Finite Element Analysis of Crack-tip Opening Displacement and Plastic Zones Considering the Cyclic Material Behavior

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F19%3APU135635" target="_blank" >RIV/00216305:26620/19:PU135635 - isvavai.cz</a>

Result on the web

<a href="https://www.sciencedirect.com/science/article/pii/S2452321620302079" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2452321620302079</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.prostr.2020.01.140" target="_blank" >10.1016/j.prostr.2020.01.140</a>

Result language

angličtina

Original language name

Finite Element Analysis of Crack-tip Opening Displacement and Plastic Zones Considering the Cyclic Material Behavior

Original language description

Propagation and behavior of fatigue cracks are governed by strain fields in the vicinity of the crack tip. The numerical description of strains in the crack tip presents some challenges in the modelling by the multiscale involved in the fracture analysis. In this study, it is proposed a 2D finite element analysis conducted for fatigue crack propagation experiments (mode I) performed for a railway axle steel EA4T under plane stress conditions. The analysis considers a geometric approach to define a multiscale mesh on a center-crack tension (CCT) specimen for which a nonlinear material model with kinematic hardening was assumed. Crack tip opening displacement (CTOD) and plastic zones were determined for several load levels during loading and unloading states. The results show that the applied correction factors approximate better the crack propagation rate. Furthermore, the quadratic dependence of CTOD with the stress intensity factor was in good agreement with the numerical solutions.

Czech name

—

Czech description

—

Type

J_ost - Miscellaneous article in a specialist periodical

CEP classification

—

OECD FORD branch

20501 - Materials engineering

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2019

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Procedia Structural Integrity

ISSN

2452-3216

e-ISSN

—

Volume of the periodical

23

Issue of the periodical within the volume

1

Country of publishing house

IT - ITALY

Number of pages

6

Pages from-to

529-534

UT code for WoS article

—

EID of the result in the Scopus database

—