An anisotropic continuum damage model for high-cycle fatigue

2020 ◽  
pp. 1-15
Author(s):  
Liang Zhang ◽  
Zhenyuan Gao ◽  
Robert A. Haynes ◽  
Todd C. Henry ◽  
Wenbin Yu
Keyword(s):  
High Cycle Fatigue ◽  
Damage Model ◽  
Continuum Damage ◽  
Cycle Fatigue ◽  
Continuum Damage Model

A model of continuum damage mechanics for high cycle fatigue of metallic materials

2012 ◽  
Vol 22 (11) ◽  
pp. 2777-2782 ◽  
Author(s):  
Liang ZHANG ◽  
Xue-song LIU ◽  
Lin-sen WANG ◽  
Shuang-hui WU ◽  
Hong-yuan FANG
Keyword(s):  
Damage Mechanics ◽  
High Cycle Fatigue ◽  
Continuum Damage Mechanics ◽  
Continuum Damage ◽  
Metallic Materials ◽  
Cycle Fatigue

Modified Dyson Continuum Damage Model for Austenitic Steel Alloy

2018 ◽  
Vol 140 (4) ◽  
Author(s):  
Seok Jun Kang ◽  
Hoomin Lee ◽  
Jae Boong Choi ◽  
Moon Ki Kim
Keyword(s):  
Damage Model ◽  
Life Time ◽  
Continuum Damage ◽  
Creep Life ◽  
Creep Tests ◽  
Continuum Damage Model ◽  
Thermal Plant ◽  
Uniaxial Creep ◽  
Term Creep

Ultrasuper critical (USC) thermal plants are now in operation around the globe. Their applications include superheaters and reheaters, which generally require high temperature/pressure conditions. To withstand these harsh conditions, an austenitic heat-resistant HR3C (ASME TP310NbN) steel was developed for metal creep resistance. As the designed life time of a typical thermal plant is 150,000 h, it is very important to predict long-term creep behavior. In this study, a three-state variable continuum damage model (CDM) was modified for better estimation of long-term creep life. Accelerated uniaxial creep tests were performed to determine the material parameters. Also, the rupture type and microstructural precipitation were observed by scanning electron microscopy. The creep life of HR3C steel was predicted using only relatively short-term creep test data and was then successfully verified by comparison with the long-term creep data.

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