Determination of multiaxial stress rupture criteria for creeping materials: A critical analysis of different approaches
Materials in engineering applications are rarely uniaxially-loaded. In reality, failures under
multiaxial loading has been widely observed in engineering structures. The life prediction of …
multiaxial loading has been widely observed in engineering structures. The life prediction of …
Effects of stress level and stress state on creep ductility: evaluation of different models
The last few decades have witnessed an increasing emphasis on the development of strain-
based approach for predicting the creep life or damage of components operating at elevated …
based approach for predicting the creep life or damage of components operating at elevated …
[HTML][HTML] Requirements for and challenges in developing improved creep ductility-based constitutive models for tempered martensitic CSEF steels
Creep fracture behaviour of tempered martensitic steels is generally governed by the
process of cavity nucleation, growth and coalescence into microcracks. Therefore, creep …
process of cavity nucleation, growth and coalescence into microcracks. Therefore, creep …
[HTML][HTML] Study of the creep cavitation behavior of P91 steel under different stress states and its effect on high-temperature creep properties
K Han, H Ding, X Fan, W Li, Y Lv, Y Feng - Journal of Materials Research …, 2022 - Elsevier
In this study, circumferential U-notches of different depths were machined on a plain
cylindrical creep specimen to simulate different stress states during steam pipe operation …
cylindrical creep specimen to simulate different stress states during steam pipe operation …
[HTML][HTML] Unravelling the effects of ratcheting and constraint on the cyclic behaviour of a martensitic steel under elevated temperature
This work examines important aspects of the high-temperature cyclic visco-plasticity
behaviour, namely the ratcheting (cyclic creep) and constraint effects, under low-cycle …
behaviour, namely the ratcheting (cyclic creep) and constraint effects, under low-cycle …
Remaining lifetime assessment of 141,000-hour service-aged forge 91-pipe 91 steel header welds with novel in-situ digital image correlation
Condition assessment of welded steam components is a crucial activity for safe power plant
operations. In this work, remaining lifetime of a 141,000-hour service-aged large bore girth …
operations. In this work, remaining lifetime of a 141,000-hour service-aged large bore girth …
Representative rupture stress-based parameter for characterizing the intensity of creep fracture constraint effect on creep crack growth rate
Z Kun, T Jian-Ping, W Jian-Feng, W Guo-Zhen… - Engineering Fracture …, 2024 - Elsevier
The introduction of creep fracture constraint parameter offers the possibility of accurately
obtaining the CCG rate for specimens/structures subject to different constraint levels through …
obtaining the CCG rate for specimens/structures subject to different constraint levels through …
Creep crack growth behavior analysis of the 9Cr-1Mo steel by a modified creep-damage model
Creep crack growth behavior of the 9Cr-1Mo steel under multi-axial stress state at 600° C
was investigated by a modified creep damage model. Firstly, a modified creep damage …
was investigated by a modified creep damage model. Firstly, a modified creep damage …
Effects of creep ductility and notch constraint on creep fracture behavior in notched bar specimens
The creep rupture life of U-type notched specimens and smooth specimens has been
calculated based on the ductility exhaustion damage model using stress-dependent creep …
calculated based on the ductility exhaustion damage model using stress-dependent creep …
[HTML][HTML] Creep crack growth modelling of Grade 91 vessel weldments using a modified ductility based damage model
This paper reports creep crack growth modelling of Grade 91 vessel weldments at high
temperature using a modified ductility-based continuum damage mechanics (CDM) model …
temperature using a modified ductility-based continuum damage mechanics (CDM) model …