An overview of fracture mechanics with ANSYS

Al Emran Ismail; Saifulnizan Jamian; Kamarul Azhar Kamarudin; Mohd Khir Mohd Nor; Mohd Norihan Ibrahim; Moch Agus Choiron

doi:10.30880/ijie.2018.10.05.010

An overview of fracture mechanics with ANSYS

Al Emran Ismail^*
, Saifulnizan Jamian
, Kamarul Azhar Kamarudin
, Mohd Khir Mohd Nor
, Mohd Norihan Ibrahim
, Moch Agus Choiron

^*Corresponding author for this work

Faculty of Engineering

Research output: Contribution to journal › Article › peer-review

26 Citations (Scopus)

Abstract

This paper reviewed the use of ANSYS finite element program in analyzing the engineering structures containing defects or cracks. It is provided a fracture mechanics module which is capable to model the crack tip efficiently. In studying the cracks in elastic medium, linear elastic fracture mechanics (LEFM) is used where the crack-driving force called stress intensity factor, J-integral, energy release rate is provided as indicators of failure. There are three approaches can be used to calculate the stress intensity factors (SIF) such as Displacement Extrapolation Method (DEM) and Interaction Integral Method (IIM). Energy Release Rate (ERR) is calculated using Virtual Crack Closure Technique (VCCT) then it is converted to SIF. Based on the comparison, it is found that DEM, VCCT and J-integral techniques produced the SIFs are almost closed to the results obtained from open literature. However, IIM method lead to under estimate the SIFs.

Original language	English
Pages (from-to)	59-67
Number of pages	9
Journal	International Journal of Integrated Engineering
Volume	10
Issue number	5
DOIs	https://doi.org/10.30880/ijie.2018.10.05.010
Publication status	Published - 2018

Keywords

ANSYS
Crack
Displacement Extrapolation Method (DEM)
Fracture mechanics
Interaction Integral Method (IIM)
J-integral
Stress Intensity Factor (SIF)
Virtual Crack Closure Method (VCCM)

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10.30880/ijie.2018.10.05.010

Cite this

@article{b63f75c688954fda8cd770bd43a277e9,

title = "An overview of fracture mechanics with ANSYS",

abstract = "This paper reviewed the use of ANSYS finite element program in analyzing the engineering structures containing defects or cracks. It is provided a fracture mechanics module which is capable to model the crack tip efficiently. In studying the cracks in elastic medium, linear elastic fracture mechanics (LEFM) is used where the crack-driving force called stress intensity factor, J-integral, energy release rate is provided as indicators of failure. There are three approaches can be used to calculate the stress intensity factors (SIF) such as Displacement Extrapolation Method (DEM) and Interaction Integral Method (IIM). Energy Release Rate (ERR) is calculated using Virtual Crack Closure Technique (VCCT) then it is converted to SIF. Based on the comparison, it is found that DEM, VCCT and J-integral techniques produced the SIFs are almost closed to the results obtained from open literature. However, IIM method lead to under estimate the SIFs.",

keywords = "ANSYS, Crack, Displacement Extrapolation Method (DEM), Fracture mechanics, Interaction Integral Method (IIM), J-integral, Stress Intensity Factor (SIF), Virtual Crack Closure Method (VCCM)",

author = "Ismail, \{Al Emran\} and Saifulnizan Jamian and Kamarudin, \{Kamarul Azhar\} and \{Mohd Nor\}, \{Mohd Khir\} and Ibrahim, \{Mohd Norihan\} and Choiron, \{Moch Agus\}",

note = "Publisher Copyright: {\textcopyright} 2018, Penerbit UTHM.",

year = "2018",

doi = "10.30880/ijie.2018.10.05.010",

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volume = "10",

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AU - Ismail, Al Emran

AU - Jamian, Saifulnizan

AU - Kamarudin, Kamarul Azhar

AU - Mohd Nor, Mohd Khir

AU - Ibrahim, Mohd Norihan

AU - Choiron, Moch Agus

PY - 2018

Y1 - 2018

N2 - This paper reviewed the use of ANSYS finite element program in analyzing the engineering structures containing defects or cracks. It is provided a fracture mechanics module which is capable to model the crack tip efficiently. In studying the cracks in elastic medium, linear elastic fracture mechanics (LEFM) is used where the crack-driving force called stress intensity factor, J-integral, energy release rate is provided as indicators of failure. There are three approaches can be used to calculate the stress intensity factors (SIF) such as Displacement Extrapolation Method (DEM) and Interaction Integral Method (IIM). Energy Release Rate (ERR) is calculated using Virtual Crack Closure Technique (VCCT) then it is converted to SIF. Based on the comparison, it is found that DEM, VCCT and J-integral techniques produced the SIFs are almost closed to the results obtained from open literature. However, IIM method lead to under estimate the SIFs.

AB - This paper reviewed the use of ANSYS finite element program in analyzing the engineering structures containing defects or cracks. It is provided a fracture mechanics module which is capable to model the crack tip efficiently. In studying the cracks in elastic medium, linear elastic fracture mechanics (LEFM) is used where the crack-driving force called stress intensity factor, J-integral, energy release rate is provided as indicators of failure. There are three approaches can be used to calculate the stress intensity factors (SIF) such as Displacement Extrapolation Method (DEM) and Interaction Integral Method (IIM). Energy Release Rate (ERR) is calculated using Virtual Crack Closure Technique (VCCT) then it is converted to SIF. Based on the comparison, it is found that DEM, VCCT and J-integral techniques produced the SIFs are almost closed to the results obtained from open literature. However, IIM method lead to under estimate the SIFs.

KW - ANSYS

KW - Crack

KW - Displacement Extrapolation Method (DEM)

KW - Fracture mechanics

KW - Interaction Integral Method (IIM)

KW - J-integral

KW - Stress Intensity Factor (SIF)

KW - Virtual Crack Closure Method (VCCM)

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U2 - 10.30880/ijie.2018.10.05.010

DO - 10.30880/ijie.2018.10.05.010

M3 - Article

AN - SCOPUS:85061656944

SN - 2229-838X

VL - 10

SP - 59

EP - 67

JO - International Journal of Integrated Engineering

JF - International Journal of Integrated Engineering

IS - 5

ER -

An overview of fracture mechanics with ANSYS

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