Inferring the temperature dependence of Beremin cleavage model parameters from the Master Curve

Cao, Yupeng; Hu, Hui; Wang, Guozhen; Xuan, Fu‐Zhen

doi:10.1016/j.nucengdes.2010.11.009

Cited by 23 publications

(18 citation statements)

References 19 publications

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“…Thus, the temperature invariance of m over this region may be due to the micro crack distribution and the crack arrest occurrence. This is also observed in [27].…”

Section: Discussionsupporting

confidence: 72%

Calibration of Beremin model with the Master Curve

Qian

González-Albuixech

Niffenegger

2015

Engineering Fracture Mechanics

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“…Thus, the temperature invariance of m over this region may be due to the micro crack distribution and the crack arrest occurrence. This is also observed in [27].…”

Section: Discussionsupporting

confidence: 72%

Calibration of Beremin model with the Master Curve

Qian

González-Albuixech

Niffenegger

2015

Engineering Fracture Mechanics

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“…Using the Master Curve, randomly generate thousands of imaginary test results at the same temperature. Cao et al (2011) recommend 10,000. 3.…”

Section: Methods Of Cao Et Al (2011)mentioning

confidence: 99%

“…Walters and Dragt (2017) concluded that the number of specimens required to find the correct Beremin parameters was far too large and abandoned this approach. However, by randomly generating data based on the known statistical distribution of the Master Curve, Cao et al (2011) and Qian et al (2015) appear to have been able to "generate" ten thousand samples based on only performing a limited number of tests. While the method of Cao et al (2011) specifies that FE analysis should be run, the procedure itself makes use of SSY specimens, so it should be possible to use analytical methods like those of Andrieu (2012) to avoid the need of FE modelling.…”

Section: Methods Of Cao Et Al (2011)mentioning

confidence: 99%

Comparison of Methods to Find the Weibull Stress Parameters

Coppejans

Walters

2018

Volume 3: Structures, Safety, and Reliability

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The Weibull stress (Beremin, 1983) relates the local first principal stress and plastically strained volume to the probability of fracture. It requires two constants (m, σu) as input, which are generally regarded as material parameters. As the Beremin approach is used in the background to structural analysis rules, the Beremin parameters are now being used in other situations, including engineering analysis. However, the currently accepted way to find the Beremin constants requires twenty tests, which is considered to be unacceptably expensive for industrial application. Less expensive ways of finding the Beremin parameters have been published in the literature, but they have never been compared to the de facto standard. In this paper, the Beremin parameters were found by the de facto standard method and two other ways, and a comparison is made. It was found that the Beremin parameters can be estimated with reasonable accuracy with a method that uses on just two sets (six specimens) of fracture specimens by careful application of the method of Andrieu (2012). Also, a proposal is made for another method which is based only on the Master Curve temperature T0.

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“…(20) replaces the exponent of plastic strain in the modified Griffith criterion used previously [2][3][4][5][6][7][8][9][10][11][12][13][14]. As before, it is intended to account for the reduction in crack driving force due to plastic dissipation in the matrix (i.e.…”

Section: Micro-mechanically Informed Modelmentioning

confidence: 99%

“…One possibility is to keep the shape parameter constant, which leads to temperature dependence of the scale, u σ [7,8]. Another possibility is to keep the scale parameter constant, which leads to temperature dependence of the shape, m [9,10]. As for the low-constraint situation, m needs to be reduced with increasing temperature, i.e.…”

Section: Introductionmentioning

confidence: 99%

Predictions of Fracture Toughness for Weld Material When Adopting a Novel Particle Failure Criterion and a Measured Experimental Particle Distribution

James

Ford

Jivkov

2013

Volume 6A: Materials and Fabrication

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It is important for safety case justification of the continued use of nuclear power plant that any changes in the ferritic RPV steels' fracture toughness with temperature, irradiation and geometry can be accounted for, particularly with regards to plant life extension. It has been demonstrated that local approach methods have the potential to provide such estimates by assessing the likelihood of cleavage rupture.Here a micro-structurally informed, post-processing, local approach methodology with a new rupture criterion is presented. This has been applied to a base and weld material pair, made available under the EU FP7 PERFORM 60 Programme. This material has been selected as tensile and fracture data are available along with results of recently performed analyses to characterise and quantify the size distribution of fracture initiators for the weld material (predominantly found to be alumino-silicates) which is used as an input to the model.A series of finite element analyses have been performed for two-dimensional three-point bend specimens over a range of temperatures, constraint and irradiation states. Application of the local approach model to these results has then been favourably compared to the experimentally determined toughness. This has been achieved for a range of conditions when using the experimentally determined initiator particle distribution and maintaining the same calibration terms throughout for each material.

show abstract

Inferring the temperature dependence of Beremin cleavage model parameters from the Master Curve

Cited by 23 publications

References 19 publications

Calibration of Beremin model with the Master Curve

Calibration of Beremin model with the Master Curve

Comparison of Methods to Find the Weibull Stress Parameters

Predictions of Fracture Toughness for Weld Material When Adopting a Novel Particle Failure Criterion and a Measured Experimental Particle Distribution

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