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S13 Integridade Estrutural |
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Titulo:
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PROBLEMAS ENCONTRADOS NA APLICAÇÃO DO MODELO FRAMTIC A UM AÇO MICROLIGADO AO TI-NB
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Resumo :
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ABSTRACT. THE PURPOSE OF THIS PAPER IS TO PRESENT THE PROBLEMS FACED WHEN TRYING TO APPLY A MODEL DEVELOPED FOR THE FRACTURE TOUGHNESS CHARACTERIZATION IN THE TRANSITION TO PREDICT THE FRACTURE BEHAVIOR OF A API 5L X65 STEEL, MICROALLOYED TO TI E TO NB. THE PROBLEMS AROSE DUE TO THE APPEARANCE OF SPLITS CAUSED BY MICROSTRUCTURAL BANDING IN THE CROSS SECTIONAL AREA OF SPECIMENS SUBJECTED TO CHARPY IMPACT TESTING, LEADING TO AN APPARENT INCREASE IN THE MATERIAL FRACTURE TOUGHNESS. THE CORRECTIVE ACTIONS ARE ALSO DISCUSSED IN THIS WORK.
KEYWORDS: FRACTURE MECHANICS, STRUCTURAL INTEGRITY, DUCTILE-TO-BRITTLE TRANSITION REGION
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Autores :
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DeAquino, Carlos Tasso Eira
Ferreira, Itamar 0
Guimarães, Valdir Alves
Sant Anna, Pedro Carneiro
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Trabalho Completo :
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