... Abstract The design of liquid hydrogen tanks requires a thorough understanding of the factors influencing fatigue crack initiation and propagation at cryogenic temperatures in materials used in hydrogen environments. To gain a more precise understanding of the impact of hydrogen on the fatigue...

...: Ageing components; ageing structures; AISI 4340 steel; brittle fracture; ceramics; chemical processing plant; coreliability; co-reliability-target; component co-reliability; crack growth rate; crack initiation; crack propagation; cracked pipe; failure probability; fatigue; fracture mechanics; gas...

... component co-reliability crack growth rate crack initiation crack propagation cracked pipe failure probability fatigue modeling fracture mechanics gas pipeline inspection interval minimum time to failure multi-scale modeling NDE nondestructive evaluation oil pipeline piping POD powerplant...

... with light optical and scanning electron microscopy to correlate crack nucleation and propagation to susceptible microstructural constituents. thermo-mechanical simulation crack initiation Cr/Ni content thermal fatigue EVALUATION OF SUSCEPTIBILITY TO THERMAL FATIGUE CRACKING IN HIGH TEMPERATURE...

... Abstract A design for flaw placement in a full-scale pipe test was developed to both detect crack initiation and measure crack growth rate upon internal pressurization of a pipe exposed to a sulfide stress cracking (SSC) environment. The objective of this work was to model different sizes...

... and normalized strain by each critical value corresponding to crack initiation were independent of stress-strain relationship of material and stress triaxiality state. Based on this characteristic associated with void growth, damage evolution law representing nonlinear damage accumulation was derived...

... growth exponent crack initiation crack propagation NDE nondestructive evaluation failure prevention fatigue modeling finite element method fracture mechanics inspection interval mathematical modeling piping precision structural integrity assessment pressure vessel PYTHON SHM statistical...

... Changes in the surface roughness of SUS316NG during cyclic loadings were investigated, and the relations between those changes and the crack initiation and propagation processes are discussed on the basis of microscopic observations and cellulose acetate replica observations. Strain-controlled...

... Aging structures ANLAP artificial intelligence crack initiation crack propagation DATAPLOT design of experiments failure event database fatigue flaw detection fracture mechanics information extraction inservice inspection life extension material property database mathematical...

... of the buttering, parallel to the buttering/ferritic interface (at a distance of 2mm). The test was conducted under displacement control and the partial unloading method was used to control the defect initiation and propagation. Crack initiation occurred at a relatively low bending moment but a long stable...

... 21 07 2008 Thermal fatigue sometimes occurs in different types of nuclear reactor components. To estimate the crack initiation damage, uniaxial fatigue curves are often used. They were deduced from strain control tests using normalised cylindrical specimens. However, for in-service...