Searched for: author%3A%22Bisagni%2C+C.%22
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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
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Raimondo, A. (author), Bisagni, C. (author)
This paper presents a numerical approach for investigating fatigue delamination propagation in composite stiffened panels loaded in compression in the post-buckling field. These components are widely utilized in aerospace structures due to their lightweight and high-strength properties. However, fatigue-induced damage, particularly delamination...
journal article 2024
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Paz Mendez, J. (author), Raimondo, A. (author), Bisagni, C. (author)
In this research, conduction welded C-struts, part of a thermoplastic composite fuselage designed and manufactured in the framework of the Clean Sky 2 STUNNING project, are investigated. Five specimens made of two C-section profiles are manufactured and welded using conduction welding in three different configurations with variations in the...
journal article 2024
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Rudd, M.T. (author), Schultz, Marc R. (author), Bisagni, C. (author)
Traditionally, launch vehicles are constructed with a series of buckling-prone thin-walled cylindrical and conical shells, in which the buckling behavior of these shells has been well studied and buckling design guidance exists. Conical-cylindrical shell geometry is now being utilized for launch-vehicle stage adapters and payload adapters due...
conference paper 2024
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Rudd, Michelle Tillotson (author), Schultz, Marc R. (author), Gardner, Nathaniel W. (author), Kosztowny, Cyrus J. R. (author), Bisagni, C. (author)
Launch-vehicle shell structures, which can be comprised of both cylindrical and conical sections, are known to be susceptible to buckling due to their large radius-to-thickness ratios. The advancements in composite manufacturing and numerical methods have enabled designers to consider more nontraditional shapes, such as connecting the conical...
conference paper 2023
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Rudd, M.T. (author), Eberlein, David J. (author), Waters, W. Allen (author), Gardner, Nathaniel W. (author), Schultz, Marc R. (author), Bisagni, C. (author)
Launch vehicle structures, such as payload adapters and interstages, are increasingly designed and constructed using composite materials due to their high stiffness- and strength-to-weight ratios. Therefore, it is important to develop a validated finite element modeling methodology for designing and analyzing composite launch-vehicle shell...
journal article 2023
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Tijs, B.H.A.H. (author), Dávila, C. G. (author), Turon, A. (author), Bisagni, C. (author)
The work presented in this paper investigates the ability of continuum damage models to accurately predict matrix failure and ply splitting. Two continuum damage model approaches are implemented that use different stress–strain measures. The first approach is based on small-strain increments and the Cauchy stress, while the second approach...
journal article 2023
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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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van Dooren, K.S. (author), Bisagni, C. (author)
Thermoplastic composite three-stringer panels with omega stiffeners and conduction welded joints are designed, analysed and tested until final failure to investigate the performance of the welded joint in post-buckling. The three-stringer panels are designed to be structurally representative of the fuselage demonstrator of the Clean Sky 2...
journal article 2023
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van Dooren, K.S. (author), Tijs, B.H.A.H. (author), Waleson, J. E.A. (author), Bisagni, C. (author)
Two aeronautical thermoplastic composite stiffened panels are analysed and tested to investigate the buckling behaviour, the skin-stringer separation and the final failure mode. The panels are made of fast crystallising polyetherketoneketone carbon composite, have three stringers with an angled cap on one side, and are joined to the skin by a...
journal article 2023
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Álvarez, J. G. (author), Abramovich, Haim (author), Bisagni, C. (author)
This paper presents an experimental investigation on vibrations of heated composite plates leading to thermal buckling. The tests were performed considering two main goals: the application of the Vibration Correlation Technique for the detection of thermal buckling in composite plates; and the exploration of the frequency variations before...
journal article 2022
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De Breuker, R. (author), Benedictus, R. (author), Bisagni, C. (author), Boneschansker, I. (author), Melkert, J.A. (author), Snellen, M. (author), Veldhuis, L.L.M. (author), Verdegaal, F.M. (author), Visser, P.N.A.M. (author), Werij, H.G.C. (author)
The Faculty of Aerospace Engineering is one of eight faculties at Delft University of Technology. It is one of the most comprehensive academic and innovation communities worldwide focusing on aerospace engineering. Its 120 professors and 70 researchers are mentoring and teaching around 2,800 BSc/MSc students and more than 350 PhD candidates...
journal article 2022
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Subramanian, N. (author), Bisagni, C. (author)
The effectiveness of carbonaceous nanoparticles in arresting and delaying damage in nanocomposites has been attributed to multiscale toughening mechanisms. To explore their application in joined interfaces of composites, this study investigates the use of carbon nanotube (CNT) interleaved films for co-cured joining of composite parts and their...
conference paper 2022
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Maierhofer, Thomas, (author), Loukaidesa, Evripides G. (author), Hernandez, Thibault (author), Carrc, Craig (author), Bisagni, C. (author), Butler, Richard, (author)
Modern aerospace structures see increasing use of combinations of thermoplastic and thermoset composite components, requiring the development of efficient joining methods for dissimilar matrix materials. This study aimed to investigate the Mode I fracture toughness and performance of resistance-welded and co-bonded thermoset-thermoplastic...
conference paper 2022
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Tijs, B.H.A.H. (author), Abdel-Monsef, S. (author), Renart, J. (author), Turon, A. (author), Bisagni, C. (author)
Thermoplastic composites can enable the development of new manufacturing techniques to make the aviation industry more sustainable while at the same time greatly benefit cost-efficient and high-volume production. One of the thermoplastic composite materials that can enable this transition is AS4D/PEKK-FC. In this work, the interlaminar...
journal article 2022
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Bisagni, C. (author), Raimondo, A. (author), Atanasovska, I. (author), Milic, M. (author), Troian, R. (author), Frulla, G. (author), Polla, A. (author), Cora, N. (author), Bekci, M. L. (author)
In this paper, a comparison between six finite element models of a representative wing structural component performed in the context of Optimised Design for Inspection (ODIN) project of the European Cooperation in Science and Technology (COST) is presented. Six partners from six different countries involved in the project received the drawing...
journal article 2022
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Raimondo, A. (author), Dávila, Carlos G. (author), Bisagni, C. (author)
This paper evaluates the capabilities of the recently developed CF20 cohesive fatigue model, which can predict crack initiation as well as the rates of crack propagation by relying on intrinsic relationships between a stress-life diagram and its corresponding Paris law. The model is validated here using a partially reinforced double...
journal article 2022
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Bisagni, C. (author)
contribution to periodical 2022
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Gutierrez Alvarez, J. (author), Bisagni, C. (author)
This paper presents an experimental and numerical study of composite plates, analyzing the interaction between mechanical and thermal loads related to buckling and the occurrence of mode jumping. A novel experimental setup for thermomechanical testing was developed. The setup is conceived around a frame with a low coefficient of thermal...
journal article 2022
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Tijs, B.H.A.H. (author), Doldersum, M.H.J. (author), Turon, A. (author), Waleson, J. E.A. (author), Bisagni, C. (author)
The capability of joining two thermoplastic composite parts by welding is a key technology to reduce the weight and cost of assembled parts and enables high volume manufacturing of future aeronautical structures made of thermoplastic composite materials. However, there is not much experimental understanding of the mechanisms involving welded...
journal article 2022
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