Additive manufacturing (AM) is one of the fastest-growing technologies in modern times. One major challenges application 3D-printed polymeric objects expanding applications to structural components, as they are often limited by their mechanical and thermal properties. To enhance properties thermoset polymer objects, reinforcing with continuous carbon fiber (CF) tow an direction research development. A 3D printer was constructed capable printing a CF-reinforced dual curable resin system....

Exposure of dentin tubules due to loss protective enamel (crown) and cementum (root) tissues as a result erosion, mechanical wear, gingival recession, etc. has been the leading causes hypersensitivity. Despite being widespread ailment, no permanent solution exists address this oral condition. Current treatments are designed alleviate pain by either using desensitizers or blocking deposition minerals solid precipitates, which often have short-lived effects. Reproducing an integrated mineral...

Continuous carbon fiber-reinforced (CCFR) thermoset composites have received significant attention due to their excellent mechanical and thermal properties. The implementation of 3D printing introduces cost-effectiveness design flexibility into manufacturing processes. light-assisted process shows promise for CCFR using low-viscosity resin, which would otherwise be unprintable. Because the lack shape-retaining capability, various shapes is challenging with resin. This study demonstrated an...

Shear thickening fluids (STFs) have been shown to improve the effectiveness of fabrics used in soft body armor applications. They are increase puncture and ballistic impact resistance Kevlar® fabrics. However, effect using STFs with natural such as flax appears never studied. Similarly, hybridization different fabric types impregnated STF has also only undergone limited study. The rheology at varying concentrations nanosilica dispersed polyethylene glycol (PEG) was studied temperatures. It...

Abstract Continuous carbon fiber (CCF) reinforcement has garnered significant attention in 3D printing due to its ability impart exceptional mechanical performance characteristics polymer composites. Light-assisted of thermoset resin with CCF enables the scalable production complex structures using additive manufacturing. However, opaqueness poses challenges curing process resins during reinforcement. Therefore, knowledge on minimum light energy required continue while retaining desired...

Abstract Continuous fiber reinforced epoxy-based thermosets have been abundantly used in various applications, ranging from aerospace to ground transportation, over the past decades due their superior strength, stiffness, lightweight, thermal stability, and chemical resistance. Conventional manufacturing of composites uses expensive molding tools for resin fibers shaping, necessitating mass production manage costs. In contrast, 3D printing, ideal rapid prototyping product development, allows...

Abstract Light assisted 3D printing of continuous carbon fiber reinforced thermoset composites has gained attention due to their ability print with low-viscosity resin. Void formation during the thermosets poses a challenge improving mechanical strength printed composites. The primary objective this study is characterize voids present within and define influence on fracture or crack propagation. This conducted using light-assisted process. Micro-CT analysis was performed obtain information...

Reinforcing thermoset polymers with continuous carbon fiber (CF) tow has emerged as a promising avenue to overcome the thermal and mechanical performance limitations of 3D printed polymeric structures for load-bearing applications. Unlike traditional methods, manufacturing fiber-reinforced composites by printing unique capability locally varying properties composites. In this study, CF composite specimens were line spacing, resin flow rate, nozzle sizes. The rates different spacings sizes...

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Continuous fiber reinforced additive manufacturing has been growing in research and commercial application. In this work, additively manufactured carbon thermoset composites are being produced utilizing a liquid deposition modeling process with photo-curable resin. The quality mechanical properties of is sensitive to the void concentration distribution. percentage had shown correlation surface individual layers. Research found that layers could be controlled by parameter adjustments such as...

Program from the Annual Meeting of American Radium Society: PAPERS: Wednesday, May 1, 2002: 10: 15 – 11: 10 AM GU/PROSTATE