Searched for: contributor%3A%22Turteltaub%2C+S.R.+%28mentor%29%22
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Malladi, Avyadhish (author)
This thesis project focuses on the evaluation of the Extended Finite Element Model (XFEM) for modelling skin-stringer separation in thermoplastic composite stiffened panels. The study uses test results from a reference study in the literature on a PEKK-FC carbon composite panel with three stringers joined to the skin using a short-fibre...
master thesis 2024
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Costa Farinha, Daniel (author)
A new multiscale fracture mechanics methodology is being developed at TU Delft for composite materials. This methodology aims to unlock the use of hierarchical multiscale frameworks to link sub-ply fracture processes to laminate failure. In this thesis, this methodology is extended to 3D, both in terms of its analytical formulation and the...
master thesis 2023
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Madabhushi, Pranav (author)
To survive on the surface of a near atmosphere-less Mars, humans must be able to provide thermal energy to buildings to sustain temperature changes from -73°C to 20°C. The goal of the thesis is to create a passively-working thermal battery using materials currently available to humans; it must be the sole heat source to the Martian buildings....
master thesis 2023
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Vijaya Kumar, Harshavardhan (author)
Topology optimization (TO) has proven to be a capable design methodology for the realization of lightweight solutions that maximize structural stiffness or other design objectives. Due to its capability to be adapted to suit a wide range of objectives and constraints, both structural and non-structural, TO has been widely applied in all...
master thesis 2021
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Pasvanti, Nikoleta (author)
The demand for efficient lightweight structures grows rapidly in the aerospace sector. Topology optimization, introduced in the late 80s, is a method capable of producing such structures and has been mainly studied for isotropic materials. On the other hand, the performance of composite structures, which are already widely employed in the...
master thesis 2021
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Sanchez Bravo, Alex (author)
Wind turbines play an increasingly imporant role in the energy production of our time. In order to optimize the performance of wind turbine blades, this thesis work aims at assessing the possibility of using panel methods for gradient based optimization of the aerodynamics of wind turbine blades. Specifically, the method employed has used...
master thesis 2021
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Kumthekar, Anuj (author)
master thesis 2021
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Bharteeya, Siddharth (author)
The launch vehicle industry is undergoing a major shift as new commercial organizations are staking claim to large market shares with bold technologies. To stay competitive in this new era, launch vehicle companies must develop new technologies to reduce launch costs while serving the growing demand for space accessibility. A possible solution...
master thesis 2021
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van den Brink, Robbert-Jan (author)
Mines and improvised explosive devices are the cause of many mortalities of vehicle occupants. Both experimental and numerical research in this field aims to improve the safety of military vehicles. TNO has advanced Finite Element (FE) models to simulate such events. The numerical research is done to better understand mine blasts. Another aim is...
master thesis 2019
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SUAREZ MILLAN, RUBEN (author)
With a fast increasing use of composite materials in aerostructures, industry demands design tools capable to reduce experimental tests while providing reliable data. Multiscale simulations enable to model and analyze fracture processes at the microscale, thus delivering higher accuracy and fundamental information about crack processes which...
master thesis 2018
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Kiefer, Joshua (author)
More than half a century after the first application of composite materials in aircraft, the accurate prediction of their failure remains a pressing and unresolved issue. Another important limitation continues to be the low transverse strength of unidirectional composite plies, which can lead to premature failure in common laminates such as the...
master thesis 2018
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de la Mora Carles, Victor (author)
Fibre reinforced polymers are progressively substituting metallic materials in many aerospace structural applications. Composite materials present a higher specific stiffness and strength than metal alloys. In addition, composites show a high corrosion resistance and damage tolerance. However, the failure mechanisms of composite materials are...
master thesis 2018
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de Jong, Gijs (author)
The effective fracture behavior of a fiber-reinforced composite depends on both the design and manufacturing of the material. During manufacturing several type of defects can occur. One of these defects are micro-voids on the sub-ply level. These can consist of either matrix voids or gaps between the fibers due to the inability of the resin to...
master thesis 2018
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Mozo Gutierrez, Alvaro (author)
Aiming to enhance the performance of the industrial design process, structural optimization techniques have been proposed as an alternative to traditional design and optimization techniques.<br/>They own the potential of achieving an optimal distribution of the material through the design domain, thus reducing waste loss and weight, and...
master thesis 2018
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Wang, Yuanyuan (author)
Thick composite laminates can be used in aerospace and automotive industry replacing metals for weight saving.<br/>Increasing the thickness can bring more defects, like voids.<br/>This master thesis focuses on the multi-scale voids prediction and their mechanical effect simulation of thick composite laminates manufacturing by \ac{RTM}.<br/>It...
master thesis 2018
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Murali, Sneha (author)
Crack initiation and propagation in composite structures exists as a prominent knowledge gap in computational fracture mechanics. Prior to the development and implementation of fracture modules in FEM solvers, most studies were constrained to simple geometries and load cases. The set of parametric studies that constitute this thesis aims to...
master thesis 2017
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Carpi, Andrea (author)
This research investigates the role of how Finite Element simulation models reproduced progressively crushed Glass Fiber Reinforced Polymer (GFRP) parts. The proposed work is motivated by the research questions concerning what are the relevant critical modeling strategies that accurately reproduce the behavior of in-plane crushed laminated...
master thesis 2017
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Westbroek, Wim (author)
master thesis 2017
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Stoter, Stein (author)
In this work the residual-based variational multiscale method is presented in a discontinuous Galerkin framework. This so-called ‘DG-RVMS’ strategy is developed, extensively verified, and tested on a more complex case.<br/><br/>The proposed DG-RVMS paradigm consists of three principle components. First, the perelement weak form is coupled by...
master thesis 2017
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Baar, S. (author)
Many composite failure criteria suffer from serious flaws related to prediction accuracy and the number of tests required to apply them, as found for example during the World Wide Failure Exercises. In 2001, Jon Gosse of Boeing Phantom Works developed a new criterion for matrix failure. Initially known as Strain Invariant Failure Theory (SIFT),...
master thesis 2017
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