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Repair Welding Effects on the Bending Fatigue Strength of AISI 4130 Aeronautical Steel used in a Critical to the Flight-Safety Structure
(Trans Tech Publications Ltd, 2010-01-01)
The aim of this study was to analyze the effect of successive TIG (tungsten inert gas) welding repairs on the reverse bending fatigue strength of AISI 4130 steel, which is widely used in components critical to the ...
Estrutura de guildas de polinizacao de Solanum aculeatissimum Jacq. e S. variabile Mart. (Solanaceae)
(1997-12-01)
Some aspects of the reproductive biology of Solanum aculeatissimum and S. variabile (Solanaceae) were considered in this study with special reference to floral visitants and their behavior. The most frequent Solanum visitors ...
Active flutter suppression in a 2-D airfoil using linear matrix inequalities techniques
(2006-01-01)
Flutter is an in-flight vibration of flexible structures caused by energy in the airstream absorbed by the lifting surface. This aeroelastic phenomenon is a problem of considerable interest in the aeronautic industry, ...