Searched for: subject%3A%22fractures%22
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DASOPOULOS, DIONYSIOS (author)
Thick-section high strength steels (HSS) are widely used in engineering applications with requirements of high toughness and strength. Structural components are commonly joined by welding, known to significantly degrade the mechanical properties of steel due to changes in microstructure (e.g., grain size coarsening and martensite-austenite (M-A)...
master thesis 2023
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Brunner, A.E. (author), Alderliesten, R.C. (author), Pascoe, J.A. (author)
Quasi-static or cyclic loading of an artificial starter crack in unidirectionally fibre-reinforced composite test coupons yields fracture mechanics data—the toughness or strain-energy release rate (labelled G)—for characterising delamination initiation and propagation. Thus far, the reproducibility of these tests is typically between 10 and...
journal article 2023
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Prins, Jonne T.H. (author), Van Wijck, Suzanne F.M. (author), Leeflang, M.A. (author), Kleinrensink, Gert Jan (author), Lottenberg, Lawrence (author), de la Santa Barajas, Pablo Moreno (author), Van Huijstee, Pieter J. (author), Vermeulen, Jefrey (author), Verhofstad, Michael H.J. (author), Zadpoor, A.A. (author), Wijffels, Mathieu M.E. (author), Van Lieshout, Esther M.M. (author)
Background: The primary aim of this study was to determine and compare the biomechanical properties of a fractured or intact rib after implant fixation on an embalmed thorax. Methods: Five systems were fixated on the bilateral fractured or intact (randomly allocated) 6th to 10th rib of five post-mortem embalmed human specimens. Each rib...
journal article 2023
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Cupać, Jagoda (author), Louter, P.C. (author), Nussbaumer, Alain (author)
In the evolution of structural glass beam elements, the requirements for post-fracture load bearing capacity and safe failure behaviour have led to the development of reinforced and post-tensioned beams. Maximum bending capacity in the post-fracture state is normally associated with extensive yielding of the reinforcement, providing a safe...
journal article 2023
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Janssen, M.T.G. (author), Draganov, D.S. (author), Barnhoorn, A. (author), Wolf, K.H.A.A. (author)
As part of a seismic monitoring project in a geothermal field, where the feasibility of re-injection and storage of produced CO<sub>2</sub> is being investigated, a P- and S-wave seismic velocity characterisation study was carried out. The effect of axial and radial (up to 42 MPa) stress, pore pressure (up to 17 MPa), pore fluid (100% brine...
journal article 2023
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Liaudat, J. (author), Dieudonné, A.A.M. (author), Vardon, P.J. (author)
Geological Disposal Facilities (GDF) for radioactive waste will generally rely on clay-rich materials as a host geological formation and/or engineered barrier. Gas will be produced within the GDF, which can build up significant gas pressure and will activate the migration of gas through the clay materials via different transport mechanisms....
journal article 2023
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Allahyari, P. (author), Silani, M. (author), Yaghoubi Nasrabadi, V. (author), Milovanovic, P. (author), Schmidt, F. N. (author), Busse, B. (author), Qwamizadeh, M. (author)
Bone encompasses a complex arrangement of materials at different length scales, which endows it with a range of mechanical, chemical, and biological capabilities. Changes in the microstructure and characteristics of the material, as well as the accumulation of microcracks, affect the bone fracture properties. In this study, two-dimensional...
journal article 2023
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Wilbers, Julia (author)
Purpose. Distal radius fractures are common fractures of the wrist. These fractures are often displaced and need reduction, after adequate reduction, the patients will have follow-up X-rays to check if the fracture stays stable. This is important because surgery might be required if the fracture becomes unstable. This can lead to delayed surgery...
master thesis 2022
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Rademaker, Rolf (author)
The demand to build with wood and other bio-based materials has increased rapidly the last decade, due to the ambition to build more with sustainable building materials. One of the major challenges in building with wood, is to account for the lower strength and stiffness perpendicular to the grain. Wood is an anisotropic material, meaning the...
master thesis 2022
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Zhang, S. (author)
Alkali-activated Materials (AAMs), including those classified as geopolymer, are obtained through the reaction between a solid precursor and an alkaline solution. Compared with ordinary Portland cement (OPC) binders, these materials maintain comparable mechanical properties but have the advantage of reducing greenhouse gas emissions and...
doctoral thesis 2022
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Niehaus, Anya (author)
Pistons for reciprocating compressors for industrial applications are often made of specialised materials. These prove to have problems with manufacture due to the high quality and short production times needed in combination with a low production volume per design. Additive manufacturing, specifically selective laser melting, could solve the...
master thesis 2022
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Bristogianni, T. (author)
Cast glass has great application potential in the architectural realm, yet, despite its possibilities and attractiveness, designers, engineers and developers are, from an early design stage, hesitant to employ it; the limited available and craft-based manufacturing facilities, the questionable quality of the product, the missing engineering data...
doctoral thesis 2022
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Scheffer, Bouke (author)
This research describes how thermal fractures impact the near-wellbore (NWB) region of a depleted gasfield in a carbon sequestration project. As CO2 is usually injected in its supercritical phase, the injection fluid is injected on high pressures and low temperatures. This is in high contrast with the depleted gasfields, which have a low...
master thesis 2022
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de Hoop, S. (author)
Society relies on large amounts of energy to progress and allow for a high standard of living. The recent severe climate changes require advanced technologies related to cleaner energy resources. One such technology beneficial for accelerating this current energy transition is geothermal energy. This type of energy is often found in fractured...
doctoral thesis 2022
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Sofokleous, Irene (author)
Flat glass is a material which is used extensively in almost all the buildings, mainly as infill for windows or facade panels. However, neither glass production nor its recycling are sustainable processes, as both incorporate the use of gas furnaces, which produce high amounts of CO2 emissions. Thus, the re-use of glass seems the only way to...
master thesis 2022
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Gan, Y. (author)
Ageing is an inherent feature of cementitious materials. Ageing of material leads to gradual loss of the function of a concrete structure with increasing likelihood of failure. As one of the typical ageing phenomena, fatigue of concrete, has recently received considerable research attention. The phenomenon of concrete fatigue is complicated as...
doctoral thesis 2022
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Barreiros Jorge, Sofia (author)
Subsurface energy projects carry high risk due to the lack of data available to accurately model reservoir characteristics. There is a need for high level analysis to extrapolate subsurface data from a single point (i.e. a well). The focus of this study will be on fracture characterisation in a carbonate reservoir located within the Geneva Basin...
master thesis 2022
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Cheekati, Vishnu (author)
In recent decades, high strength steels in thick sections have been increasingly used in offshore structures where they are subjected to harsh service conditions such as freezing temperatures and high static/dynamic loading. At these conditions they are susceptible to a transition from ductile failure to a dangerous brittle (cleavage)...
master thesis 2022
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Terol Sanchez, María (author)
This study addresses the effects of additive manufacturing (AM) parameters and post-processing heat treatments on the microstructure and fracture toughness behavior of functionally graded and non-graded Inconel 718. Laser powers of 250W and 950W were used to fabricate non-graded and graded specimens. To study the effects of the microstructural...
master thesis 2022
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Gijzenberg, Kees-Jaap (author)
The goal of the thesis is to investigate two main questions for the purpose of modelling fractures in timber with a finite element method. The first question is to evaluate the use of digital image correlation during a three point bending test to obtain mean values for tensile strength and fracture energy, and the follow up question is if it is...
master thesis 2022
Searched for: subject%3A%22fractures%22
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