Searched for: subject:"Laminates"
(1 - 20 of 121)

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Alderliesten, R.C. (author)
With the introduction of fibre metal laminates (FMLs) as a (fatigue) damage tolerant material concept in aeronautics, an interesting field emerged where fatigue damage interaction plays a dominant role. The hybrid concept effectively demands evaluating fatigue damage growth based on fracture phenomena typical for both metals and fibre...
journal article 2019
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Daneshjoo, Z. (author), Amaral, L. (author), Alderliesten, R.C. (author), Shokrieh, M. M. (author), Fakoor, M. (author)
This paper demonstrates how the critical strain energy density in the delamination tip vicinity may be used to explain the physics of delamination growth under mixed mode I/II. A theory previously proposed to physically relate mode I and mode II delamination growth is further extended towards describing the onset of mixed mode I/II...
journal article 2019
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Labans, E. (author), Bisagni, C. (author)
The ability to steer carbon fibre tapes, varying the tow angle, can widen the designs possibilities of cylindrical shells that are one of the main components of aerospace structures. This research presents experimental and numerical investigation of two carbon fibre reinforced plastic cylindrical shells – a cylinder with conventional layup made...
journal article 2019
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Lu, X. (author), Ridha, M. (author), Chen, B. (author), Tan, V. B.C. (author), Tay, T. E. (author)
The cohesive element (CE) has been widely used to model delamination in laminated composites. The penalty stiffness, interfacial strength and fracture toughness are three CE parameters that often determine the accuracy of the numerical analysis by finite elements (FEs). The fracture toughness may be experimentally determined through standard...
journal article 2019
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Daneshjoo, Z. (author), Shokrieh, Mahmood M. (author), Fakoor, Mahdi (author), Alderliesten, R.C. (author), Zarouchas, D. (author)
In order to understand the physics of the delamination onset in laminated composites, an experimental investigation of delamination growth is presented. The main objective of this paper is to demonstrate that delamination onset occurs at lower values than Gc defined by the ASTM standards, and that the strain energy release rate level at which...
journal article 2019
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Daneshjoo, Z. (author), Shokrieh, M. M. (author), Fakoor, M. (author), Alderliesten, R.C. (author)
In this paper, by considering the absorbed energy in the fracture process zone and extension of the minimum strain energy density theory for orthotropic materials, a new mixed mode I/II failure criterion was proposed. The applicability of the new criterion, to predict the crack growth in both laminated composites and wood species, was...
journal article 2018
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Zhao, Y. (author), Alderliesten, R.C. (author), Zhou, Zhengong (author), Fang, Guodong (author), Zhang, Jiazhen (author), Benedictus, R. (author)
In general, a finite width correction to stress intensity factor (SIF) is required in the fatigue crack growth. The finite width correction factor can be explained physically from the energy point of view. It is assumed that the finite width correction factor primarily constitutes an energy correction factor, i.e. it corrects the applied load...
journal article 2018
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Saeedifar, M. (author), Najafabadi, Mehdi Ahmadi (author), Zarouchas, D. (author), Toudeshky, Hossein Hosseini (author), Jalalvand, Meisam (author)
Despite the key advantages of Fiber Reinforced Polymer (FRP) composites, they are susceptible to Barely Visible Impact Damage (BVID) under transverse loadings. This study investigates BVID in two quasi-isotropic carbon/epoxy laminates under quasi-static indentation and Low-Velocity Impact (LVI) loadings using Acoustic Emission (AE). First,...
journal article 2018
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Abouhamzeh, M. (author), Nardi, D. (author), Leonard, R.A. (author), Sinke, J. (author)
During the automated manufacturing of fibre reinforced laminates, defects can be produced. Gaps and overlaps between adjacent prepreg layers can be produced in composites during the tape-layup process. However, the topic is not yet studied for hybrid materials, in which metal sheets and thin prepreg layers lead to different effects due to the...
journal article 2018
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Wang, W. (author), Rans, C.D. (author), Benedictus, R. (author)
Mechanically fastened joints are susceptible to the presence of multiple-site damage (MSD) cracks in the critical fastener row. Different from the MSD growth in joints consisting of metallic substrates, the two coupled metal crack growth and interfacial delamination propagation failure mechanisms in Fibre Metal Laminates (FMLs) make the...
