Crack growth evaluation by XFEM for nuclear pipes considering thermal aging embrittlement effect

Sim, Jae Min; Chang, Yoon‐Suk

doi:10.1111/ffe.12961

Cited by 10 publications

(9 citation statements)

References 34 publications

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“…e traction is a plastic deformation of a material in all coordinate (multidirection) induced due to mechanical force. It has been reported that the doom fracture and the crack propagation depend on the materials properties [18]. Furthermore, the microstructural analysis is carried out on the fractured samples.…”

Section: Resultsmentioning

confidence: 99%

Post-Surface Processing and Virtual Simulation Analysis of Ball-Punch Test on CP-Ti Material

Vemula

Reddy

Hussain

et al. 2022

Advances in Materials Science and Engineering

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The titanium alloy is one of the prime materials for many engineering applications. It has been recommended for the components in automotive engines, power sector, biomedical industries, and more applications. It is due to the unique properties of the material with good strength and corrosion resistance. However, it is very challenging to handle Ti-based materials in manufacturing sectors without damaging the metallurgical quality. Thus, an attempt made to study the deformability of the CP-Ti material through ball–punch test to represent the stress, strain, and formability limit during mechanical loading and plastic deformation. The experiments are conducted following the ASTM E643 standards to study the material behavior. The maximum cupping reached to a height of 8.69 mm and got teared at the peak of doom. The separation has induced grain detachment due to tensile loading. The same condition is used to simulate with PAM STAMP™ software and 8.48 mm is the maximum cupping height achieved. The different is 0.21 mm. The results are interesting with similar observations and found acceptable to study the deformation.

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Section: Resultsmentioning

confidence: 99%

Post-Surface Processing and Virtual Simulation Analysis of Ball-Punch Test on CP-Ti Material

Vemula

Reddy

Hussain

et al. 2022

Advances in Materials Science and Engineering

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“…The Maximum Stress Damage σ max /MPa MERR G θc /N/mm CF62 650 146 E316L 550 160 Figure 12 shows the meshing of the XFEM of the 1/2CT. The sparse meshing elements in the XFEM are applicable [25][26][27]. Figure 13 shows the dissimilar material XFEM models of the joint geometry with the material printed on their parts.…”

Section: Methodsmentioning

confidence: 99%

Fracture Toughness Calculation Method Amendment of the Dissimilar Steel Welded Joint Based on 3D XFEM

Qian

Zhao

2019

Metals

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The dissimilar steel welded joint is divided into three pieces, parent material–weldmetal–parent material, by the integrity identification of BS7910-2013. In reality, the undermatchedwelded joint geometry is dierent: parent material–heat aected zone (HAZ)–fusion line–weld metal.A combination of the CF62 (parent material) and E316L (welding rod) was the example undermatchedwelded joint, whose geometry was divided into four pieces to investigate the fracture toughness of thejoint by experiments and the extended finite element method (XFEM) calculation. The experimentalresults were used to change the fracture toughness of the undermatched welded joint, and the XFEMresults were used to amend the fracture toughness calculation method with a new definition of thecrack length. The research results show that the amendment of the undermatched welded jointgeometry expresses more accuracy of the fracture toughness of the joint. The XFEM models wereverified as valid by the experiment. The amendment of the fracture toughness calculation methodexpresses a better fit by the new definition of the crack length, in accordance with the crack routesimulated by the XFEM. The results after the amendment coincide with the reality in engineering.

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“…Practical applications naturally followed development, [61][62][63][64][65][66][67][68][69][70][71][72][73][74][75][76][77][78][79] starting with early efforts by Sukumar et al In paper, 61 multiple branches and holes as well as cracks emanating from holes were analyzed by the XFEM, and using standard displacement-based approximation is enriched by incorporating discontinuous fields through a partition-of-unity method. Computation of the SIFs in different examples was presented to demonstrate the accuracy and the robustness of the proposed technique.…”

Section: Literature Overviewmentioning

confidence: 99%

“…Therefore, differences of the crack growth were quantified and discussed. 75 Most of the presented practical problems were solved by using MORFEO/Crack for ABAQUS, 76 as the first commercially available software capable of simulating FCG. This was an excellent recommendation for Belgrade XFEM group to start with, taking into account experience gathered in aforementioned research.…”

Section: Literature Overviewmentioning

confidence: 99%

Fatigue crack growth simulation by extended finite element method: A review of case studies

Sedmak

2024

Fatigue Fract Eng Mat Struct

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Numerical simulation of fatigue crack growth (FCG) is presented, based on the application of the extended finite element method (XFEM). Couple of case studies are presented, as a review of recent experience of the Belgrade school of XFEM simulations, established at the Faculty of Mechanical Engineering. Case studies comprised Charpy specimen with initial crack at the notch tip, oil rig pipe with an axial surface crack, pressure vessels with a crack at the welded joint with connecting pipe, turbine shaft with a crack at the transition radius, optimization of a wing spar in respect to FCG, the effect of mesh size on fatigue life estimation of a stringer panel, fatigue life estimation of wing‐to‐fuselage connecting lug, geometry effect on fatigue life of orthopedic plates and fatigue life of hip implant. Based on these case studies, XFEM is discussed in respect to its accuracy and efficiency. It is concluded that XFEM is a versatile tool for simulation of FCG, providing an excellent option for precise and reliable fatigue life of a cracked component.

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Crack growth evaluation by XFEM for nuclear pipes considering thermal aging embrittlement effect

Cited by 10 publications

References 34 publications

Post-Surface Processing and Virtual Simulation Analysis of Ball-Punch Test on CP-Ti Material

Post-Surface Processing and Virtual Simulation Analysis of Ball-Punch Test on CP-Ti Material

Fracture Toughness Calculation Method Amendment of the Dissimilar Steel Welded Joint Based on 3D XFEM

Fatigue crack growth simulation by extended finite element method: A review of case studies

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