Numerical analysis of frictional contact between crack lips in the framework of Linear Elastic Fracture Mechanics by a mesh-free approach

Elmhaia, Oussama; Belaasilia, Youssef; Askour, Omar; Braikat, Bouazza; Damil, Noureddine

doi:10.1016/j.tafmec.2023.103749

Cited by 8 publications

(4 citation statements)

References 39 publications

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“…Thus, the study of the SIF of shafts is essential to understand the fatigue life of the shafts [13], which could also indicate their life span [14]. The study of metal fatigue revolves around fracture mechanics under the Linear Elastic Fracture Mechanics concept [15].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Analysis of a Cracked Shaft: a Finite Element Modeling Approach

Thinesshwaran,

Husnain,

Akramin

et al. 2024

J. Phys.: Conf. Ser.

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Shafts are typically used in sophisticated mechanisms and machinery which highly depend on shafts for rotatory motion which could lead to the failure. In today’s contemporary, damages caused by cracking on mechanical components and structures have increased, causing crack and structural failure. The failure could be examined by the calculation of stress intensity factor (SIF). Once the shaft reaches the critical SIF (SIFIC), the flaw is initiated and has a potential to propagate upon loading. Typically, the flaw would spread in many patterns and tenders to the formation and initiation of different types of cracks. Thus, the objective of this research work is to analyse fatigue cracked shafts. Prediction of crack growth via SIF calculation. SIF is usually adapted to predict the stress intensity near the crack tip where crack propagation occurs. Thus, SIF is used to study and analyse the cracked surface in relation to crack initiation and propagation. The SIF is calculated through finite element method (FEM) since the FEM is capable simulating complex geometry. The SIF is calculated based on the deformation in FEM calculation. The results show the predicted crack propagation and SIF calculation. It is crucial to study the resistance of cracked shafts towards cyclic loading for maintenance preceding and retirement of the structure.

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Section: Introductionmentioning

confidence: 99%

Fatigue Analysis of a Cracked Shaft: a Finite Element Modeling Approach

Thinesshwaran,

Husnain,

Akramin

et al. 2024

J. Phys.: Conf. Ser.

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“…There have been several works that have focused on simulating the properties and behavior of graphene oxide powder (GOP) composite structures. These simulations are often performed using computational methods such as molecular dynamics (MD), 9,10 finite element analysis (FEA), 11,12 meshless methods [13][14][15][16][17] and analytical solution. 18,19 One area of focus in these simulations is on understanding the behavior of the graphene oxide powder within the composite material.…”

Section: Introduction and Noveltymentioning

confidence: 99%

Radial point interpolation‐Chebychev method with asymptotic numerical method for nonlinear buckling analysis of graphene oxide powder‐reinforced composite beams

Askour,

Rammane,

Mesmoudi

et al. 2024

Numerical Meth Engineering

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SummaryThis study aims to analyze the buckling and post‐buckling behaviors of multilayer nanocomposite beams reinforced with graphene oxide powders (GOPs) at low concentrations. The GOPs are randomly oriented and evenly distributed throughout the composite layers, with their weight fraction varying in the thickness direction. The Halpin‐Tsai model is employed to estimate each layer's effective material properties. The nonlinear governing equations for the FG‐GOPRC beam are derived based on the first‐order shear deformation beam theory, and a nonlinear algebraic system is formulated using the principle of potential energy. In this research, a comprehensive parametric analysis is conducted to examine the influence of various factors on the buckling and post‐buckling behaviors of the composite beams. These factors include the distribution pattern and weight fraction of graphene platelets (GPLs) nanofillers, as well as the geometry, size, slenderness ratio, and boundary conditions of the beams. Through the analysis, the study highlights the significant strengthening effect of these factors on the buckling and post‐buckling performance of the composite beams. The findings from this investigation contribute to a deeper understanding of the behavior of multilayer nanocomposite beams reinforced with GOPs. This knowledge can be valuable in designing and optimizing of composite structures for enhanced buckling resistance and post‐buckling performance.

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“…For the industrial purpose, the quality of the essential parts in related equipment is increasingly needed to be improved [1][2][3][4][5], and with the advancements in information technology, advanced manufacturing engineering, and the new energy industry, enhancing the stability and performance of core parts has become increasingly crucial [6][7][8][9]. The distribution of stress and resulting fractures on the surface and subsurface of these parts can greatly impact their lifespan [10][11][12][13]. The conventional crack analysis techniques such as linear elastic fracture mechanics and finite element analysis have long been used, but they suffer from limitations such as inability to accurately capture microscale crack propagation and assumptions of small deformations and linear elasticity [14].…”

Section: Introductionmentioning

confidence: 99%

Model Development of Stress Intensity Factor on 7057T6 Aluminum Alloy Using Extended Finite Element Method

et al. 2023

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The stress intensity factor represents a vital parameter within the realm of linear elastic fracture mechanics. It acts as the cornerstone in determining crack propagation and evaluating damage tolerance. However, calculating this factor is a complex task. To surmount this challenge, models of the stress intensity factor for both edge and center cracks were developed using the extended finite element method. The result of this effort is the ability to calculate the stress intensity factor at the crack tip under different loads and normalized crack lengths. The accuracy of these calculations was confirmed by comparing them to results from the NASGRO method, and the optimal mesh sizes for both the crack elements and overall units were established. Further analysis, conducted through MATLAB’s regression analysis, led to the development of an empirical model. This model was found to be both simple and reliable, making it an ideal tool for engineering applications.

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Numerical analysis of frictional contact between crack lips in the framework of Linear Elastic Fracture Mechanics by a mesh-free approach

Cited by 8 publications

References 39 publications

Fatigue Analysis of a Cracked Shaft: a Finite Element Modeling Approach

Fatigue Analysis of a Cracked Shaft: a Finite Element Modeling Approach

Radial point interpolation‐Chebychev method with asymptotic numerical method for nonlinear buckling analysis of graphene oxide powder‐reinforced composite beams

Model Development of Stress Intensity Factor on 7057T6 Aluminum Alloy Using Extended Finite Element Method

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