Calculation Strategy for the Determination of Plasticity Correction Factors

Juan Du; Xue Jiao Shao; Qian Hua Kan; Ying Zhang; Xiao Long Fu

doi:10.4028/www.scientific.net/KEM.725.345

Paper Titles

Effect of the Non-Associativity of Plasticity Model on the Cyclic Behavior of Geomaterials
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Thermo-Elasto-Plastic Analysis of Pearlitic Transformation Plasticity under Combined Bending-Tensile Loading
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Fatigue of Extruded 2017A Aluminum Alloy Subjected to Non-Proportional Loading Paths
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Elastic and Plastic Analysis of O-Ring Seal for Reactor Pressure Vessel
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Calculation Strategy for the Determination of Plasticity Correction Factors
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Description of Closure of Cyclic Stress-Strain Loop and Ratcheting Based on Y-U Model
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On the Choice of the Power Law Flow Rule and its Consequences in Crystal Plasticity
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Evaluation of Very High Cycle Fatigue Properties of β-Titanium Alloy by Using an Ultrasonic Tensile-Compressive Fatigue Testing Machine
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Relaxation Oscillation in the Viscous Flow of Borosilicate Glass
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HomeKey Engineering MaterialsKey Engineering Materials Vol. 725Calculation Strategy for the Determination of...

Calculation Strategy for the Determination of Plasticity Correction Factors

Abstract:

This paper presents an investigation about the plasticity correction factor, K_e, proposed in the RCCM code, for correction of the elastic stress ranges exceeding twice the yield stress, resulting from both mechanical and thermal loading. The plasticity correction factors are analyzed using a calculation strategy based on a comparison between results from linear elastic and elastoplastic analyses. The RCC-M code provides the codified expressions of K_e and material parameters for general materials of nuclear components, but there are no expressions and material parameters for the new material. Several elastoplastic models, geometries and loading types are considered in the study based on the general material listed in RCCM code to determine the calculation strategy for the determination of K_e for new material. Based on the results, the determination of K_e expressions and parameters for Titanium Alloy is discussed. The proposed K_e factor of Titanium Alloy has been determined and delivered the same sufficiently conservative results. An exemplary verification calculation of general materials that have been performed and the conservative allowance is obtained.

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Advances in Engineering Plasticity and its Application XIII

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Periodical:

Key Engineering Materials (Volume 725)

Pages:

345-350

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.725.345

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Online since:

December 2016

Authors:

Juan Du*, Xue Jiao Shao, Qian Hua Kan, Ying Zhang, Xiao Long Fu

Keywords:

Elastoplastic Strain Correction Factors, Simplified Elastoplastic Fatigue Analysis, Titanium Alloy

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References

[1] ASME Boiler and Pressure Vessel Code Section III, Rules for Construction of Nuclear Vessels, 2001, The American Society of Mechanical Engineers, New York, New York, USA.

Google Scholar

[2] RCC-M Code Section III Subsection B, Design and Construction Rules for Mechanical Components of PWR Nuclear Islands, (2007).

Google Scholar

[3] Klaus W. Bieniussa, Determination of more realistic Ke, r-factor for simplified elastic-plastic analysis, Nuclear Engineering and Design 174(1997)343-352.

DOI: 10.1016/s0029-5493(97)00129-5

Google Scholar

[4] Gerry C. Slagis, Meaning of Ke in Design-by-Analysis Fatigue Evaluation, Transactions of the ASME, Vol. 128, FEBRUARY (2006).

Google Scholar

[5] Helder F. S. G Pereira, A Preliminary Assessment of the Ke Factor Proposed in the EN13445 Standard for Fatigue Analysis of Unwelded Material, Journal of Pressure Vessel Technology, Vol. 131, FEBRUARY (2009).

DOI: 10.1115/1.3027455

Google Scholar