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Search Results (3)

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Keywords = Textile Reinforced Cement (TRC), sandwich panel

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19 pages, 6472 KB  
Article
Fatigue Behaviour of Textile Reinforced Cementitious Composites and Their Application in Sandwich Elements
by Matthias De Munck, Tine Tysmans, Jan Wastiels, Panagiotis Kapsalis, Jolien Vervloet, Michael El Kadi and Olivier Remy
Appl. Sci. 2019, 9(7), 1293; https://doi.org/10.3390/app9071293 - 28 Mar 2019
Cited by 21 | Viewed by 4878
Abstract
Using large lightweight insulating sandwich panels with cement composite faces offers great possibilities for the renovation of existing dwellings. During their lifetime, these panels are subjected to wind loading, which is equivalent to a repeated loading. To guarantee the structural performance of these [...] Read more.
Using large lightweight insulating sandwich panels with cement composite faces offers great possibilities for the renovation of existing dwellings. During their lifetime, these panels are subjected to wind loading, which is equivalent to a repeated loading. To guarantee the structural performance of these panels during their entire lifetime, it is necessary to quantify the impact of these loading conditions on the long term. The fatigue behaviour was, therefore, examined in this paper both at the material level of the faces and at the element level as well. plain textile reinforced cementitious composite (TRC) specimens were subjected to 100,000 loading cycles by means of a uniaxial tensile test, while sandwich beams were loaded 100.000 times with a four-point bending test. Results show that the residual behaviour is strongly dependent on the occurrence of cracks. The formation of cracks leads to a reduction of the initial stiffness. The ultimate strength is only affected in a minor way by the preloading history. Full article
(This article belongs to the Special Issue Textile Reinforced Cement Composites: New Insights in Structural and Material Engineering)
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16 pages, 11409 KB  
Article
Validation of a Numerical Bending Model for Sandwich Beams with Textile-Reinforced Cement Faces by Means of Digital Image Correlation
by Jolien Vervloet, Tine Tysmans, Michael El Kadi, Matthias De Munck, Panagiotis Kapsalis, Petra Van Itterbeeck, Jan Wastiels and Danny Van Hemelrijck
Appl. Sci. 2019, 9(6), 1253; https://doi.org/10.3390/app9061253 - 25 Mar 2019
Cited by 28 | Viewed by 5030
Abstract
Sandwich panels with textile-reinforced cement (TRC) faces merge both structural and insulating performance into one lightweight construction element. To design with sandwich panels, predictive numerical models need to be thoroughly validated, in order to use them with high confidence and reliability. Numerical bending [...] Read more.
Sandwich panels with textile-reinforced cement (TRC) faces merge both structural and insulating performance into one lightweight construction element. To design with sandwich panels, predictive numerical models need to be thoroughly validated, in order to use them with high confidence and reliability. Numerical bending models established in literature have been validated by means of local displacement measurements, but are missing a full surface strain validation. Therefore, four-point bending tests monitored by a digital image correlation system were compared with a numerical bending model, leading to a thorough validation of that numerical model. Monitoring with a digital image correlation (DIC) system gave a highly detailed image of behaviour during bending and the strains in the different materials of the sandwich panel. The measured strains validated the numerical model predictions of, amongst others, the multiple cracking of the TRC tensile face and the shear deformation of the core. Full article
(This article belongs to the Special Issue Textile Reinforced Cement Composites: New Insights in Structural and Material Engineering)
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6 pages, 863 KB  
Proceeding Paper
Characterization of the Bond between Textile Reinforced Cement and Extruded Polystyrene by Shear Tests
by Jolien Vervloet, Panagiotis Kapsalis, Svetlana Verbruggen, Michael El Kadi, Matthias De Munck and Tine Tysmans
Proceedings 2018, 2(8), 419; https://doi.org/10.3390/ICEM18-05275 - 27 May 2018
Cited by 4 | Viewed by 2155
Abstract
Loadbearing sandwich panels used as wall elements are a promising development since they combine structural and energy efficiency. Composite behaviour needs to be ensured so that the sandwich panel works as one element under a flexural load (meaning that the shear forces due [...] Read more.
Loadbearing sandwich panels used as wall elements are a promising development since they combine structural and energy efficiency. Composite behaviour needs to be ensured so that the sandwich panel works as one element under a flexural load (meaning that the shear forces due to bending are transferred from one face to the other). To assure this full composite behaviour, an investigation of the bond strength between the faces and the core of the sandwich panel is necessary. Therefore, two different bond test set-ups were performed on sandwich panels with Textile Reinforced Cement (TRC) faces and an Extruded Polystyrene (XPS) insulating foam core. The two bond test set-ups were compared and revealed that one of the set-ups showed a combination of bond and shear failure of the core so that a clear conclusion on the bond strength couldn’t be obtained. The second set-up showed clear bond failure and gave a good estimation of the bond strength between TRC and XPS. Full article
(This article belongs to the Proceedings of The 18th International Conference on Experimental Mechanics)
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