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Effect of ion exchange on strength and slow crack growth of a dental porcelain
(ELSEVIER SCI LTD, 2009)
Objectives. To determine the effect of ion exchange on slow crack growth (SCG) parameters (n, stress corrosion susceptibility coefficient, and sigma(f0), scaling parameter) and Weibull parameters (m, Weibull modulus, and ...
The roles of microstructure and surface energy on subcritical crack growth in glass-ceramics
(2021-03-01)
This study aimed to investigate the microstructure, failure probabilities, the susceptibility to subcritical crack growth (SCG), and the surface energy of two comercial brands IPS E.max CAD, Ivoclar Vivadent (LD-C) and ...
Initiation and growth of short cracks during cycling in an aged superduplex stainless steel
(Trans Tech Publications, 2011-08)
The kinetics of short crack growth during cycling has been studied in a superduplex stainless steel in aged condition. After few cycles, slip lines appear distributed in both phases but the preferred phase for microcrack ...
Resistência à fadiga de junta circunferencial de um tubo API 5L x 70 em contato com etanol
(Universidade Federal de São CarlosUFSCarPrograma de Pós-Graduação em Ciência e Engenharia de Materiais - PPGCEMCâmpus São Carlos, 2016-09-19)
Circumferential field-welding joints of oil pipelines are susceptible to defects that may lead to failures when in operation. The type of product to be transported is an important factor in the evaluation of environment-induced ...
Avaliação da propagação de trinca por fadiga em soldas subaquáticas molhadas
(Universidade Federal de Minas GeraisUFMG, 2017-03-10)
The characteristic of fatigue cracks propagation of welds produced in underwater wet welding were evaluated out of water. Butt welds produced in a hyperbaric chamber at simulated depths of 10, 60 and 90m. A gravity welding ...
Prediction of fatigue life for a transverse fillet welded joint and analysis of the influence of crack eccentricity on the failure
(Universidad Nacional de Colombia Sede Medellín, 2013)
In this paper a procedure based on the Finite Element Method and Linear Elastic Fracture Mechanics to obtain a mathematical model of crack propagation in transverse fillet welded joints is presented. We used ASTM-A36 steel ...