Ctod Fracture Toughness Fatigue
Mostrando 1-6 de 6 artigos, teses e dissertações.
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1. Guide for Recommended Practices to Perform Crack Tip Opening Displacement Tests in High Strength Low Alloy Steels
Abstract: Fracture mechanics approach is important for all mechanical and civil projects that might involve cracks in metallic materials, and especially for those using welding as a structural joining process. This methodology can enhance not only the design but also the service life of the structures being constructed. This paper includes detailed considera
Soldag. insp.. Publicado em: 2016-09
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2. Microstructure and mechanical properties of two Api steels for iron ore pipelines
This research compares the mechanical behavior of two API steels (X60 and X70) used in the longest pipeline in the world for the conveyance of iron ore. Tensile tests, Charpy impact tests, CTOD tests and fatigue crack growth tests are performed at ambient temperature. Metallographic examination showed a banded microstructure consisting of polygonal ferrite a
Mat. Res.. Publicado em: 27/05/2014
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3. Avaliação da Tenacidade à Fratura e da Resistência à Fadiga de Dois Aços Utilizados em Eixos de Carros Torpedos
Fatigue and fracture of railway shafts are technical problems that have been treated in studies of mechanical behavior of materials. The pugh car shafts fracture during operation causes production losses and high cost to replace them. In this work, it has been studied the fracture toughness through CTOD parameter and the fatigue crack growth da / dNxΔK
Publicado em: 2008
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4. Determination of CTOD C in Fibre Metal Laminates by ASTM and Schwalbe Methods
Fibre Metal Laminates (FMLs) have arisen as a demand of the aeronautical industry to use thin sheets with high resistance to fatigue crack growth, high damage tolerance, corrosion resistance and high specific strength. Considering these requirements, FMLs are an advantageous choice when compared to metal alloys currently used. In order to employ FMLs in airc
Materials Research. Publicado em: 2002-06
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5. Influencia da microestrutura sobre as propriedades mecanicas e resistencia a corrosão de um aço inoxidavel ISO 5832-9 - utilizado na fabricação de implantes ortopedicos
The influence of annealing treatment, performed at temperatures from 600 to 1300 °C, and cold work performed by tensile at 10 and 20%, on the mechanical and corrosion properties of an ISO 5832-9 austenitic stainless steel used for orthopedic implants manufacturing has been studied. Has been performed chemical analysis, optical and scanning electronic micros
Publicado em: 2002
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6. Avaliação da tenacidade à fratura de soldas de alta resistência e baixa liga pelo método da integral-J. / Evaluation of high strength low alloy steel weld metal fracture toughness using the J-integral method.
The influence of the microstructure on the fracture toughness behaviour of two groups of multipass High Strength Low Alloy (HSLA) steel weld metals, presenting different microstructure composition, was evaluated. The weld metals A1/A2 exhibited a microstructure composed by acicular ferrite, allotriomorphic ferrite, Widmanstätten ferrite and microphases, and
Publicado em: 1998