Enhanced models of creep crack initiation prediction coupled the stress-regime creep properties and constraint effect

European Journal of Mechanics - A/Solids ◽

10.1016/j.euromechsol.2018.11.010 ◽

2019 ◽

Vol 74 ◽

pp. 145-159 ◽

Author(s):

Dongquan Wu ◽

Hongyang Jing ◽

Lianyong Xu ◽

Lei Zhao ◽

Yongdian Han

Keyword(s):

Crack Initiation ◽

Constraint Effect ◽

Stress Regime ◽

Creep Properties ◽

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Analytical approaches of creep crack initiation prediction coupled with the residual stress and constraint effect

European Journal of Mechanics - A/Solids ◽

10.1016/j.euromechsol.2018.03.011 ◽

2018 ◽

Vol 71 ◽

pp. 1-15 ◽

Author(s):

Dongquan Wu ◽

Hongyang Jing ◽

Lianyong Xu ◽

Lei Zhao ◽

Yongdian Han

Keyword(s):

Residual Stress ◽

Crack Initiation ◽

Constraint Effect ◽

Creep Crack ◽

Analytical Approaches

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Correlation Analysis Between Time-Dependent Creep Crack-Tip Stress and Constraint Effect on Creep Crack Initiation Time

Volume 6: Materials and Fabrication ◽

10.1115/pvp2020-21429 ◽

2020 ◽

Author(s):

Seung-Ho Lee ◽

Hyun-Woo Jung ◽

Yun-Jae Kim ◽

Kamran Nikbin ◽

Robert A. Ainsworth

Keyword(s):

Crack Initiation ◽

Correlation Analysis ◽

Creep Crack Growth ◽

Crack Tip ◽

Compact Tension ◽

Time Dependent ◽

Initiation Time ◽

Constraint Effect ◽

Creep Crack ◽

Crack Tip Stress

Abstract In this study, to qualify the constraint effect on creep crack initiation, the correlation analysis between proposed constraint parameter Q’ using time-dependent creep crack-tip stress and creep crack initiation time variable Ai was performed. Ai implies the influence of constraint effect on creep crack initiation. The procedure to calculate the Ai and the Q’-parameter was presented. To evaluate various status of constraint effect, creep crack growth tests for twenty-one compact tension specimens of Type 316H stainless steel at 550°C were investigated. The results of correlation analysis explain the reason for the different initiation time at the same C* level in respect of constraint effect.

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Investigation on creep crack initiation prediction considering constraint effect using constraint parameter Q

Theoretical and Applied Fracture Mechanics ◽

10.1016/j.tafmec.2017.10.004 ◽

2018 ◽

Vol 96 ◽

pp. 631-641 ◽

Author(s):

Dongquan Wu ◽

Hongyang Jing ◽

Lianyong Xu ◽

Lei Zhao ◽

Yongdian Han

Keyword(s):

Crack Initiation ◽

Constraint Effect ◽

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Two-parameter approach of creep crack initiation times considering the constraint effect induced by specimen geometry

Theoretical and Applied Fracture Mechanics ◽

10.1016/j.tafmec.2018.03.010 ◽

2018 ◽

Vol 96 ◽

pp. 31-44 ◽

Author(s):

Dongquan Wu ◽

Hongyang Jing ◽

Lianyong Xu ◽

Lei Zhao ◽

Yongdian Han

Keyword(s):

Crack Initiation ◽

Specimen Geometry ◽

Constraint Effect ◽

Creep Crack ◽

Parameter Approach ◽

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Creep crack initiation prediction considering constraint effect for pressurized pipelines with circumferential surface cracks

Fatigue & Fracture of Engineering Materials & Structures ◽

10.1111/ffe.12829 ◽

2018 ◽

Vol 41 (9) ◽

pp. 1900-1917 ◽

Author(s):

D. Wu ◽

H. Jing ◽

L. Xu ◽

L. Zhao ◽

Y. Han

Keyword(s):

Crack Initiation ◽

Surface Cracks ◽

Constraint Effect ◽

Creep Crack ◽

Pressurized Pipelines

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Modelling creep damage in heat affected zone in 321 stainless steel. Part II: Application to creep crack initiation simulations

Materials at High Temperatures ◽

10.3184/096034001783640577 ◽

2001 ◽

Vol 18 (2) ◽

pp. 82-90 ◽

Author(s):

D. Poquillon ◽

M. Chabaud-Reytier ◽

L. Allais ◽

A. Pineau

Keyword(s):

Stainless Steel ◽

Crack Initiation ◽

Heat Affected Zone ◽

Creep Damage ◽

Creep Crack ◽

Stainless Steel Part

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Analysis of 316H Creep Crack Initiation Data at 550℃ using A Crack Tip Constraint Parameter

Engineering Fracture Mechanics ◽

10.1016/j.engfracmech.2021.107746 ◽

2021 ◽

pp. 107746

Author(s):

Seung-Ho Lee ◽

Hyun-Woo Jung ◽

Yun-Jae Kim ◽

Kamran Nikbin ◽

Robert A. Ainsworth

Keyword(s):

Crack Initiation ◽

Crack Tip ◽

Creep Crack ◽

Crack Tip Constraint

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Characterizations of material constraint effect for creep crack in center weldment under biaxial loading

International Journal of Fracture ◽

10.1007/s10704-021-00563-6 ◽

2021 ◽

Author(s):

Yanwei Dai ◽

Fei Qin ◽

Yinghua Liu ◽

Filippo Berto ◽

Haofeng Chen

Keyword(s):

Biaxial Loading ◽

Constraint Effect ◽

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Bestimmung von Kriechrißeinleitung und Kriechrißwachstum an einem 1 wt.% CrMoV-Stahl mit Hilfe des Potentialsonden-Verfahrens / Determination of creep crack initiation and growth of an 1 wt. % CrMovV steel with aid of the potential drop method / Détermination d’initiation et de croissance de fissuration au fluage dans une acier 1 wt.% CrMoV au moyen de méthode potential

Materials Testing ◽

10.1515/mt-1983-251205 ◽

1983 ◽

Vol 25 (12) ◽

pp. 429-433

Author(s):

H. Kockelmann ◽

Li Zili ◽

K. Maile

Keyword(s):

Crack Initiation ◽

Potential Drop ◽

Drop Method ◽

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Analytical and numerical investigations of creep crack initiation considering the load-independent constraint parameter $${{\varvec{Q}}}^{*}$$ Q ∗

Archive of Applied Mechanics ◽

10.1007/s00419-018-1433-3 ◽

2018 ◽

Vol 88 (11) ◽

pp. 2031-2050 ◽

Author(s):

Dongquan Wu ◽

Hongyang Jing ◽

Lianyong Xu ◽

Lei Zhao ◽

Yongdian Han

Keyword(s):

Crack Initiation ◽

Numerical Investigations ◽

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