journal article 2018
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Saeedifar, M. (author), Najafabadi, Mehdi Ahmadi (author), Zarouchas, D. (author), Toudeshky, Hossein Hosseini (author), Jalalvand, Meisam (author)
This study focuses on the clustering of the indentation-induced interlaminar and intralaminar damages in carbon/epoxy laminated composites using Acoustic Emission (AE) technique. Two quasi-isotropic specimens with layups of [60/0/-60]4S (is named dispersed specimen) and [604/04/-604]S (is named blocked specimen) were fabricated and subjected to...
journal article 2018
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Sobhani, Anvar (author), Saeedifar, M. (author), Najafabadi, Mehdi Ahmadi (author), Fotouhi, Mohamad (author), Zarouchas, D. (author)
This study introduces a comprehensive set of designed and tested glass/epoxy composites, AE monitoring and signal processing techniques; (i) to investigate the effect of multiple delaminations on buckling and post-buckling behaviors of laminated composites and (ii) to evaluate Acoustic Emission (AE) technique ability to monitor the buckling...
journal article 2018
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Ioannidou Kati, Anna (author), Santarsiero, Manuel (author), Louter, C. (author)
The connections between glass components are very critical aspects of structural glass design. Laminated steel-to-glass connections have recently been developed that combine high strength and transparency. This work focuses on the Transparent Structural Silicone Adhesive (TSSA), produced by Dow Corning. TSSA is typically used for the realization...
conference paper 2018
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Rodichev, Yurii (author), Veer, F.A. (author), Strizhalo, Vladimir (author), Soroka, Elena (author), Shabetia, Alexander (author)
The subject area "structural strength of materials" is defined generally as а complex of strength characteristics of materials and structural elements, obtained under special mechanical tests. It is shown that these tests should take into account not only the physical and mechanical properties of the material, but technology, blank processing,...
conference paper 2018
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Lu, X. (author), Chen, B. (author), Tan, V. B.C. (author), Tay, T. E. (author)
A three-dimensional separable cohesive element (SCE) is proposed to enable the modelling of interaction between matrix cracking and interfacial delamination in laminated fibre-reinforced composite materials. It is demonstrated that traditional cohesive elements are incapable of modelling the coupled failure mechanisms accurately if...
journal article 2018
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Nardi, D. (author), Abouhamzeh, M. (author), Leonard, R.A. (author), Sinke, J. (author)
Gaps and overlaps between pre-preg plies represent common flaws in composite materials that can be introduced easily in an automated fibre placement manufacturing process and are potentially detrimental for the mechanical performances of the final laminates. Whereas gaps and overlaps have been addressed for full composite material, the topic...
journal article 2018
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Peeters, D.M.J. (author), Lozano, Gustavo Gonzalez (author), Abdalla, M.M. (author)
A method to optimise the fibre angle distribution of variable stiffness laminates is proposed. The proposed method integrates a fibre angle retrieval step with a fibre angle optimisation procedure. A multi-level approximation approach is used in combination with the method of successive approximations. First, fibre angle retrieval is done by...
journal article 2018
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Bisagni, C. (author), Furfari, Domenico (author), Pacchione, Marco (author)
An experimental study has been carried out to investigate the behaviour of co-bonded carbon fibre reinforced plastics joints with a novel design incorporating a through the thickness local reinforcement. Different specimens were manufactured to investigate static and fatigue behaviour, as well as delamination size after impact and damage...
journal article 2018
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Nardi, D. (author), Abouhamzeh, M. (author), Leonard, R.A. (author), Sinke, J. (author)
Gaps in pre-preg plies, in a case when adjacent plies do not align perfectly, may represent a significant issue in an automated fibre placement manufacturing process and can be detrimental to the properties of the final laminates. In order to tackle the consequences of gaps in the composite material, a comprehensive research has to be performed....
conference paper 2018
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Santarsiero, Manuel (author), Bedon, Chiara (author), Louter, C. (author)
Laminated glass components are usually realized by bonding glass plates using interlayer polymers that develop adhesion forces during lamination. Recently, these adhesion forces have been used also to realize special adhesive connections for structural glass components and assemblies. The typical example of such a joining technique is...
journal article 2018
Searched for: subject:"Laminates"
(1 - 20 of 121)

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