A simple method for calculating the stress intensity factors for complex 3D cracks at a notch

Daren Peng; Rhys Jones

doi:10.1016/j.engfracmech.2016.02.042

A simple method for calculating the stress intensity factors for complex 3D cracks at a notch

Daren Peng, Rhys Jones

Mechanical & Aerospace Engineering

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

7 Citations (Scopus)

Abstract

When performing a safety/durability assessment of structural components it is often necessary to consider both fatigue crack propagation and failure by fast fracture among the possible modes of failure. In this context the stress intensity factors at crack tips are important parameters for estimating residual life and criticality. The purpose of this paper is to present a simple method for calculating the mode I stress intensity factors (K) for through the- thickness flaws with an oblique (part) elliptical crack front. A range of examples are presented to demonstrate the accuracy of this method.

Original language	English
Pages (from-to)	81-86
Number of pages	6
Journal	Engineering Fracture Mechanics
Volume	158
DOIs	https://doi.org/10.1016/j.engfracmech.2016.02.042
Publication status	Published - 2016

Keywords

Through-the-thickness flaws
Oblique crack front
SENT
Stress intensity factor

Access to Document

10.1016/j.engfracmech.2016.02.042

Cite this

@article{4f49846fd2fd458c97c4745e50acb72a,

title = "A simple method for calculating the stress intensity factors for complex 3D cracks at a notch",

abstract = "When performing a safety/durability assessment of structural components it is often necessary to consider both fatigue crack propagation and failure by fast fracture among the possible modes of failure. In this context the stress intensity factors at crack tips are important parameters for estimating residual life and criticality. The purpose of this paper is to present a simple method for calculating the mode I stress intensity factors (K) for through the- thickness flaws with an oblique (part) elliptical crack front. A range of examples are presented to demonstrate the accuracy of this method.",

keywords = "Through-the-thickness flaws, Oblique crack front, SENT, Stress intensity factor",

author = "Daren Peng and Rhys Jones",

year = "2016",

doi = "10.1016/j.engfracmech.2016.02.042",

language = "English",

volume = "158",

pages = "81--86",

journal = "Engineering Fracture Mechanics",

issn = "0013-7944",

publisher = "Elsevier",

}

TY - JOUR

T1 - A simple method for calculating the stress intensity factors for complex 3D cracks at a notch

AU - Peng, Daren

AU - Jones, Rhys

PY - 2016

Y1 - 2016

N2 - When performing a safety/durability assessment of structural components it is often necessary to consider both fatigue crack propagation and failure by fast fracture among the possible modes of failure. In this context the stress intensity factors at crack tips are important parameters for estimating residual life and criticality. The purpose of this paper is to present a simple method for calculating the mode I stress intensity factors (K) for through the- thickness flaws with an oblique (part) elliptical crack front. A range of examples are presented to demonstrate the accuracy of this method.

AB - When performing a safety/durability assessment of structural components it is often necessary to consider both fatigue crack propagation and failure by fast fracture among the possible modes of failure. In this context the stress intensity factors at crack tips are important parameters for estimating residual life and criticality. The purpose of this paper is to present a simple method for calculating the mode I stress intensity factors (K) for through the- thickness flaws with an oblique (part) elliptical crack front. A range of examples are presented to demonstrate the accuracy of this method.

KW - Through-the-thickness flaws

KW - Oblique crack front

KW - SENT

KW - Stress intensity factor

U2 - 10.1016/j.engfracmech.2016.02.042

DO - 10.1016/j.engfracmech.2016.02.042

M3 - Article

SN - 0013-7944

VL - 158

SP - 81

EP - 86

JO - Engineering Fracture Mechanics

JF - Engineering Fracture Mechanics

ER -