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    • A Critical Review on Glass Fiber-Reinforced Polymer Bars as Reinforcement in Flexural Members
    Authors: Trupti Amit, Kinjawadekar; Shantharam, Patil; Gopinatha, Nayak;  Advisor: -;  Co-Author: - (2023)

    Since the nineteenth century, reinforced concrete was evolved as a crucial material for construction. This popular composite material is broadly used in different building typologies. However, the decaying of steel rebar due to corrosion is identified as a hindrance that can affect the quality of reinforced concrete structures. In reference to this, the glass fiber-reinforced polymer (GFRP) bar is essential because of corrosion-resistant properties. The researchers performed various tests and numerical analysis to know the response of GFRP-reinforced flexural members in shear and bending. Based on studies over the last decade, this study critically analyzes the response of flexural member reinforced using glass fiber-reinforced polymer (FRP) bars. Understanding the behavior of the F...
    • Assessment of aging of anaerobic digester paddle-mixer material: experimental studies and long-term numerical simulation
    Authors: Spyridon, Psarras; Thomas, Zaragkas; Dimitris, Pegkos;  Advisor: -;  Co-Author: - (2023)

    In this study, experimental tests and numerical simulations (Abaqus) were performed to examine the durability of four impeller materials [steel, polyethylene, polypropylene and glass fiber reinforced polymer (GFRP)] in an anaerobic digester environment. Specimens of these materials were prepared and immersed in a bath containing anaerobic digester liquor while operated at 40 °C for a period of 8 months. Periodically (2, 4, 6 and 8 months) sample specimens were removed from the bath and the tensile strength and elastic modulus were determined.