Metoda DIC

• Autorzy: Marcinczak Dorota

Warianty tytułu

EN

DIC (digital image correlation) method in the research of RC beams strengthened with PBO-FRCM materials

• Języki publikacji: PL

Abstrakty

EN

The article presents tests of a reinforced concrete beam strengthened in a shear with PBO-FRCM composite materials. Measurement of the deformation of the composite was carried out using two methods - with strain gauges and the optical DIC method (Digital Image Correlation). The DIC method consists in taking a series of photographs of the tested object before and during loading. The surface of the tested element must have randomly spaced spots that are applied to the object before measurement. During the study, the cameras monitor the shifting of spots against each other, which in comparison to the reference image before loading gives information about strains and stresses of the tested element. Measurements of deformation of composite materials using strain gauges are difficult to clearly analyze, because the strain gauge is in a specific, limited place, which does not correspond to the work of the entire composite. In addition, the strain gauge tends to break at the place of crack. The article discusses this problem by presenting the results of deformation of PBO-FRCM composite meshes measured in two mentioned ways, their comparison and discussion of results.

Słowa kluczowe

PL

belka; ścinanie; kompozyt; metodyka pomiaru; korelacja obrazu cyfrowa; mechanizm zniszczenia; odkształcenie; PBO-FRCM

EN

beam; shear; composite; measurement methodology; digital image correlation; DIC; destruction mechanism; deformation; PBO-FRCM

• Wydawca: BUILDER CORP Sp. z o.o.
• Czasopismo: Builder
• Rocznik: 2019
• Tom: R.23, nr 2
• Strony: 66--68
• Opis fizyczny: Bibliogr. 7 poz., il.

Twórcy

autor

Marcinczak Dorota

• Wydział Budownictwa Lądowego i Wodnego, Politechnika Wrocławska

Bibliografia

• [1] Loreto G., Babaeidaarabad S., Leardini L., Nanni A., RC beams shear-strengthened with fabric-reinforced-cementitious-matrix (FRCM) composite, “International Journal of Advanced Structural Engineering”, 7(4), 2015, p. 341-352.
• [2] Tetta Z.C., Koutas L.N., Bournas D.A., Shear strengthening of full-scale RC T-beams using textile-reinforced mortar and textile-based anchors, Composites: Part B, 95, 2016, p. 225-239.
• [3] Trapko T., Urbańska D., Kamiński M., Shear strengthening of reinforced concrete beams with PBO-FRCM composites, Composites: Part B, 80, 2015, p. 63-72.
• [4] Trapko T., Musiał M., PBO mesh mobilization via different ways of anchoring PBO-FRCM reinforcements, Composites: Part B, 118, 2017, p. 67-74.
• [5] Ombers L., Concrete confinement with a cement based high strength composite material, “Compos Struct” 2014;109:294-304.
• [6] Trapko T., Fibre Reinforced Cementitious Matrix confined concrete elements, “Mater Design”, 2013;44:382-391.
• [7] Szymczak T., Grzywna P., Kowalewski Z., Nowoczesne metody określania wytrzymałościowych właściwości materiałów konstrukcyjnych, „Transport samochodowy”, nr 1, 2013.

Uwagi

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019).