomness in many ways. Natural cellular structures, specifically, have used randomized microarchitectures to form mechanically efficient materials, such as wood, sponge, and trabecular bone. Mechanical metamaterials are a class of artificial microarchitected materials designed to carry tensions and compressions with...
master thesis 2022
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Kuipers, T. (author)
The products in our day to day lives have different requirements in different regions of the product. One way of dealing with such spatially varying requirements is to divide the product into multiple parts and assign each part a different material. For example, the handle of a drill is often fitted with a rubbery material which gives it more...
doctoral thesis 2022
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Saravana Jothi, Navin Shankar (author)
Metamaterials are engineered structures that exhibit exotic properties that are obtained from the unit cell geometry and arrangement instead of its constituent materials. Mechanical metamaterials alter mechanical stimuli and they can exhibit unique elastic properties such as negative stiffness, shear modulus, bulk modulus, and Poisson’s ratio....
master thesis 2021
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Ghavidelnia, Naeim (author), Bodaghi, Mahdi (author), Hedayati, R. (author)
Stress shielding and micromotions are the most significant problems occurring at the bone-implants interface due to a mismatch of their mechanical properties. Mechanical 3D metamate-rials, with their exceptional behaviour and characteristics, can provide an opportunity to solve the mismatch of mechanical properties between the bone and...
journal article 2021
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Mirzaali, Mohammad J. (author), Ghorbani, Aref (author), Nakatani, Kenichi (author), Nouri Goushki, M. (author), Tümer, N. (author), Callens, S.J.P. (author), Janbaz, S. (author), Accardo, A. (author), Bico, José (author), Habibi, Mehdi (author), Zadpoor, A.A. (author)
The design of advanced functional devices often requires the use of intrinsically curved geometries that belong to the realm of non-Euclidean geometry and remain a challenge for traditional engineering approaches. Here, it is shown how the simple deflection of thick meta-plates based on hexagonal cellular mesostructures can be used to achieve...
journal article 2021
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Khoshgoftar, Mohammad Javad (author), Barkhordari, Ali (author), Seifoori, Sajjad (author), Mirzaali, Mohammad J. (author)
The re-entrant structures are among the simple unit cell designs that have been widely used in the design of mechanical metamaterials. Changing the geometrical parameters of these unit cell structures, their overall elastic properties (i.e., elastic stiffness and Poisson’s ratio), can be simultaneously tuned. Therefore, different design...
journal article 2021
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Ghavidelnia, Naeim (author), Bodaghi, Mahdi (author), Hedayati, R. (author)
Mechanical metamaterials are man-made rationally-designed structures that present un-precedented mechanical properties not found in nature. One of the most well-known mechanical metamaterials is auxetics, which demonstrates negative Poisson’s ratio (NPR) behavior that is very beneficial in several industrial applications. In this study, a...
journal article 2021
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Thomas, Dexter (author)
The concept of metamaterials has been extended from electromagnetics and acoustics to the field of mechanics. Metamaterials do not derive their properties from those of the composite, but from the artificial meso-scale geometry as well as from the unit cell structure. Mechanical metamaterials are constrained in that the mechanical properties are...
master thesis 2020
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van Leijsen, P.M. (author)
During this project the possibilities of enriching the functionality of an Ankle Foot Orthosis (AFO) by implementing mechanical metamaterials are researched. The project is executed for Buchrnhornen, a company based in Eindhoven which has over 70 years of experience in manufacturing orthopaedic shoes and orthosis in a traditional way. Mechanical...
master thesis 2020
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Broeren, F.G.J. (author), van der Wijk, V. (author), Herder, J.L. (author)
In this paper, a pseudo-rigid body model is proposed for the analysis of a spatial mechanical metamaterial and its application is demonstrated. Using this model, the post-buckling behavior of the mechanical metamaterial can be determined without the need to consider the whole elastic structure, e.g., using finite-element procedures. This is done...
journal article 2020
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Blokland, Geert (author)
Auxetic materials exhibit material properties, which are usually not seen in nature. This type of materials belong to the class of mechanical metamaterials and can be used for e.g. energy absorption, cloaking of objects, shape morphing applications and the design of fiber-reinforced composites. They exhibit a negative Poisson’s value and derive...
master thesis 2019
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Houlder, Michael (author)
Mechanical metamaterials are a new emerging class of materials which achieve properties outside the bounds of conventional materials. A metamaterial consists of a unit cell which is periodically repeated in space. In this study, a new metamaterial unit cell is proposed, derived from a class of space structures known as deployable masts. What...
master thesis 2019
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de Jonge, Christa P. (author), Kolken, H.M.A. (author), Zadpoor, A.A. (author)
The concept of "mechanical metamaterials" has become increasingly popular, since their macro-scale characteristics can be designed to exhibit unusual combinations of mechanical properties on the micro-scale. The advances in additive manufacturing (AM, three-dimensional printing) techniques have boosted the fabrication of these mechanical...
review 2019
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