... to study the creep failure behavior of the notched structures for the safe operation of the system. In this work, creep tests of the simulated steam turbine component have been conducted at the temperature of 605 °C, and the creep-damage constitutive equation is used to track the evolution behavior...

...Hyeong-Yeon Lee; Jong-Bum Kim; Hong-Yune Park High temperature design and evaluation of creep-fatigue damage for sodium-to-sodium heat exchanger, decay heat exchanger (DHX), in a sodium test loop have been conducted. The DHX is a shell- and tube-type heat exchanger with an outer diameter of 21.7 mm...

... temperature up to 950 ° C . An evaluation of creep-fatigue damage, for a prototype PHE, has been carried out from finite element analysis with the full three dimensional model of the PHE. The inlet temperature in the primary side of the PHE was 950 ° C with an internal pressure of 7 MPa, while the inlet...

...Hyeong-Yeon Lee; Kee-Nam Song; Yong-Wan Kim Evaluation of creep-fatigue damage has been carried out for the hot gas duct (HGD) structure in the nuclear hydrogen development and demonstration (NHDD) plant. The core outlet and inlet temperature of the NHDD plant are 950 ° C and 490 ° C , respectively...

... a computation method that can be used to estimate the working life consumption of a steam turbine rotor. In the method, creep and low cycle material damage were considered. The calculations are based on the Palmgren–Miner hypothesis of linear damage accumulation. The computation was done utilizing the Microsoft...

... for testing pressure vessels with acoustic emission at temperature. 25 04 2008 12 07 2008 24 07 2009 acoustic emission testing filled polymers pressure vessels fiber reinforced polymers acoustic emission elevated temperature damage pressure vessels felicity ratio...

.... These materials exhibit the same deformation sequence: normally uniform elongation followed by diffuse necking, then localized necking in the form of crossed intense-shear bands, and finally fracture. The difference among these alloys lies primarily with respect to the point at which damage (i.e., voiding) starts...

... temperature damage pressure vessels Felicity ratio Composite materials have the advantages of light weight, high strength, and good durability. These properties make them widely used in the piping and pressure vessel industries which often need to be exposed to adverse environments. Testing of FRP...

... as the internal liner cracked, water forced its way through the layers of the fiber winding and found its way to the surface. On the inside surface of the specimens, a single longitudinal crack was visible immediately under the failure surface of the specimen. No other signs of damage were visible on the inside...