Paper Title:
An Efficient Way to Characterize the Fatigue Crack Growth Based on Numerical Analysis
  Abstract

The behavior of plasticity induced fatigue crack closure (PICC) in middle tension specimen was analyzed by the elastic-plastic finite element method. For the constant-K (CK) loading cases, the opening stress intensity factor are independent of crack length. The level of increases with the maximal applied stress intensity factor for given load ratio and increases with for fixed . The in plane strain state is much smaller than that in plane stress state. The results under CK loadings can be deduced to constant amplitude cyclic loading case during which the load ratio, maximal load level, crack length and specimen thickness are all the factors affecting the crack closure effect. The phenomena revealed in the analysis are beneficial in understanding the driving force mechanism of the fatigue crack growth.

  Info
Periodical
Key Engineering Materials (Volumes 417-418)
Edited by
M.H Aliabadi, S. Abela, S. Baragetti, M. Guagliano and Han-Seung Lee
Pages
653-656
DOI
10.4028/www.scientific.net/KEM.417-418.653
Citation
Y. Z. Li, J. He, Z. P. Zhang, "An Efficient Way to Characterize the Fatigue Crack Growth Based on Numerical Analysis", Key Engineering Materials, Vols. 417-418, pp. 653-656, 2010
Online since
October 2009
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Li Yun Li, F.X. Che, D.A. Liu
Abstract:Multi-crack problems are deeply involved in rock-like material and rock engineering. In order to study the influences of lateral stress and...
1523
Authors: Tomáš Denk, Vladislav Oliva, Aleš Materna
Abstract:A two-parameter constraint-based fracture mechanics approach is used to explain the effect of the constraint on the apparently anomalous...
307
Authors: Ozgur Inan, Serkan Dag, Fazil Erdogan
Abstract:In this study the three – dimensional surface cracking of a graded coating bonded to a homogeneous substrate is considered. The main...
373
Authors: Jun Si, Fu Zhen Xuan, Shan Tung Tu
Abstract:The interaction behavior of two non-aligned through-wall cracks in flat plates is investigated by the finite element method (FEM) under...
105
Authors: Jia Zhen Zhang, Xiao Dong He, Shan Yi Du
Abstract:In-situ SEM observations have revealed that fatigue crack propagation in aluminium alloys is caused by the shear band decohesion around the...
293