Paper Title:
Real-Time Measurements on Crack-Tip Deformation Fields of LY12 Samples under Impact Tension
  Abstract

In this paper, the deformation fields of LY12 crack samples loaded by an SHTB are real-time investigated with the time interval of 10 µs by an optical system, which consists of a high-speed camera, a flash light, a frame grabber and a synchronization device with the delay-time less than microsecond. The cracks are preset by using the three-points bending method in a MTS fatigue machine. The crack is 2mm long with a flare angle of 60 degree. During the experiments, the dynamic deformation images are captured by the high speed camera and analyzed by newly developed software based on Digital Correlation theory. And the displacements fields near crack-tips according to the changes of the flare angle and radius during the impact process are obtained. Experimental results acquired in this paper are proofed, by compared with the theoretical calculations.

  Info
Periodical
Key Engineering Materials (Volumes 385-387)
Edited by
H.S. Lee, I.S. Yoon and M.H. Aliabadi
Pages
361-364
DOI
10.4028/www.scientific.net/KEM.385-387.361
Citation
S. Y. Chen, T. Lan, X. M. Chen, W. G. Kong, G. Q. Ni, "Real-Time Measurements on Crack-Tip Deformation Fields of LY12 Samples under Impact Tension", Key Engineering Materials, Vols. 385-387, pp. 361-364, 2008
Online since
July 2008
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: Jin San Ju, Xiu Gen Jiang, Xiang Rong Fu
Abstract:This paper primarily presents the development and application of automation computational analysis techniques to determine the dynamic...
705
Authors: Jian Xin Zhu, Zeng Liang Gao
Abstract:The measurement of crack propagation in solids is of vital importance for the research of the fatigue characteristic of solid materials. By...
2606
Authors: M.R.M. Aliha, Mahdi Rezaei
Abstract:Crack growth path was investigated experimentally, numerically and theoretically using two test specimens subjected to pure mode II loading....
159