Examinando por Autor "Ayala Pineda, Danny Alexander"
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- ÍtemAnálisis de falla en elementos mecánicos de sujeciónDíaz Cortés, Camila Lorena; Yazo Salgado, Oswaldo Enrique; Ayala Pineda, Danny Alexander; Cendales Ladino, Edwin DaríoIn the present study, the failure analysis was carried out on two (2) elements of daily application such as fastening bolts. The first bolt had fracture in the stem in the area without thread, the second bolt was found with fracture in the thread area. The objective of the study is to determine the mode of failure present in each of the bolts analyzed. Through the realization of visual analysis, metallographic analysis and hardness tests, with equipment available at the Universidad del Libertadores, characteristics of the material were identified and characteristic marks of typical faults present in the fracture zone of the samples were evidenced. it was possible to determine the failure mode that caused the breaking of the elements. It was found that the failure mode in the first bolt was fragile to torsion fracture, produced by high work cycles, evidencing little plastic deformation, multiple crack start-end options, surface failure with rough areas, nucleations and high hardness. The second failure bolt was a *ductile bending fracture* produced by punctual overloads, evidencing high plastic deformation, defined beach markings, failure surface with flat areas, little rough and a medium hardness. (Apartes del texto)