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Kolken, H.M.A. (author), Garcia, A. Fontecha (author), Du Plessis, A. (author), Rans, C.D. (author), Mirzaali, Mohammad J. (author), Zadpoor, A.A. (author)Meta-biomaterials offer a promising route towards the development of life-lasting implants. The concept aims to achieve solutions that are ordinarily impossible, by offering a unique combination of mechanical, mass transport, and biological properties through the optimization of their small-scale geometrical and topological designs. In this...journal article 2021
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Olivier, G. (author), Csillag, Fruzsina (author), Tromp, Elisabeth (author), Pavlovic, M. (author)As traffic loads are ever increasing and bridge infrastructure is ageing, existing materials and connection methods used in renovation and new construction projects are reaching their limits. New materials, such as Fibre-Reinforced Polymer (FRP) in the form of hollow decks can be a competitive solution due to good resistance to fatigue and...journal article 2021
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Olivier, G. (author), Csillag, Fruzsina (author), Tromp, Elisabeth (author), Pavlovic, M. (author)Due to constantly increasing traffic loads and ageing infrastructure, innovative materials for implementation in renovation and new bridge construction projects are gaining attention. One such innovation is hybrid structures consisting of Glass Fibre-Reinforced Polymer (GFRP) composite decks connected to a steel girder(s) superstructure. By...journal article 2021
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Raimondo, A. (author), Bisagni, C. (author)The fatigue life prediction of post-buckled composite structures represents still an unresolved issue due to the complexity of the phenomenon and the high costs of experimental testing. In this paper, a novel numerical approach, called “Min-Max Load Approach”, is used to analyze the behavior of a composite single-stringer specimen with an...journal article 2020
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Stambaugh, K.A. (author)Ships must perform their missions with a high degree of reliability to maximize availability through their service life. The ultimate safety of the hull structure is time-dependent with degradation caused by the operational environment. Achieving the fore mentioned reliability and mission availability requirements are complicated because ships...doctoral thesis 2020
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Iliopoulos, Athanasios P. (author), Jones, Rhys (author), Michopoulos, John G. (author), Phan, Nam (author), Rans, C.D. (author)Understanding and characterizing crack growth is central to meeting the damage tolerance and durability requirements delineated in USAF Structures Bulletin EZ-SB-19-01 for the utilization of additive manufacturing (AM) in the sustainment of aging aircraft. In this context, the present paper discusses the effect of differentAMprocesses,...journal article 2020
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Raimondo, A. (author), Doesburg, S.A. (author), Bisagni, C. (author)In this work, an approach based on the Virtual Crack Closure Technique, included in the commercial finite element code ABAQUS, is adopted to study the propagation of delamination in composite structures under quasi-static and fatigue loads. The methodology, originally capable of simulating only delamination under quasi-static loads, has...journal article 2020
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Pedrosa, Bruno (author), Correia, José A.F.O. (author), Rebelo, Carlos A.S. (author), Veljkovic, M. (author)In North America and Europe, there is a significant number of centenary metallic bridges that require maintenance and strengthening operations. These structures need to be adapted to increasing traffic intensities, and their structural integrity should be constantly evaluated. Fatigue damages were not considered in the original design of old...journal article 2020
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Wang, H. (author), Liu, X. (author), van de Ven, Martin (author), Lu, Guoyang (author), Erkens, S. (author), Scarpas, Athanasios (author)Recently warm mix asphalt (WMA) technologies have been introduced to rubberized asphalt mixtures to decrease the required construction temperatures and to alleviate the hazardous gas emissions. Rubberized asphalt pavements combining with WMA have the potential to improve the long-term pavement performance. This study aims to investigate the...journal article 2020
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Ferreira Motta Junior, R. (author), Alderliesten, R.C. (author), Shiinoc, Marcos Yutaka (author), Cioffia, Maria Odila Hilário (author), Voorwald, Herman Jacobus Cornelis (author)Current models for delamination propagation prediction in fiber-reinforced polymer (FRP) composites exhibit limitations to explain the physics underlying the mechanisms of damage formation in fatigue. In order to contribute in this field, this research focuses on the study of damage development within a single loading cycle of FRP double...journal article 2020
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Rajpal, D. (author), Kassapoglou, C. (author), De Breuker, R. (author)An analytical model to predict the fatigue life of a composite laminate is formulated. The model calculates stresses in each ply using classical lamination theory, degrades the residual strength using the linear wear-out law and predicts failure based on Tsai Wu failure theory. The cycles to failure are predicted using the updated cycle-by...journal article 2019
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Ribeiro, Fabricio N. (author), Martinez, M.J. (author), Rans, C.D. (author)The lack of a widely-accepted test standard for characterizing the mode II fatigue disbond growth behavior of adhesively bonded interfaces is a challenge to the research community in terms of producing consistent and repeatable results. Typically, researchers apply the End Notch Flexure specimen, which is already used for static delamination...journal article 2019
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Gupta, Ravi Shankar (author), Xin, H. (author), Veljkovic, M. (author)Orthotropic Steel Decks (OSDs) are widely used in various types of steel bridges due to its benefits of light weight, high load bearing capacity and speedy construction. However, fatigue remains as the predominant problem for OSDs. Many researchers have investigated fatigue issues of welded joints through experiments but is not a cost-effective...journal article 2019
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Maleki, Abdullah (author), Saeedifar, M. (author), Ahmadi Najafabadi, Mehdi (author), Zarouchas, D. (author)The aim of this study is to investigate the failure of cracked aluminum plates repaired by one-side composite patches under fatigue loading using Acoustic Emission (AE) and fractography images. Rectangular specimens made of 6061 aluminum alloy with central through thickness pre-cracks were repaired using glass/epoxy laminated patches. The...journal article 2019
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Abambres, Miguel (author), Lantsoght, E.O.L. (author)When concrete is subjected to cycles of compression, its strength is lower than the statically determined concrete compressive strength. This reduction is typically expressed as a function of the number of cycles. In this work, we study the reduced capacity as a function of a given number of cycles by means of artificial neural networks. We used...journal article 2019
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Bisagni, C. (author)The fatigue life prediction of post-buckled composite structures represents still an unresolved issue due to the complexity of the phenomenon and the high costs of experimental testing. In this paper, a novel numerical approach, called “Min-Max Load Approach” is adopted to analyze the behavior of a single-stringer composite specimen with an...conference paper 2019
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Raimondo, A. (author), Bisagni, C. (author)This paper focuses on a novel numerical formulation based on cohesive elements and S-N diagram to simulate fatigue-driven delamination in composite laminates. The constitutive model adopts a two-parameters heuristic equation, which coefficients are evaluated using an idealization of the S-N diagram rather than the more commonly used Paris law....conference paper 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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Lantsoght, E.O.L. (author), van der Veen, C. (author), Koekkoek, Rutger (author), Sliedrecht, Henk (author)Previous research showed that the capacity of existing slab-between-girder bridges is larger than expected based on the punching shear capacity prescribed by the governing codes, as a result of compressive membrane action. A first series of fatigue tests confirmed that compressive membrane action also acts under cycles of loading. However, a...journal article 2019
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Lantsoght, E.O.L. (author), Koekkoek, Rutger (author), van der Veen, C. (author), Sliedrecht, Henk (author)In the Netherlands, the assessment of existing prestressed concrete slab-between-girder bridges has revealed that the thin, transversely prestressed slabs may be critical for static and fatigue punching when evaluated using the recently introduced Eurocodes. On the other hand, compressive membrane action increases the capacity of these slabs,...journal article 2019