Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)

This thesis proposes the ability an improved FEM technique known as extended finite element method (XFEM) to analyse fatigue crack growth under constant amplitude loading. This thesis compares numerically modelled crack propagation in a bending steel specimen with experimentally conducted and simul...

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Main Author: Muhammad Shafeeq, Abdul Hannan
Format: Monograph
Language:English
Published: Universiti Sains Malaysia 2018
Subjects:
Online Access:http://eprints.usm.my/54389/
http://eprints.usm.my/54389/1/Two-Dimensional%20Fatigue%20Crack%20Growth%20Analysis%20Using%20Extended%20Finite%20Element%20Method%20%28XFEM%29_Muhammad%20Shafeeq%20Abdul%20Hannan_M4_2018.pdf
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author Muhammad Shafeeq, Abdul Hannan
author_facet Muhammad Shafeeq, Abdul Hannan
author_sort Muhammad Shafeeq, Abdul Hannan
building USM Institutional Repository
collection Online Access
description This thesis proposes the ability an improved FEM technique known as extended finite element method (XFEM) to analyse fatigue crack growth under constant amplitude loading. This thesis compares numerically modelled crack propagation in a bending steel specimen with experimentally conducted and simulated previously using traditional FEM technique. The aim of the study was to perform numerical analysis of crack propagation in order to determine the shape of the crack extension. Model of the test specimen was prepared based on geometric parametres and cyclic load condition. The numerical analysis was performed using Abaqus 6.12-2. Crack propagation was simulated by using the numerical extended finite element method (XFEM) under low-cycle fatigue criterion using direct cyclic approach. This thesis, verifies the validity of this numerical method for crack propagation. The numerical results of the direction of the crack propagation were compared with the experimental findings in a real specimen and previously simulated using adapative technique method in the literature [1]. The outcome of the proposed method is not as what was expected due to the crack propagation was not like illustrated in the literature. It is shown that the computed crack path does not justify the previous findings.
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format Monograph
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institution Universiti Sains Malaysia
institution_category Local University
language English
last_indexed 2025-11-15T18:40:32Z
publishDate 2018
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spelling usm-543892022-08-30T00:20:08Z http://eprints.usm.my/54389/ Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM) Muhammad Shafeeq, Abdul Hannan T Technology TJ Mechanical engineering and machinery This thesis proposes the ability an improved FEM technique known as extended finite element method (XFEM) to analyse fatigue crack growth under constant amplitude loading. This thesis compares numerically modelled crack propagation in a bending steel specimen with experimentally conducted and simulated previously using traditional FEM technique. The aim of the study was to perform numerical analysis of crack propagation in order to determine the shape of the crack extension. Model of the test specimen was prepared based on geometric parametres and cyclic load condition. The numerical analysis was performed using Abaqus 6.12-2. Crack propagation was simulated by using the numerical extended finite element method (XFEM) under low-cycle fatigue criterion using direct cyclic approach. This thesis, verifies the validity of this numerical method for crack propagation. The numerical results of the direction of the crack propagation were compared with the experimental findings in a real specimen and previously simulated using adapative technique method in the literature [1]. The outcome of the proposed method is not as what was expected due to the crack propagation was not like illustrated in the literature. It is shown that the computed crack path does not justify the previous findings. Universiti Sains Malaysia 2018-05-01 Monograph NonPeerReviewed application/pdf en http://eprints.usm.my/54389/1/Two-Dimensional%20Fatigue%20Crack%20Growth%20Analysis%20Using%20Extended%20Finite%20Element%20Method%20%28XFEM%29_Muhammad%20Shafeeq%20Abdul%20Hannan_M4_2018.pdf Muhammad Shafeeq, Abdul Hannan (2018) Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM). Project Report. Universiti Sains Malaysia, Pusat Pengajian Kejuruteraan Mekanikal. (Submitted)
spellingShingle T Technology
TJ Mechanical engineering and machinery
Muhammad Shafeeq, Abdul Hannan
Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title_full Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title_fullStr Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title_full_unstemmed Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title_short Two-Dimensional Fatigue Crack Growth Analysis Using Extended Finite Element Method (XFEM)
title_sort two-dimensional fatigue crack growth analysis using extended finite element method (xfem)
topic T Technology
TJ Mechanical engineering and machinery
url http://eprints.usm.my/54389/
http://eprints.usm.my/54389/1/Two-Dimensional%20Fatigue%20Crack%20Growth%20Analysis%20Using%20Extended%20Finite%20Element%20Method%20%28XFEM%29_Muhammad%20Shafeeq%20Abdul%20Hannan_M4_2018.pdf