Computer Simulations of the Fatigue Crack Propagation

Computer Simulations of the Fatigue Crack Propagation

The following hypothesis for design of structures based on the damage tolerance philosophy is laid down: the perpendicular fatigue crack growth rate v in a certain point of a curved crack front is given by the local value of stress intensity factor per unit of nominal stress K' and the local tr...

Full description

Bibliographic Details
Main Authors: A. Materna, V. Oliva
Format: Article
Language:English
Published: CTU Central Library 2000-01-01
Series:Acta Polytechnica
Online Access:https://ojs.cvut.cz/ojs/index.php/ap/article/view/140
id doaj-9a665293ed2c42509d86c34addf7fac9
record_format Article
spelling doaj-9a665293ed2c42509d86c34addf7fac92020-11-24T23:53:20ZengCTU Central LibraryActa Polytechnica1210-27091805-23632000-01-01404140Computer Simulations of the Fatigue Crack PropagationA. MaternaV. OlivaThe following hypothesis for design of structures based on the damage tolerance philosophy is laid down: the perpendicular fatigue crack growth rate v in a certain point of a curved crack front is given by the local value of stress intensity factor per unit of nominal stress K' and the local triaxiality T which describes the constraint. The relationship v = f (K', T) is supposed to be typical for a given loading spectrum and material. Such relationship for a 2024 Al alloy and the flight-simulation spectrum was derived from the fatigue test of the rectangular panel with the central hole and used for three-dimensional simulation of the corner fatigue crack propagation in the model of the wing spar flangeplate. Finite element and boundary element methods were used for these computations. The results of the simulation are in good agreement with the experiment.https://ojs.cvut.cz/ojs/index.php/ap/article/view/140
collection DOAJ
language English
format Article
sources DOAJ
author A. Materna
V. Oliva
spellingShingle A. Materna
V. Oliva
Computer Simulations of the Fatigue Crack Propagation
Acta Polytechnica
author_facet A. Materna
V. Oliva
author_sort A. Materna
title Computer Simulations of the Fatigue Crack Propagation
title_short Computer Simulations of the Fatigue Crack Propagation
title_full Computer Simulations of the Fatigue Crack Propagation
title_fullStr Computer Simulations of the Fatigue Crack Propagation
title_full_unstemmed Computer Simulations of the Fatigue Crack Propagation
title_sort computer simulations of the fatigue crack propagation
publisher CTU Central Library
series Acta Polytechnica
issn 1210-2709
1805-2363
publishDate 2000-01-01
description The following hypothesis for design of structures based on the damage tolerance philosophy is laid down: the perpendicular fatigue crack growth rate v in a certain point of a curved crack front is given by the local value of stress intensity factor per unit of nominal stress K' and the local triaxiality T which describes the constraint. The relationship v = f (K', T) is supposed to be typical for a given loading spectrum and material. Such relationship for a 2024 Al alloy and the flight-simulation spectrum was derived from the fatigue test of the rectangular panel with the central hole and used for three-dimensional simulation of the corner fatigue crack propagation in the model of the wing spar flangeplate. Finite element and boundary element methods were used for these computations. The results of the simulation are in good agreement with the experiment.
url https://ojs.cvut.cz/ojs/index.php/ap/article/view/140
work_keys_str_mv AT amaterna computersimulationsofthefatiguecrackpropagation
AT voliva computersimulationsofthefatiguecrackpropagation
_version_ 1725470270851907584

Similar Items