Creep damage is one of the serious problems for the high temperature industries and computational approach (such as continuum damage mechanics) has been developed and used, complementary to the experimental approach, to assist safe operation. However, there are no ready creep damage constitutive equations to be used for predicting the lifetime for this type of alloy, particularly for low stress...

There is renewed interest in hydrogen as an alternative fuel for aero engines, due to their perceived environmental and performance benefits compared jet fuel. This paper presents a cycle, thermal performance, energy creep life assessment of with fuel, using turbofan engine. The cycle was simulated code developed by the authors that allows be selected input. exergy uses both conservations mass ...

Article history: Received 17 May 2013 Accepted 6 August 2013 Available online 16 August 2013 Creep was studied in Haynes 230, a material candidate for the very high temperature reactor’s intermediate heat exchanger, at 800 C and 900 C. This study focused on the differences between the behavior at the two elevated temperature, and using the microstructure, grain boundary serrations and triple ju...

Background: The short-time creep behavior for a series of biodegradable nanocomposites which is used as implantable device into body is a crucial factor. In the current paper, we aimed to study the effect of bioactive glass nanoparticles (BGn) on creep and creep-recovery behaviors of PLA/PCL blends at different given load and different applied temperatures. Method: A series of biodegradab...