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S24 Mecânica dos Sólidos |
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Titulo:
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ANALYSIS OF RESIDUAL STRESSES INDUCED IN A MECHANICAL COMPONENT
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Resumo :
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THIS REPORT PRESENTS AN INVESTIGATION ABOUT THE EMPLOYMENT OF RESIDUAL STRESSES ON THE MECHANICAL COMPONENTS DESIGN AIMING TO IMPROVE THEIR PERFORMANCE AND FATIGUE LIFE. A RESIDUAL STRESS FIELD HAS BEEN INDUCED IN SPECIMENS OF SAE 4340 STEEL THROUGH CONTROLLED TENSION TESTS. FEM ANALYSIS HAS BEEN PERFORMED TO EVALUATE THE STRESS FIELD GENERATED AND THE RESULTS WERE COMPARED WITH THE DATA OBTAINED FROM EXPERIMENTAL TESTS. THE HOLE METHOD TEST HAS BEEN USED FOR THE RESIDUAL STRESS MEASUREMENT. THE RESULTS SHOW THAT RESIDUAL STRESSES INDUCED BY AN OVERLOAD INCREASE THE PERFORMANCE OF MECHANICAL COMPONENTS.
KEY WORDS: RESIDUAL STRESS, HOLE METHOD, FINITE ELEMENTS.
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Autores :
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Pinto, Rosa Irene Terra
Roldo, Liane 0
Strohaecker, Telmo Roberto
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Trabalho Completo :
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