Fatigue failure analysis of washing machine top frame under cyclic loading – an investigative study in mitigating market complaint

Sohail Hasnain; Muhammad  Mansoor Uz Zaman Siddiqui; Adeel Tabassum; Syed Haider Raza Naqvi; Asad A. Naqvi

doi:10.36561/ING.27.10

Autores/as

Sohail Hasnain NED University of Engineering and Technology, Pakistán https://orcid.org/0009-0005-2970-2908
Muhammad Mansoor Uz Zaman Siddiqui University of Engineering and Technology Lahore, Pakistán https://orcid.org/0009-0007-8992-7601
Adeel Tabassum National University of Sciences and Technology, Pakistán https://orcid.org/0009-0006-9375-1090
Syed Haider Raza Naqvi University of Engineering and Technology Lahore, Pakistán https://orcid.org/0009-0000-4565-2043
Asad A. Naqvi NED University of Engineering and Technology, Pakistán https://orcid.org/0000-0001-6290-3115

DOI:

https://doi.org/10.36561/ING.27.10

Palabras clave:

Análisis de elementos finitos, Mecánica de fractura, Comportamiento de fractura, Fatiga, Modelado, Simulaciones, Mediciones de tensión-deformación

Resumen

Este documento de estudio analiza los mecanismos de integridad y falla estructural de los mejores marcos de la lavadora, con el objetivo de mejorar la durabilidad y la confiabilidad del aparato doméstico. Las regiones críticas propensas a la falla de fatiga se identificaron utilizando el software SolidWorks. El análisis del estrés y el análisis de deformación revelaron las áreas propensas a la falla, pero al evaluar los costos asociados con el diseño de nuevos moldes para el diseño modificado y realizar el cálculo de equilibrio, decidimos ir con un enfoque de usar un material alternativo que no causará ningún cambio en el molde existente. Se investigaron policarbonato (PC) con un refuerzo de fibra de vidrio 50% largo para mejorar la resistencia a la fatiga. Se realizó un nuevo marco superior de este material junto con el material de material existente. Las pruebas en una máquina del simulador de puerta demostraron una mejora considerable en la durabilidad, con el marco superior basado en PC demostrando un aumento del 1128% en la resistencia del ciclo sobre la contraparte de ABS. El marco superior compuesto por ABS se rompió después de 297 ciclos y PC con un marco superior de fibra de vidrio de vidrio al 50% que se rompió después de 3697 ciclos. Estos hallazgos resaltan la importancia de la optimización de diseño sistemático y la selección de materiales para asegurar el rendimiento y la seguridad a largo plazo en los marcos superiores de las lavadoras.

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