Pressure vessels, such as hydraulic cylinders, are one of the typical examples for the application of structural integrity concepts based on fracture mechanics. The mechanical and fracture mechanics properties affect the failure mode and safety in case of hydraulic cylinders operating in external adverse conditions. For this purpose an experimental plan was set up, the materials being characterized in terms of fracture mechanics properties at room and low temperature, mechanical properties and full scale validation. This latter was carried out on tubes containing defects with different depths. In this paper, an engineering critical assessment based on FITNET procedure is presented. In particular the behavior of different steel grades and load conditions has been investigated in the light of FITNET procedure.
Structural integrity assessment validation of seamless tubes for hydraulic cylinders using „fitness for service“ concepts
BERETTA, STEFANO
2010-01-01
Abstract
Pressure vessels, such as hydraulic cylinders, are one of the typical examples for the application of structural integrity concepts based on fracture mechanics. The mechanical and fracture mechanics properties affect the failure mode and safety in case of hydraulic cylinders operating in external adverse conditions. For this purpose an experimental plan was set up, the materials being characterized in terms of fracture mechanics properties at room and low temperature, mechanical properties and full scale validation. This latter was carried out on tubes containing defects with different depths. In this paper, an engineering critical assessment based on FITNET procedure is presented. In particular the behavior of different steel grades and load conditions has been investigated in the light of FITNET procedure.File | Dimensione | Formato | |
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