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Pseudo-Ductile 3d Printed Fiber Reinforced Polymer Composites, Shreya Vemuganti
Pseudo-Ductile 3d Printed Fiber Reinforced Polymer Composites, Shreya Vemuganti
Civil Engineering ETDs
The use of fiber-reinforced polymer (FRP) composite materials is continuously growing in civil infrastructure owing to its high strength, low weight, and manufacturing flexibility. However, FRP is characterized by sudden failure and lacks ductility. When used in construction, gradual failure of FRP components is desired to avoid catastrophic structural collapse. Due to its mechanical orthotropy, the behavior of FRP relies significantly on fiber orientation and stacking sequence. In this research proposal, investigations showed that novel multi-angled glass fiber reinforced polymer (GFRP) composites with varying fiber orientation angles, stacking sequence, and thickness of laminas can be designed and fabricated using 3D …
Synthesis & Characterization Of Polymer-Modified Calcium Silicate Hydrate For Wellbore Applications, Jeremy J. Starr
Synthesis & Characterization Of Polymer-Modified Calcium Silicate Hydrate For Wellbore Applications, Jeremy J. Starr
Civil Engineering ETDs
Calcium Silicate Hydrate (C-S-H) acts as the primary binding material that is mainly responsible for the strength and durability of concrete. C-S-H constitutes approximately 67% of hydrated ordinary Portland cement by volume. C-S-H forms with a range of stoichiometric formula dependent on many factors such as CaO/SiO2 ratio. The continued rise of hydrocarbon exploration in the United States has developed the need for improved wellbore cementing materials. Binders with good bond strength to steel and rock interfaces, low shrinkage, and high cracking strength are sought by the oil and gas industry. The incorporation polymers and nano materials has evolved …