CREEM 2019

XXVI Congresso Nacional de Estudantes de Engenharia Mecânica

ANÁLISE DE PROPAGAÇÃO DE TRINCAS POR FADIGA ATRAVÉS DE ENSAIO CTOD EM AÇO LIGA ASTM A516 GR 55 EMPREGADO NA INDÚSTRIA PETROLÍFERA

Submission Author: Joao Santos , SE , Brazil
Co-Authors: Joao Santos, Sandro Griza, Diego Pereira, Antonio Santos, Paulo Franklin Tavares Santos
Presenter: Joao Santos

doi://10.26678/ABCM.CREEM2019.CRE2019-0207

 

Abstract

The present work aims to analyze the fracture toughness and resistance to the propagation of fatigue cracks in steel and ASTM A516 Gr 55 used in the petroleum industry, either in structural elements or for the manufacture of pressure vessels and pipe fittings. The standard BS 7448 -1 guides the execution of tests with the purpose of evaluating mechanical properties that are required for a good behavior in these situations. According to the results, it can be concluded that the studied material presents high resistance to crack propagation from a pre-existing defect, and with the correct employability the use for the construction of mechanical structures and devices submitted to fatigue efforts in operation.

Keywords

Mecânica da Fratura, BS 7448-1, Indústria Petrolífera, Propagação de trincas, ensaio mecânico

 

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