Fatigue crack propagation simulation of airfoil section blade under aerodynamic and centrifugal loads

Wang, Weiwei; Ni, Kaixuan; Ma, Hui; Xiong, Qian; Wu, Zhiyuan; Wang, Hongji; Fan, Caizi

doi:10.1016/j.engfracmech.2023.109702

Cited by 11 publications

(2 citation statements)

References 37 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is significant to emphasize that the absence of internal holes in the specimen contributes to higher von Mises stress levels compared to the same specimen with holes, as shown in Figures 6,8,13,and 16. This difference can be attributed to the fact that the presence of holes acts as stress concentrators, causing localized stress intensification.…”

Section: Case IVmentioning

confidence: 90%

“…Additionally, the ANSYS Workbench offers capabilities for adaptive meshing, which allows for automatic refinement of the mesh around the crack tip to accurately capture stress gradients and accurately predict crack growth. Furthermore, software packages like Abaqus [11,12], COMSOL [13,14], FRANC3D [15,16], Zencrack [17], AFGROW [18], NASGRO [19], and Nastran [17] also provide powerful computational tools for simulating crack growth and analyzing the behavior of structures subjected to crack propagation. Additionally, there exist various software options for simulating crack propagation, such as the advanced iterative-finite element method (AI-FEM) [20] and advanced finite element analysis (AFEA) [21].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Investigating the Influence of Holes as Crack Arrestors in Simulating Crack Growth Behavior Using Finite Element Method

Fageehi,

Alshoaibi

2024

Applied Sciences

View full text Add to dashboard Cite

The primary focus of this paper is to investigate the application of ANSYS Workbench 19.2 software’s advanced feature, known as Separating Morphing and Adaptive Remeshing Technology (SMART), in simulating the growth of cracks within structures that incorporate holes. Holes are strategically utilized as crack arrestors in engineering structures to prevent catastrophic failures. This technique redistributes stress concentrations and alters crack propagation paths, enhancing structural integrity and preventing crack propagation. This paper explores the concept of using holes as crack arrestors, highlighting their significance in increasing structural resilience and mitigating the risks associated with crack propagation. The crack growth path is estimated by applying the maximum circumferential stress criterion, while the calculation of the associated stress intensity factors is performed by applying the interaction integral technique. To analyze the impact of holes on the crack growth path and evaluate their effectiveness as crack arrestors, additional specimens with identical external dimensions but without any internal holes were tested. This comparison was conducted to provide a basis for assessing the role of holes in altering crack propagation behavior and their potential as effective crack arrestors. The results of this study demonstrated that the presence of a hole had a significant influence on the crack growth behavior. The crack was observed to be attracted towards the hole, leading to a deviation in its trajectory either towards the hole or deflecting around it. Conversely, in the absence of a hole, the crack propagated without any alteration in its path. To validate these findings, the computed crack growth paths and associated stress intensity factors were compared with experimental and numerical data available in the open literature. The remarkable consistency between the computational study results for crack growth path, stress intensity factors, and von Mises stress distribution, and the corresponding experimental and numerical data, is a testament to the accuracy and reliability of the computational simulations.

show abstract

Section: Case IVmentioning

confidence: 90%