Experimental investigation of tensile and bond properties of Carbon-FRCM composites for strengthening masonry elements

Carozzi, Francesca Giulia; Bellini, Alessandro; D’Antino, Tommaso; Felice, Gianmarco de; Focacci, Francesco; Hojdys, Łukasz; Laghi, Luca; Lanoye, Emma; Micelli, Francesco; Panizza, Matteo; Poggi, Carlo

doi:10.1016/j.compositesb.2017.06.018

Cited by 236 publications

(108 citation statements)

References 35 publications

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“…Instead, when natural hemp fiber replaces the synthetic fiber, the experimental results confirm the bi-linear and tri-linear trends [28,29]. For composite systems made with organic matrix, the experimental tests confirm a linear trend [15] as accepted in the modern building codes and guidelines. The stress-strain constitutive relationship can be easily homogenized [11], meaning that the global behavior of two constituents of the composite is attributed to fibers only, by using equivalent properties.…”

Section: Mechanical Model Of Compositementioning

confidence: 51%

“…For strengthening systems made of inorganic matrix and basalt fiber, the experimental results confirm the linear and the bi-linear trends [15,18]. Instead, when natural hemp fiber replaces the synthetic fiber, the experimental results confirm the bi-linear and tri-linear trends [28,29].…”

Section: Mechanical Model Of Compositementioning

confidence: 73%

“…In particular for brittle materials (e.g masonry) the strengthening strategy must be performed improving also the ductility capacity [3]. However, many of the available models both in the literature and in the building codes are not able to accurately account for the behavior of strengthening systems on the capacity of strengthened elements [15]. In particular, they provide reliable results for composite based on organic matrix (i.e.…”

Section: Introductionmentioning

confidence: 99%

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Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ramaglia¹,

Fabbrocino²,

Lignola³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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Models able to assess the effects of composite strengthening on masonry structures are worthy of further developments. This is also evident in modern design codes and guidelines where, for the masonry, there is lack of well-established approaches. In fact, most of the strengthening applications on masonry structures are designed based on suggestions by the manufacturers, missing strict and clear calculations. Such an approach leads, very often, to the execution of large and therefore economically demanding strengthening systems, also not encouraging their diffusion. Furthermore, the use of excessive strengthening often involves an excessive, and above all involuntary, reduction of ductility capacity. It needs also further investigation the impact of peculiar behaviors of composites (e.g. up to trilinear stress strain behavior for FRCM) on the flexural response of masonry. In this paper the behavior of strengthened masonry members is analyzed accounting for the variability of mechanical characteristics of both masonry and the strengthening systems. The behavior of the members is analyzed in terms of the moment-curvature relationships. This approach allows to evaluate both the flexural capacity and the ductility capacity of the strengthened masonry sections. In fact, the ductility is a key aspect in the retrofit of masonry structures. Finally, the process of adimensionalization, allows to extend the results to any case, providing a useful tool not only for verification but also for the design of interventions.

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Section: Mechanical Model Of Compositementioning

confidence: 51%

Section: Mechanical Model Of Compositementioning

confidence: 73%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ramaglia¹,

Fabbrocino²,

Lignola³

et al. 2019

Proceedings of the 7th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering (COM

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“…Kevlar Fabric. One of the materials used in the experimental test was Kevlar woven fabric whose mechanical properties are dependent on the geometry of yarn and the thickness of the layer [16]. It is possible to classify the fabrics used in the ballistic applications as knitted and woven fabrics.…”

Section: Fiber-cementmentioning

confidence: 99%

Simulation and Experimental Tests of Ballistic Impact on Composite Laminate Armor

Soydan

Tunaboylu

Elsabagh

et al. 2018

Advances in Materials Science and Engineering

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is paper presents the experimental testing and simulation results of ballistic impact tests on laminated armor samples that consist of three layers of different materials: fiber-cement, Kevlar fabric, and steel. In experimental tests, a 9 mm FMJ bullet was launched towards a 100 cm 2 sample of the armor from the fiber-cement side. Ansys Workbench Explicit Dynamics and Ansys AUTODYN 3D were used to model and simulate the ballistic impact. Experimental testing and simulation results were compared to analyze the behavior of composite armor designs, and a good agreement was observed.

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“…The spacing between the yarns may vary and is higher than 30 mm. The cross-sectional area of the laminated and pultruded elements is often higher than that of textile-reinforced mortars' fiber textile yarns (Carozzi et al 2017;D'Antino et al 2019).…”

Section: Introductionmentioning

confidence: 99%

Strengthening of Different Types of Slabs with Composite-Reinforced Mortars (CRM)

D’Antino

Calabrese

Poggi

et al. 2019

Buildings for Education

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A great number of buildings built in Europe in the second half of the last century are currently in need of strengthening and retrofitting. One of the more frequent issues is the weakness of the slabs and, in particular, of the intrados covering layer (usually a plaster) and/or of the clay non-structural elements employed to decrease the overall slab weight. The application of composite-reinforced mortar (CRM) systems represents a fast and easy solution to address these weaknesses. Therefore, they are particularly attractive for applications in school buildings, to avoid long interruptions of the educational activities. In this paper, the use of CRM to strengthen different types of slabs is described and discussed on the basis of the results obtained from an experimental campaign conducted at the Politecnico di Milano.

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Experimental investigation of tensile and bond properties of Carbon-FRCM composites for strengthening masonry elements

Cited by 236 publications

References 35 publications

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Ductility Capacity Assessment of Masonry Members Strengthened With Composites

Simulation and Experimental Tests of Ballistic Impact on Composite Laminate Armor

Strengthening of Different Types of Slabs with Composite-Reinforced Mortars (CRM)

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