Luis Mateus | Universidad de los Andes (Colombia) (original) (raw)
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Papers by Luis Mateus
Revista de Ingeniería
El volumen de producción de la cadena siderúrgica colombiana es ínfimo comparado con el de los gr... more El volumen de producción de la cadena siderúrgica colombiana es ínfimo comparado con el de los grandes productores a nivel mundial, incluidos algunos países de la región como Brasil, México, Argentina y Venezuela. Sin embargo la producción del sector siderúrgico nacional representa un soporte importante para la industria colombiana, ya que unido al metalmecánico constituyen el 16 % del Producto Interno Bruto PIB, además del aporte a la generación de empleo y a otros sectores vitales para el país como el de la construcción. Este artículo presenta un análisis del comportamiento del sector siderúrgico nacional en cuanto a la demanda, el tamaño de su producción e importaciones para el periodo comprendido entre los años 2000 a 2003 y la capacidad de sus empresas.
Revista de Ingeniería, 1994
In this work, the root causes that generated longitudinal cracks on the internal wall of liners o... more In this work, the root causes that generated longitudinal cracks on the internal wall of liners on a V12 turbocharged diesel engine, used for oil pumping, are presented. During a maintenance inspection of the engine, a water leak was discovered inside of engine's liner. Laboratory analysis revealed that the internal surface of the liner displayed cavities near the top dead center, which ended in both stress concentration and crack nucleation.
Engineering Failure Analysis, 2009
This work presents the conclusions of a failure analysis performed on a V12 Turbo Charged diesel ... more This work presents the conclusions of a failure analysis performed on a V12 Turbo Charged diesel engine cylinder sleeve. The failure analysis carried out established the most relevant factors that caused damage to the cylinder sleeve. An examination of the internal surface of the cylinder sleeve revealed an elevated number of cavities close to the top center area, which acted as stress concentrators reducing the resistance of the component, creating crack nucleation spots. Additionally there were internal differences in the microstructure of the component, which indicate that different cooling conditions occurred during its manufacture, providing a secondary failure mechanism, due to material fragility.
Revista de Ingeniería
El volumen de producción de la cadena siderúrgica colombiana es ínfimo comparado con el de los gr... more El volumen de producción de la cadena siderúrgica colombiana es ínfimo comparado con el de los grandes productores a nivel mundial, incluidos algunos países de la región como Brasil, México, Argentina y Venezuela. Sin embargo la producción del sector siderúrgico nacional representa un soporte importante para la industria colombiana, ya que unido al metalmecánico constituyen el 16 % del Producto Interno Bruto PIB, además del aporte a la generación de empleo y a otros sectores vitales para el país como el de la construcción. Este artículo presenta un análisis del comportamiento del sector siderúrgico nacional en cuanto a la demanda, el tamaño de su producción e importaciones para el periodo comprendido entre los años 2000 a 2003 y la capacidad de sus empresas.
Revista de Ingeniería, 1994
In this work, the root causes that generated longitudinal cracks on the internal wall of liners o... more In this work, the root causes that generated longitudinal cracks on the internal wall of liners on a V12 turbocharged diesel engine, used for oil pumping, are presented. During a maintenance inspection of the engine, a water leak was discovered inside of engine's liner. Laboratory analysis revealed that the internal surface of the liner displayed cavities near the top dead center, which ended in both stress concentration and crack nucleation.
Engineering Failure Analysis, 2009
This work presents the conclusions of a failure analysis performed on a V12 Turbo Charged diesel ... more This work presents the conclusions of a failure analysis performed on a V12 Turbo Charged diesel engine cylinder sleeve. The failure analysis carried out established the most relevant factors that caused damage to the cylinder sleeve. An examination of the internal surface of the cylinder sleeve revealed an elevated number of cavities close to the top center area, which acted as stress concentrators reducing the resistance of the component, creating crack nucleation spots. Additionally there were internal differences in the microstructure of the component, which indicate that different cooling conditions occurred during its manufacture, providing a secondary failure mechanism, due to material fragility.