Probabilistic fracture failure analysis of nuclear piping containing defects using R6 method

Lin, Yanwei; Xie, Yu; Wang, X.H.

doi:10.1016/j.nucengdes.2003.12.007

Cited by 12 publications

(4 citation statements)

References 7 publications

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“…This methodology considers that any sort of failure from a fragile crack to plastic collapse is obtained from the brittle fracture by a plasticity correction. Several methods are used to determine this curve: Structural INTegrity Assessment Procedure (SINTAP) in Europe [34], Electric Power Research Institute (EPRI) in the United States [35], and R6 in the UK [36]. The mathematical expression of this curve determined from the SINTAP method is presented by:…”

Section: Determination Of Failure Assessment Diagrammentioning

confidence: 99%

Analysis of Crack Behaviour in Pipeline System Using FAD Diagram Based on Numerical Simulation under XFEM

et al. 2020

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For a long time, cracked structures have triggered various researchers to develop a structural integrity approach and design models to address the fracture problems. In the present study, a pipeline with an axial semi-elliptical surface defect was examined in detail. Recent works have highlighted the use of the classical finite element method (CFEM) as numerical tools to solve the fracture mechanics; however, this approach comes with a few difficulties in the modelling aspects. To overcome this issue, we proposed the use of the extended finite element method (XFEM), which was implemented in the commercial version of Abaqus software. Moreover, we have used the results based on this technique in the volumetric method to estimate the stress intensity factors (SIFs). Then, this parameter was employed to build the failure assessment diagram (FAD). The FAD curve was used in the current investigation because it is one of the conventional methods for the evaluation of flaws in steel pipes. The XFEM simulations enable us to draw an FAD curve that can be used as a practical reference for defect evaluation in pipeline systems in the industrial world.

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Section: Determination Of Failure Assessment Diagrammentioning

confidence: 99%

Analysis of Crack Behaviour in Pipeline System Using FAD Diagram Based on Numerical Simulation under XFEM

et al. 2020

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“…Second, probabilistic analysis, enables the distribution of a response variable to be determined from the distributions of the input variables. Lin et al (2004) have described a numerical example to show the application of SAPP‐2003 software in risk analysis of in‐service nuclear pressure piping containing defects. During probabilistic fracture failure analysis, crack sizes, operating loadings, fracture toughness and flow stress are taken into account.…”

Section: Literature Reviewmentioning

confidence: 99%

Application of probabilistic finite element analysis for crane hook design

Vinodh

Ravikumar

2012

Journal of Engineering, Design and Technology

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If you would like to write for this, or any other Emerald publication, then please use our Emerald for Authors service information about how to choose which publication to write for and submission guidelines are available for all. Please visit www.emeraldinsight.com/authors for more information. About Emerald www.emeraldinsight.comEmerald is a global publisher linking research and practice to the benefit of society. The company manages a portfolio of more than 290 journals and over 2,350 books and book series volumes, as well as providing an extensive range of online products and additional customer resources and services.Emerald is both COUNTER 4 and TRANSFER compliant. The organization is a partner of the Committee on Publication Ethics (COPE) and also works with Portico and the LOCKSS initiative for digital archive preservation. AbstractPurpose -The purpose of this paper is to report a study in which the feasibility of conducting probabilistic finite element analysis (FEA) for crane hook design has been explored. Design/methodology/approach -This paper presents the results of probabilistic analysis, where in the input random variables are varied and corresponding variations in the output parameters were observed. In this study, material properties and load have been considered as random input variables and the maximum stress, maximum deflection variations were considered as output random variables. Findings -The probability of occurrence of output variation and the sensitivity of output variables on the input variables are the important results generated from this analysis. By performing this probabilistic analysis, the random selection of factor of safety could be avoided.Research limitations/implications -The implementation study has been carried out for a single product. Practical implications -The usage of the approach will indicate the importance of probabilistic analysis in product design and development process. This process will enable the organization to compete in the global market. Originality/value -A case study has been reported to indicate the feasibility of performing probabilistic FEA for crane hook design. Hence, the contributions are original.

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“…These cracks behave as stress concentration points, compromising the cylinder's structural integrity. The impacts of such failures are frequently serious, involving dangers to human safety, environmental damage, and large economic losses [1,2]. Crack interaction is gaining popularity because of its ability to promote crack propagation and create unexpected failure types [3].…”

Section: Introductionmentioning

confidence: 99%

Interaction Assessment of Stress Intensity Factors of Surface Cracks on Thick Cylinders under Tension Force and Bending Moment

Omar Mohammed Al-Moayed,

Johan M.F,

Al Emran Ismail

et al. 2024

ARAM

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From an engineering perspective, hollow cylinders have various applications in the industry due to their strength, versatility, and geometric properties, making them vital for various applications in diverse industries. Therefore, it could be seen in many aspects such as fluid conveyance, manufacturing and fabrication, rotating machinery, structural components, storage, and pressure vessels. As it is well-known fracture is the most dominant type of failure in cylinders that is caused by defects or flaws. With time, these cracks (flaws) may extend and lead to a tragic failure, posing significant risks to both the nearby environment and humans. Moreover, crack cooperation which is known as (crack interaction) represents a chief apprehension, where cooperation or interaction may accelerate the crack growth and cause unpredictable failure. In this work, a wide variety of crack configurations were examined to quantify the interaction of double-interacting surface cracks located on a thick cylinder numerically via ANSYS software. The Stress Intensity Factor (SIFs) has been utilized as a driving force to describe the crack interaction. The results found that crack interaction influenced both cracks by the same rate, and SIFs distributed along the crack front by the same style as that of a single crack. Also, an inversely proportional relationship has been found between the crack interaction and the separation distance between the cracks. It is possible to conclude that the crack interaction of double interacting cracks exhibited a shielding effect, where SIFs for the case of double cracks were less than those of single crack.

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Probabilistic fracture failure analysis of nuclear piping containing defects using R6 method

Cited by 12 publications

References 7 publications

Analysis of Crack Behaviour in Pipeline System Using FAD Diagram Based on Numerical Simulation under XFEM

Analysis of Crack Behaviour in Pipeline System Using FAD Diagram Based on Numerical Simulation under XFEM

Application of probabilistic finite element analysis for crane hook design

Interaction Assessment of Stress Intensity Factors of Surface Cracks on Thick Cylinders under Tension Force and Bending Moment

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