The purpose of this study is to investigate the behavior of tube-shaped TRC ductility experimentally via monotonic loading. Ar-Glass and PVA as textile materials are used in the production of composite tube parts. These parts were tested in four and six layers and in different thicknesses. As a result of the mortar thickness, textile layers play the major role in ductility and strength. As the tube thickness increases, the strength increases, but the ductility decreases. However, ductility increases as the tube thickness decreases and the energy absorption increase by making the parts more flexible. This paper analyzes how much ductile the 10 cm long tube can be under pressure and tensile forces. The use of different textile materials, different thicknesses, and different numbers of textile layers has been examined. According to the test results, it is concluded that cylindrical tube shaped units produced by using PVA fabric material is more ductile than units produced by using Ar-Glass fabric material. Also, with the wall or slab elements or pipeline obtained by using these units, the structure system can be strengthened against earthquake loads.
This paper presents experimental studies and detailed micro-modeling on test setups to determine the strength and failure mechanism of brick masonry components. Experimental studies include compressive strength tests of masonry units, Red Clay brick masonry triplet tests, and Z-shaped flexural bond tests. Failure mechanism for masonry relates not only to mortar and brick material properties, but also to the bond strength between the brick and mortar. A contact law based on Cohesive Zone Model and Coulomb's law was used to describe the fracture behavior of mortar joints. Numerical studies are based on the interface cohesive model for mixed modes I and II. Tests were evaluated numerically using the Benzeggagh-Kenane mixed mode criterion. The results obtained from the FE simulation showed the reliability of computational modeling approaches for masonry bed joint behavior. Finally, a parametric study on masonry triplet tested under various compression stresses was performed by using the FE simulation. The results indicate the increase of normal compression stress leads to an increase in shear bond strength of masonry.
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