MECHANICAL STRENGTH ANALYSIS OF BOLTS

 comparison of tensile strength, torque, and fatigue resistance among different types of bolts

Abstract

With the present research, the purpose is to demonstrate, through an analytical comparison, the mechanical properties of screws, which are essential fastening items in numerous types of systems, with emphasis on industry. In other words, the objective is to investigate and compare the tensile strength, torque, and fatigue resistance of screws with different properties and different materials, such as carbon steel and stainless steel as pioneers. With a bibliographic review of articles and documents, technical, normative, and experimental analysis data were obtained, providing the ideal basis to critically discuss the influence of the type of material, technical treatment, and application method on the performance of screws, as well as other types of fasteners. In summary, it can be said that the correct choice of a fastener must be directly linked and based on the safety and durability of structures, equipment, among others, a fundamental factor for reducing failures during work, and even occupational accidents. It is therefore reinforced the importance of knowing the technical specifications when choosing a screw, with the purpose of promoting more assertive decisions throughout the entire productive sector.