Design and construction of a torsional fatigue testing machine operated by inertial loads

In this paper the development of a torsional fatigue testing machine for metallic materials is presented. This machine is considered type I according to the Weibull classification because the fatigue failure is caused by a load of inertial origin. The machine operation is based on the alternating mo...

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Detalhes bibliográficos
Autores: Peña Bustos, Fabio Marcela, Álvarez Vargas, César Augusto
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2012
País:Colombia
Recursos:Universidad Nacional de Colombia
Repositorio:Repositorio UN
Idioma:español
OAI Identifier:oai:repositorio.unal.edu.co:unal/40653
Acesso em linha:https://repositorio.unal.edu.co/handle/unal/40653
http://bdigital.unal.edu.co/30750/
Access Level:acceso abierto
Palavra-chave:Fatigue
torsional fatigue testing machine
inertial loads
Descrição
Resumo:In this paper the development of a torsional fatigue testing machine for metallic materials is presented. This machine is considered type I according to the Weibull classification because the fatigue failure is caused by a load of inertial origin. The machine operation is based on the alternating movement that the transmission of a washing machine produces. The inertial load is caused by a flywheel located at the top of the machine. Unlike many machines that generate fatigue-alternating stresses through relocation or the rotation of the specimen on loads that are consistent across time, the design of the machine clearly shows how inertial loads due to the acceleration of the mechanical elements generated loads of alternating character which eventually causes fatigue failures.