Paper Title:
Experimental Study on Stress Field Parameters of an Interface Crack in Aluminum/ Epoxy
  Abstract

Standard experimental tests including photoelasticity in the evaluation of stress intensity factors in crack tip has been regarded widely. A least-squares method is used to determine the stress field parameters of interface crack in Aluminum/ epoxy bimaterial and its evolvement. Based on multi-parameter stress field equations and the least-squares principle, a set of over-determined nonlinear equations is established by fitting the isochromatic phase field obtained by digital phase-shifting photoelasticity in this paper. An iterative procedure based on Newton-Raphson method is utilized to estimate the unknown stress field parameters. Interface crack experiments reveal that the modulus of combined stress intensity factor increases with the applied loads and however its phase angle holds the line on the condition of same loading direction. On the other hand, the modulus of combined stress intensity factor increases with the loading direction from 30o to 75o under the same applied load, however, its absolute phase angle decreases and is independent of the loads.

  Info
Periodical
Edited by
R. L. Burguete, M. Lucas, E. A. Patterson, S. Quinn
Pages
428-433
DOI
10.4028/www.scientific.net/AMM.70.428
Citation
Z. K. Lei, X. M. Li, "Experimental Study on Stress Field Parameters of an Interface Crack in Aluminum/ Epoxy", Applied Mechanics and Materials, Vol. 70, pp. 428-433, 2011
Online since
August 2011
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: Jian Chuan Zhang, Huai Bo Song, Xue Yong Li, Chang Hou Lu
Chapter 6: Mechatronics
Abstract:Because of shortcomings of images of motion objects in deep space,including non-uniform distribution of background pixels,low SNR, general...
690
Authors: Yong Yang, Chuan Zheng Zhu, Yuan Yuan Bai, Wei Li
Chapter 3: Measuring Technology and Mechatronics
Abstract:Retroreflective film are used widely in traffic and municipal field as information carrier, the retroreflection index is considered the most...
1284
Authors: Ben Ning Qu, Ran Guo, Bang Cheng Yang
Chapter 5: Applied Computational Methods in Engineering Research
Abstract:L-shape traffic sign bar is composed of a stand column and a cantilever bar using bolted connection. The cross-section of stand column...
1250
Authors: Yong Jie Wang, Hui Zhang, Jie Ran Wang
Chapter 4: Power and Electric Research, Electronics and Microelectronics, Embedded and Integrated Systems
Abstract:Specific to the parameters in the process of three-phase smart meter calibration, such as DC offset, AC offset, AC gain, etc. impact on...
2043
Authors: Pan Geng, Yin Zhong Ye, Wei Min Wu, Yi Jian Liu, Shi Long Xue
Chapter 8: Power and Electric Research, Electronics and Microelectronics, Embedded and Integrated Systems and Aplications
Abstract:This paper takes a two-stage three-phase inverter as an example. The efficiency calculation method is analyzed in detail for the inverter,...
1958